14 best geiger muller counters

Product description

GQ gmc-300e Plus is a newer GMC300EPlus Fulfill of gmc-300 Series Geiger counter. Compared to the previous model, gmc-300e Plus improved overall quality. It installed a high contrast black/white LCD module, added a front LED indicator/an audio data port. The audio data port can be directly connected to any third party device application as data input, such as iPad. It is designed to be a portable/convenient device. It has built in audible and visual signals for the level of radiation detected. It can be used for nuclear radiation detection and monitoring both indoor and outdoor, as well as in other similar environments. It features automatic data recording. It can continually monitor the radiation and log the data each second into internal memory. When connected to a PC, software can download the radiation history data to the computer and the user is able to analyze those data later. the device is equipped with an USB port, utilized for communication and external power supply/charging of the internal rechargeable battery. The GQ gmc-300e Plus internal rechargeable battery can be charged via a wall adapter or via a car charger through the car cigarette lighter. By using the adapters, continuous data monitoring is possible. Using either power adapter you will not have to worry about the batteries charge condition or any data loss. The main board also has a real time clock on board for time related data logging purposes. The USB port communicates with the GQ gmc-300 soft Geiger counter software and the GQ Geiger counter data viewer software. the GQ gmc-300 soft Geiger counter software's appearance is an exact copy of the gmc-300 hardware human interface. You can download it for free and Explore the gmc-300 user interface before you purchase the real hardware. the GQ Geiger counter data viewer software can download the time stamped radiation (history) data from the unit and save it on a computer for future References analysis.

User questions & answers

Question:	Will this measure the radiation level present in gemstones
Answer:	Not all gemstones emit high enough levels of radiation that can be discerned above ambient levels of radiation and it depends on the actual level of radiation the stone emits. Stones that have been exposed to radiation to change their color will probably not register. I have some uranium marbles that are not detected by this counter. My wife was subjected to a PET scan, last year and read 790 CPM from a distance of 6 feet.
Question:	can I use this to measure Fukushima radiation in seafood
Answer:	I've read articles regarding radiation in seafood indicating the levels you read may be may be misleading. The GMC-300 will measure this radiation. Here in Northern Indiana the ambient level is normally 30 - 40 CPM. As shown in the video, levels in sea life can be higher. http://www.opb.org/news/article/scientists-say-stop-worrying-about-fukushima-radio/ Rick
Question:	I'm a novice wanting to check for radiation levels. Is this device easy to understand? What can I use this for to measure for radiation
Answer:	The GMC-300 is easy to use and low priced as an entry level radiation detector. I use mine to monitor background levels of radiation as I have yet to find an highly active source. Here in central BC, Canada I get 14 to 22 cpm, with a high of 30 cpm. It appears to decrease after a rain fall. The only thing missing with the GMC-300 is a radiation standard but I can understand why.
Question:	Would this device be able to tell if there was leftover radiation from a nuclear blast or contamination? Or radiation from dirty bombs
Answer:	I’m a radiation protection technician. If this device works the way that it says it does then it would still not detect alpha or neutron radiation. If you suspect something making into your food or water then I would be most concerned with Alpha particles and this doesn’t measure those. You shouldn’t have to worry about neutron radiation though and unless you’re using it to measure something you’re ingesting then alpha radiation really isn’t an issue. Geiger- Mueller counter can detect beta and gamma/X-ray radiation. I’d be interested to see how they measure Beta since you really need a gas chamber to measure it accurately. I would be most worried about beta and gamma radiation if you’re talking about an area that may have had nuclear weapons detonates years ago. This claims it can measure for those. If it can it would be a good device to determine if your surroundings are still giving off radiation.

Product features

GQ GMC-300E Plus Geiger Counter Nuclear Radiation monitor Data Logger

This popular Geiger Counter is designed and developed by GQ Electronics(USA). It is a portable and convenient device. It includes all necessary features for nuclear radiation detection. It features automatic data recording. It can continually monitor the radiation and log the data each second into internal memory, and then play back later. It is a useful and easy to use device.

Easy to Read

Large Font mode can be selected from CPM, uSv/h and mR/h anytime.

Easy to Understand

Graphic mode graphs the last 60 seconds radiation changes in real time.

Easy to Get

Text mode provides all information you needed in one screen per selected or predefined.

Easy to Configure

Menu mode allow user to easily set the configuration of the device.

Stand alone mode

Most easy way to work with. Hand held and easy to carry around.

Work with a PC

Download the history data from a PC. Real time monitoring on a PC.

Data collection

Comes with free software for data collection and analyze.

Log data to server

Log the unlimited data to GMCmap server in real time.

Specification

• Radiation detection: Beta, Gamma and X-Ray .
• Sensitivity to Gamma Radiation: 0.1~1 MeV
• Own Background: 0,2 Pulses/s
• Working Voltage: 3.7-5V
• LCD Display: Dot matrix with back light
• Working power: 0.045W - 0.2W
• Power: 3.7V Li-on 14500 rechargeable battery / USB power

GQ GMC300EPlus Fulfill Digital Nuclear Radiation Detector Monitor Meter

The handheld device can be easily carried to fields for close-up radiation monitoring or testing.

Fruit and imported food radiation testing

The device can detect the radiation to determine if the fruit and imported food have been radioactive contaminated. Avoiding contaminated food is crucial to our health.

Seafood radiation testing

Many seafood may be contaminated with nuclear radiation materials. It is useful and safe to check the seafood before we consume it.

Radioiodine (I - 131) Therapy

The GMC-300E Plus can be used to monitor the radiation level during the treatment and keep the family member at the safe distance. It can be used to monitor if anyone is under I-131 Treatment around you.

Product description

RADEX RD1503+ Outdoor Edition geiger counter, high accuracy radiation detector, dosimeter

• UPGRADE Outdoor Edition - better protected
• Combined Beta, Gamma and X-Ray radiation detection.
• Detection range of 0.05~9.99 µSv/h (Micro Sieverts per Hour) or millirems
• Audio alarm - Vibration Alarm - Backlight
• Pre-calibrated, Accurate (+/- 15%), Fast (40 second cycle if low, Immediate if high)

User questions & answers

Question:	Why do they show it in use near hv transformers? does it also detect em emissions in that range
Answer:	No, you would need and EMF (electromagnetic field) detector for that: https://www.amazon.com/Advanced-Electro-Magnetic-Detector-Monitor/dp/B007ZBETWC/ EM emissions are non-ionizing radiation, which means the particles do not have enough charge to cause damage to tissue. Geiger counters detect ionizing radiation, the dangerous kind: Alpha, Beta, Gamma, X-ray, etc. Illustration: https://quartarad.com/wp-content/uploads/2018/10/ionizing-radiation.jpg https://quartarad.com/wp-content/uploads/2018/05/types-of-radiation.gif I hope this clarifies matters a bit!
Question:	Is this detector EMP proof
Answer:	As a former designer of electronic circuits, I can opine with 99% certainty that it is NOT EMP proof. I say that because the outside is plastic (a non-shielding material), and the LCD screen also would not block radiation. I think to add EMP protection would raise the cost considerably! FYI, I store my detector, when not in use, inside a metal container (with other electronics) because of its vulnerability to EMPs.
Question:	What is the difference between this model and the RD1503+ without dosimeter model
Answer:	This model does have the dosimeter function (see "DOSE" on the LCD screen), which means that it can switch between immediate radiation levels ("NOW") and accumulated dosage over time ("DOSE").Very useful when working in environments with even slightly raised radiation levels (warehouses, junk yards, granite canyons, treatment plants, etc.)
Question:	Can it detect all of "alpha", "beta", and "gamma
Answer:	It detects beta, gamma and X-rays. No Alpha because it is redundant and unnecessary. Alpha particles are relatively "large" and won't pass even through a sheet of paper or a layer of skin, let alone plastic casing of a detector. It also emits only a few inches from source. Illustration: http://images.slideplayer.com/32/9849845/slides/slide_10.jpg One would need a special "pancake" appliance to detect it, and those cost up from $ 500. In my opinion, those are only useful for conducting experiments in a lab environment, or under some very specific circumstances. Another reason for not detecting Alpha: nearly every radioactive isotope that emits Alpha will also emit a lot more beta and/or gamma (usually both), which will be detected by the sensor. Hope this clarifies matter a bit.

Product description

Are you looking for the most compact and military level accurate Geiger counter to check radiation, radioactive sources and keep an eye on the nuclear levels around? This SOEKS meter is our newest and smallest dosimeter and uses highly sensitive SMB20-1 Geiger Muller tube and offers the perfect solution for discrete and fast radiation detection. Small and compact, this nuclear radiation detector is capable of finding radiation in objects, environments, and helps monitor radiation dose in an instant.

Every time a nuclear radioactive particle is detected, meaning the atom hits the Geiger Muller tube, you will hear a click familiar with the old Geiger counters and see a red flash in the LED lamp near the radiation sign on the device. It can be easily configured that the device operated without any sound or light, so that you can measure radiation discreetly without drawing attention to places where others might be uncomfortable.

This personal dosimeter is a must-have for personal safety and nuclear disasters like Chernobyl or Fukushima. It gives you fast and accurate reading spanning a range of 0.01 to 999 uSv/h.

Features:

Almost instant detection for Beta, Gamma, and X-ray radiation

Large military grade SBM20-1 Geiger Muller tube along the whole body of the meter provides high sensitivity and accuracy

Dosimeter function shows cumulative nuclear radiation dose absorbed over time with a press of a button

Working time of 100+ hours on a 2 x LR44 batteries make the dosimeter always ready and affordable to use

Visual and audio indication of radioactive particles is turned ON by default for easy testing of the area and objects

Manually set thresholds for radiation background and dose to get alarmed when those are reached

Outstanding detection range in 0.01 uSv/h (micro Sieverts) increments

Package Includes:

1 x Personal Geiger Counter

1 x Manual

2 x LR44 batteries

• PERSONAL GEIGER COUNTER and DOSIMETER - This personal dosimeter is small and compact enough to be on your person at all times and to detect the radiation levels of any object or environment. You can use it for detecting radiation in toys, jewelry, antiques, construction materials, marble, food, and water.
• SUPER FAST DETECTION - This Geiger counter radiation detector almost instantly detects Beta, Gamma, and X-rays to provide you with the most accurate knowledge at top speeds.
• SENSITIVE & ACCURATE - This dosimeter radiation detector is fitted with a large military grade SBM20-1 Geiger Muller tube so as to provide high sensitivity and accurate information with just the press of a button. Visual and audio information is turned ON by default.
• LONG BATTERY LIFE - This radiation meter provides you with a working time of 100+ hours with 2 x LR44 batteries which makes this dosimeter always ready for use. PRO TIP: order extra batteries to replace the originals if the meter does not stay ON.
• IMPRESSIVE RANGE - This digital Geiger counter has an outstanding detection range of 0.01-999 uSv/h. This range is useful for detecting up to 999 Sieverts or 99,900 rem.

User questions & answers

Question:	How does the dosimeter work? Does it have to be turned on to track your dosage? Do you have to carry it at all times for a time period, like a week
Answer:	Great question! Any kind of nuclear dosimeters, including SOEKS 112, have to be turned ON and on the person/in the environment in order to record the radiation dosage. It has to be carried around to accumulate the dose. SOEKS 112 can show real time radiation or the accumulated dose with a single press of a button.
Question:	At what number on the display should I turn and run? Is this the same unit model sold by "Mirasafety
Answer:	You should see numbers below 0.40 uSv/h in the USA for natural radiation background. It doesn't mean you have to run yet but definitely something to investigate as to why the numbers are higher than naturally should be. If you see numbers higher than 1 uSv/h - it's a good idea to increase your pace with the toes pointing away from the object or the area with high radiation. SOEKS is the original manufacturer of this portable Geiger counter, including the ones that are sold by Mira safety. It's always better to get our detectors directly from the manufacturer as we guarantee that they are stored properly and up to date with the latest updates. Regards, Andrew from SOEKS USA
Question:	Will it or any software track history on iOS device
Answer:	No, this is a standalone Geiger counter/Dosimeter that makes and keeps all the measurements on the meter itself.
Question:	Why it's so slow? You can die before you see real radiation numbers
Answer:	When High radiation is detected, you’ll know it right away - there will be a spike in the readings, the audio clicks will become very frequent, and the visual indicator (LED) will blink rapidly. No way to miss that! For subtle changes in the radiation background the maximum time for the most accurate readings takes only 2 minutes, usually less. 120 seconds is not enough time to get a lethal dose even during the Chernobyl disaster. And the best part, that this small Geiger counter (dosimeter) reads up to 999 mSv (999 Sv), while the Geiger counters initially used in Chernobyl only read up to 34 mSv, hence the delay for the alarm and the emergency response.

Product description

RADEX ONE "Outdoor" - geiger counter and radiation dosimeter (radioactivity indicator) is designed to measure ambient ionized radiation types Beta, Gamma and X-ray, radioactivity of materials and products, as well as the accumulated radiation dose received.



Features:



- Beta, Gamma and X-ray detection



- Very fast: immediate result in 10 seconds, best result in 30 secs.



- Compact and portable design



- Same sensitivity and accuracy as a full-size geiger counter



- UNIQUE: Accumulated (not just immediate) dose



- PC connection via USB cord (provided).



- Software (Windows) download from: www.quartarad.com / Support / RD ONE and MR107:

https://quartarad.com/radex-one-data-center/

• Gamma, Beta and X-rays radiation detector, geiger counter (SBM-20-1 Geiger-Muller)
• 10 sec. measurement cycle. Quickest Geiger counter out there!
• USB to PC: Data Recording / Charting Software (download for Windows only)
• Very sensitive geiger counter. Detection range: 0.05~999.0 mcSv/hr
• Easy to operate. Very accurate. Newest geiger counter from Radex

User questions & answers

Question:	Does this detect non-ionizing radiation
Answer:	No. The non-ionizing radiation (light, radio waves, Electromagnetic fields e.g. microwaves) are not detectable by geiger counters. Geigers detect ionizing radiation such as Beta, Gamma and X-ray. Illustration: https://pbs.twimg.com/media/D2vqAz_UwAEUAhU.jpg Detector for non-ionizing Electromagnetic emissions such as microwaves, household appliances and power lines: https://www.amazon.com/dp/B007ZBETWC
Question:	Can this be used to detect radiation in food? I use Apple products, will I get on line support
Answer:	If someone puts a radioactive source in your food you might detect it, but most food is less radioactive then the concrete in the walls of your building. Also food could be used to shield this device from cosmic radiation, which means you would see a lower count rate in the presence of food.
Question:	does this device test NORM or radiation in pipe used in the oilfield business
Answer:	Generally yes, while this depends on radionuclides in such pipe, ie radium, radon, uranium, potassium and thorium. The Geiger detects Beta, Gamma and X-ray radiation, which are emitted by all aforementioned materials except for Radon gas.
Question:	Will there be software available for Apple devices
Answer:	No

Product description

RADEX ONE - geiger counter and radiation dosimeter (radioactivity indicator) is designed to measure ambient ionized radiation types Beta, Gamma and X-ray, radioactivity of materials and products, as well as the accumulated radiation dose received.



Features:



- Beta, Gamma and X-ray detection



- Very fast: immediate result in 10 seconds, best result in 30 secs.



- Compact and portable design



- Same sensitivity and accuracy as a full-size geiger counter



- UNIQUE: Accumulated (not just immediate) dose



- PC connection via USB cord (provided).



- Software download from www.quartarad.com / Support / RD ONE and MR107:

https://quartarad.com/radex-one-data-center/

User questions & answers

Question:	Does this also detect and measure Radon gas
Answer:	Radon gas emits Alpha radiation, which Geiger-Mueller detectors cannot see. The Alpha particles will be stopped by the casing of the detector and will never be counted. If you really want to detect Alpha particles, you need a "scintillation" detector, that will have a microscopically thin window to allow the particles into the detection chamber, typically of an aluminized mylar sheet. This detector states it will detect beta type and gamma / X-ray radiation only.
Question:	what is the difference between this version and the outdoor version that costs $2b more
Answer:	I don't have the outdoor version, but I would expect that it is more ruggedized.
Question:	This is scaled to detect exposure in the µSv range. Can it be switched to detect exposure in the Sv range
Answer:	No, that would not be practical. Sv (sievert) range is abnormally high - it's Chernobyl-level exposure and instant radiation sickness. 1 Sv (sievert) = 1000 mSv (millisieverts) 1 millisievert = 1000 uSv (microsieverts)In most households radiation levels are circa 0.20 uSv/h (microsieverts per hour)Illustrated article with real-life examples is here:https://www.allianz.com/en/about_us/open-knowledge/topics/environment/articles/110407-radiation-how-much-is-harmful.html/
Question:	Will this device be just as effective in radiation detection if it's inside a shirt pocket
Answer:	Yes, the fabric would block little if any background radiation. It has many modes so you can have it display a received dose or the ambient radiation.

Product features

RADEX ONE compact, personal Radiation Detector for everyday life.

Radiation dosimeter is designed to measure ambient ionized radiation, as well as radioactivity of materials and products, and the accumulated radiation dose received.

Exceptionally calibrated, scientifically-tuned engineering equipment for common use.

The newest model from the RADEX brand - since 1992.

Beta, Gamma and X-ray detection - the dangerous ones.

Alpha radiation particles can't penetrate a sheet of paper or a layer of skin. Beta and Gamma (X-Ray) radiation goes though much tougher materials.

RADEX ONE is specifically calibrated to detect and alert about dangerous radiation.

Uses low-voltage SBM-20-1 Geiger-Muller tube (the sensor) for detection. Calibrated with Cesium-137 isotope in our lab.

Ambient Radiation dose and Accumulative dose

One of the great features of this handy device is the Accumulative Dose mode, that shows how much radiation was detected over time, and not just immediate results.

Accumulative dosage is important and a rare feature for radiation detectors: most show immediate radiation levels only, and not prolonged exposure.

See what you have been missing.

Radioactive materials are used in many consumer products. The most common of these is some smoke detectors which use radioactive Americium-241 to detect smoke particles in the air.

Other sources: natural granite, tobacco smoke, medical procedures such as Thyroid Radiation Treatment and contaminated produce.

Normal levels (sea level) are 0.10 - 0.30 uSv/h

Very fast: immediate result in 10 sec, best in 30 s.

PC connection via USB cord (provided)

Extremely sensitive: full-size GM tube inside!

Pre-calibrated and certified.

No additional calibration required for almost a decade (under normal conditions).

Manufacturer direct and factory-fresh.

1 year warranty replacements.

Product description

RD003 lot of 1 , Geiger counter, Beta & Gamma Detector. For any Dossimeter, radiometer. NEW (not used). Tested For sale is lot of 1 new geigers RD003 . Tested. RD003 is a new version and analog of sbm-20 , New Model. Fresh Year of manufacture.

• Voltage of start of counting 340 V Plateau length 360 V - 440 V Maximum Plateau Slope 12.5% / 100 V
• Operating Temperature Range - 40 to + 60 0C Gamma Sensitivity 42 cps/mR/hr Maximal anode voltage 550 V
• Dead time 75 μs Operating Voltage 400 V Life at least 5*109 pulses
• Dimensions: lenth: 95mm diameter: 10mm

Product description

RADEX RD1706 is the new addition to the RADEX family of radiation detectors and monitors. This device can be used not only by professionals working with sources of ionizing radiation, but also by average consumers interested in checking the contamination of places and objects, and knowing the results with higher degree of precision.



RADEX RD1706 is capable of:

increased precision of indications

expanded range of indications (to 999.0 uSv/h)

range of measured Gamma radiation energy: 1-1.25 MeV

range of measured X-ray radiation energy: 0.03-3.0 MeV

range of measured Beta radiation energy: 0.25-3.5 MeV

time of continuous operation: ~500 hours

able to register x-ray radiation



This model uses two SBM20-1 type Geiger Muller counters, one each for beta- and gamma-rays. The use of two separate sensors allowed us to reduce time of observation to 26 seconds while improving accuracy and precision of results. The range of indications was expanded 100 times, compared to RADEX RD1503.



RD1706 can register the value of a doze-rate as high as 999.0 uSv/h. Time of observation automatically adjusts from 26 seconds to as low as 1 second when presence of strong radiation sources is detected. This is necessary to ensure safety of professionals working with or operating ionizing radiation sources.



Most other features from the RADEX family were also retained, i.e. the usual frame with a large LCD screen, three operation buttons, battery charge indicator, display backlighting and personal settings like threshold alarm activation, alarm strength, backlight option.



Professional, rugged detector that is incredibly simple to use and understand.

User questions & answers

Question:	Hello, if i buy this product, could you give me a calibration certificate
Answer:	These devices do not have individual calibration certificates. In this respect they are like thermometers. The model line undergoes certification and random testing by a third-party lab in Germany. CE certificates are issued. We can email testing protocols (in German) and the CE certification. These units are calibrated at our factory using Cs-137 isotope. A QC engineers tests and signs off on every unit. The initial setup lasts several years.
Question:	Can it distinguish the beta radiation reading from gamma radiation? If not, what is the purpose of dual GM tube sensor
Answer:	You can not distinguish with this model. It shows the highest value, be it Beta, Gamma or X-rays.For separate readings you would need the RD1008 - The best model we havehttps://www.amazon.com/RADEX-Quarta-Rad-Accuracy-Professional-Radiation/dp/B0053AJ45O/The purpose of dual sensors in RD1706 is increased sensitivity and accuracy for lower dosage.It is also significantly faster than 1503+ and reads up to 999.99 uSv/h as opposed to 9.99 uSv/h on 1503+
Question:	Does it work on food
Answer:	It is a radiation detector, so yes it will work on food. It will detect the presence of radiation within the limits of the device. That is to say that extremely low levels will not be detected; that takes special equipment.
Question:	How does it compare to the RADEX RD1212? The units are within about $15 of each other. Why this one over the RD1212? I am primarily interested in testing food and outside of small liquid containers
Answer:	As I don't own teh RD1212, I am not able to make compare the two.The 1706 seems easy to use once you overlook the unusual phrasing in the operators manual. I tested in on an onld radium dial watch and it worked well in all alerting modes. The unit does seem well built and compact.

Product description

Working Voltage 380...460V Working current 0,015...0,02mA Range of dose power 300R/h Plateau Length 80V Gamma sensitivity 188...235 Pulses/s/R/h Plateau Slope 0.25% / 1V Inherent counter background (cps) 0.2 Pulses/s Working Temperature Range -20 to +60 С Length ~55mm Diameter 10mm Dosimetric characteristics of products si3bg counter: - the count rate (N) at 3.6 V Mr/HR - from 48 pulse/min to 72 pulses/min.; - dose rate (P) - 300 R/h; - maximum dose rate (RMA), short - 900 R/h. The voltage at the anode: - pulse mode - 380 V to 460 V; - in current mode - from 382 To 398 V. Operating current SI-3BG - from 15 µa to 20 µa. Case - glass. The cathode is a grid of Nickel wire. Operating mode - current and pulse. Overall dimensions: - diameter - not more than 10 mm; - length - no more than 55 mm. Weight - no more than 25 g.

• Small! Just 2 inch length
• Durable! Not like thin film metal in SBM-20 or STS-5
• Gamma sensitivity 188...235 Pulses/s/R/h
• Low power consumption 0,015...0,02mA
• Working Voltage 380...460V

Product description

ATTENTION Software and Warranty available only for units bought from Quarta-Rad, Inc.



RADEX RD1212 - Radiation Detector / Geiger counter is designed to evaluate background radioactivity levels of the environment around you as well as check radioactivity of materials and products.



– measures radioactivity

– stores measurement results in memory

– data transfer to PC or Mac

– With one click – Assign geographic Location to your data and share it

– self-testing

– Time and Date functions

– audible alarm

– vibration alarm

– integrated flashlight

– multilingual (Eng, De, Fr, Rus, Jp)

– One year Manufacturer's Warranty included (authorized resellers only).



CD is no longer included.



This is the newest geiger counter model from the Radex brand. Previous models RD1503 geiger coutner and RD1706 geiger counter became quick favorites due to their proven accuracy, friendly simplicity and how affordable they are.





And now: RD1212

The latest model - the best geiger counter in the series.



SIMPLE TO USE - It's just one button! Flip it on and let it measure. No calibration required.



ACCURATE - Radex knows their Geiger-Muller counters. Units have been tested in Japan and compared favorably to competition.



FEATURES - A flashlight, a USB - to PC/MAC connection, Map & Chart Software (download), vibrating alarm, Language options.



COMPACT - RD1212 is the size of a smartphone: small, light, comfortable to handle.



Manauals, Software and Support: www.quartarad.com

User questions & answers

Question:	does it detect rad in food
Answer:	Would not be sensitive enough to detect low level radiation as you would find in food.
Question:	Is this item itself radioactive? I don't know much about Geiger counters. Could holding this device expose me to radiation
Answer:	No. No Geiger counter is radioactive itself, it just senses radiation. Much the same way that a harmless voltage meter determines how much voltage something is generating. The meter itself does not contain or produce any electrical voltage, or the way a thermometer measures heat. The thermometer doesn't contain or produce any heat, it just monitors it. It's the same with the Geiger Counter. If there's radiation present it senses it and determines how much. You will be perfectly safe handling it. Do not worry.
Question:	what is useage? nuclear detector? that will be 1 time use then no need to test again
Answer:	Wanted to check on local radiation levels! Continued radioactive releases from Fukushima nuclear facilities in Japan with the potential of still another major explosion and meltdown of reactor Number 4, poses a real threat to Hawaii. Local government does not provide information on this issue. You can also access a lot of information in other areas that use this detector and radiation levels in other areas on your computer. It gives me peace of mind that I can detect possible contamination in my food. The pacific ocean is being poisoned by Fukushima radioactive discharge, and fish will bio concentrate radioactive materials! Seafood becomes a concern. As time goes by, these issues are becoming more concerning! News often is suppressed to prevent public panic. I hope this helps answer your question.
Question:	What are the battery(s
Answer:	Batteries are the small AAA in size. There are two of them for powering the unit.

Product features

RADEX RD-1212 Advanced Radiation Detector for common use.

Radiation Detector is designed to evaluate background radioactivity levels of the environment around you as well as check radioactivity of materials and products.

Exceptionally calibrated, scientifically-tuned engineering equipment for common use.

Extremely accurate - USB connection to PC - Multi-lingual - Fast - Easy to use

Beta, Gamma and X-ray detection - the dangerous ones.

Alpha radiation particles can't penetrate a sheet of paper or a layer of skin. Beta and Gamma (X-Ray) radiation goes though much tougher materials.

RADEX ONE is specifically calibrated to detect and alert about dangerous radiation.

Uses low-voltage SBM-20-1 Geiger-Muller tube (the sensor) for detection. Calibrated with Cesium-137 isotope in our lab.

With one click – Assign Location to your data on Google Maps

RD1212 connects to your PC or Mac via provided USB cord to transfer data directly into on-line browser application to: Map - Chart - Share and Save recorded data.

See radiation data collected by other users at our website

See what you have been missing.

Radioactive materials are used in many consumer products. The most common of these is some smoke detectors which use radioactive Americium-241 to detect smoke particles in the air.

Other sources: natural granite, tobacco smoke, medical procedures such as Thyroid Radiation Treatment and contaminated produce.

Normal levels (at sea level) are 0.10 - 0.30 uSv/h

Simple To Use - It's just one button! Flip it on and let it measure. No calibration required.

Features - A flashlight, a USB - to PC connection, Map & Chart Software (download), vibrating alarm, Language options (5 languages).

Compact - RD1212 is the size of a smartphone: small, light, comfortable to handle.

Pre-calibrated and certified.

No additional calibration required for almost a decade (under normal conditions).

Manufacturer direct and factory-fresh.

Product description

Self-quenching halogen pulse ionisation chamber for detecting alpha, beta, gamma and x-ray radiation. In metal housing with mica window, removable mounting clamp with shaft. Long plateau length. Filling: Neon/argon mixture, halogen as quenching agent. Cathode dimensions: approximately 39 x 14 sq mm. Window: mica, 9mm diameter. Mass per unit area: 1.5 - 2.0 mg/sq cm. Plateau length: 400 V - 600 V. Operating voltage: 400 - 600 V (recommended: 500 V). Relative plateau slope: 0.04 percent/V. Dead time: 90 microseconds. Limiting resistor: 10 Megaohm, integrated in holder. Shaft: approximately 100mm x 10mm diameter. Approximately measures 25mm diameter by 85mm height.

• Filling: Neon/argon mixture, halogen as quenching agent
• Window: mica, 9 mm diameter
• Operating voltage: 400 – 600 V (recommended: 500 V)
• Limiting resistor: 10 Megaohm, integrated in holder
• Approximately measures 25mm diameter by 85mm height

Product description

Quarta-Rad Inc, the manufacturer of Radex brand electronics announces the release of the brand new RD1212-BT geiger counter!



Radex 1212-BT is the next-generation geiger counter based on Quarta-Rad's top-seller RD1212 series and combines it with cellular technology through the use of Bluetooth 4.0



Via the application RadexRead, downloaded for free from App Store or Google Play, Radex customers can now combine radiation readings from Radex 1212 BT with GPS coordinates for their private use or share it with other environmental enthusiasts.



Unlike other similar products on the market, Radex 1212 BT is priced to make this technology affordable to everyone concerned about potentially harmful radiation effects.



RD1212-BT geiger counters links to your Android / iPhone smartphone or tablet through our free app called RadexRead.



The geiger counter takes readings continuously, as it transfers them in real time to your phone.

The app finds your location on the map and assigns the received readings to that spot.



- Load the RadexWeb app onto your phone, link it with your 1212-BT geiger counter and just go for a walk or a drive! The radiation detector will continuously obtain data along your path, with each data point showing the level of radiation at that location.

– measure ionized radioactivity

– store measurement results in memory

– self-testing

– Time and Date functions

– audible alarm

– vibration alarm

– integrated flashlight

– multilingual (English, German, French, Russian, Japanese)

– One year Manufacturer's Warranty included (all warranty claims are processed by authorized resellers only).





Accurate – Easy to use – Rugged – Connected.



The best geiger counter for the common use.

• Advanced geiger counter with Bluetooth link to smartphone
• High-accuracy sensor SBM-20-1. Pre-calibrated
• Beta, Gamma and X-ray radiation detector
• Temperature and Air Pressure in real time
• Google Play / App store application for mapping and sharing

User questions & answers

Question:	Does this unit have its own memory, and how big is it? How long can it record
Answer:	Yes, it does. It can store up to 160 readings. These readings can be every minute, every 3 minutes, 5, 15, 30, every hour and so on.Typically though, the Bluetooth version is linked to the Android app and transfers data in real time, without storing it.
Question:	as a non smart phone user...is this useable without a smart phone
Answer:	Yes, This unit works by itself as a radiation monitor. I don't know if the unit can collect reading data to itself because I cannot see reading log from the unit, however the smart phone with Bluetooth (and apps) can show/set the reading logs (data collection interval), location.
Question:	Will there be new software updates that use the bluetooth feature
Answer:	Possibly, we update software all the time. What additional features do you have in mind?
Question:	Can this be left on all the time? aka, can i plug it in to a usb device and leave it home? also, can the app send an email or text on detection
Answer:	It can be on all the time. The trick is to plug it into USB and remove the batteries. The device prefers batteries to other power source, hence even if it's plugged via USB, if it has batteries - it will drain them. No email or text yet, but that is an excellent suggestion.

Product description

The SBT-10A is a Geiger-Muller tube containing 10 separated detectors, and a huge mica window which allows detection of α, β (hard and soft) and γ radiation. Basically it for soft beta radiation by datasheet. The STB-10A tube is designed to be operated in various PROFESSIONAL radiometric devices. It has very HIGH SENSITIVITY (efficiency of registration) in comparison to other counters. Designed for registration of beta radiation with energy from 0.156 MeV

• Voltage of start of counting: 260-320V Operating Current each section: 0.3-1.5mkA Recommended Operating Voltage: 390
• Plateau Length / Inclination: 80V / 0.3% / V Sensitivity from Cs137: 332.5-402.3 Pulses/mkR at Source = 4mkR/s Pulse amplitude - 5V
• Resistance of base = 10(in step 10)Ohm Beta radiation detection efficiency - 35% Own Background (Pulses / s): 2.17 at T=55+-3C
• Working range (mkR / s): 0.003 - 20 Dimensions: 88mm, 68mm, 38mm

Product description

The PRM-9000 includes the same two-inch (50.8 mm) pancake Geiger detector tube that is the gold-standard for surveying areas for potentially harmful ionizing radiation levels and for detecting radioactive contamination of packages, items, equipment and people. The instrument is suitable for regulatory inspections, and for the detection, measurement and monitoring of broad spectrum, low energy radionuclides, including Naturally Occurring Radioactive Material (NORM). The two-line, alphanumeric display supports both English and Japanese languages promoting ease-of-use and concise measurement. The display is backlit to support low-light conditions. Using only one key, users can scroll through several screens that display present, average, maximum and minimum measurements in uR/hr, mR/hr, uSv/hr, Counts per Second (CPS) or Counts per Minute (CPM). The PRM-9000 instrument not only records the maximum radiation measured, but also displays the time and date at which the maximum occurred. Battery life is over 4-years under normal conditions from a single, readily-available, 9-volt lithium battery that is user-installable without soldering. Standard alkaline 9-volt batteries available everywhere provide over 2-years of life under normal conditions. With over 100K bytes of data logging memory included, the PRM-9000 can autonomously store up to 91,466 minutes or hours of time-stamped measurements. These measurements can then be uploaded to a PC in CSV format for analysis. A user-settable dose rate alarm sounds an audible alert when the measured radiation level exceeds that of the alarm level setting. Designed by Mazur Instruments and manufactured in the USA, the PRM-9000 includes abundant I/O options including support for headphones, external speakers, external power and PC/Mac USB data exchange (requires optional 3.5mm to USB adapter cable). Minimum energy sensitivity alpha (2.5 MeV), beta (50 keV), gamma/X rays (10 keV). Gamma sensitivity: 3,500 CPM/mR/hr (Cs-137).

• American made LND 7317, Two-Inch Pancake GM Tube; detects alpha, beta, gamma and x-radiation
• Scan items for radiation and detect Naturally Occurring Radioactive Materials (NORM)
• Measurement Range 0.001 to 125 mR/hr (0.01 to 1,250 uSv/hr) with +/- 10 percent typical accuracy
• Monitors Elapsed Time, Average, Minimum and Maximum dose rate in uR/hr, mR/hr, uSv/hr, CPS or CPM
• LED, beeper and headphone jack; internal data logging, timed measurements, dose rate alarm

User questions & answers

Question:	Can I carry this through airport security on a somewhat regular basis (e.g. twice a month
Answer:	Generally, yes. I have done so many times, in carry-on, in fact. in the US, there is no ban on Geiger counters. But take your Invoice or Operation Manual with you as a identifying criteria in case TSA chooses to scrutinize it.
Question:	How often does this need to be sent out for calibration and what is the cost to have it calibrated
Answer:	You can calibrate yourself if you buy a known source of radioactive material. I don't think it needs it unless your exposing it to high levels often.
Question:	Can this Mazur Geiger counter measure radioactivity in a zirconia or porcelain dental crown or implant either already in the mouth or outside of it
Answer:	The Mazur 9000 is very sensitive. A dental crown is difficult to get to, and proximity increases the radiation collecting on the disk, especially gamma (on the back of the instrument is a 1 inch disk which generates the radiation signal). That being said you will get a reading from an open mouth, or thru cheek if the radiation is strong. However, very low concentration (100 Bq/kg) of say cesium-137 will not produce a signal above background radiation.
Question:	Would like to carry the detector with me in my purse. Is it as durable as say a cell phone? Or very delicate
Answer:	The instrument is fairly rugged but is obviously larger & heavier than a cell phone....The unit comes with a protective plastic bag which I would use if stored in a purse....Bottom line is yes, you can carry it in a purse...

Product description

TERRA-P is a prime necessity if you: take care of your health consume healthy food strive to protect your family spend a lot of time outdoors (fishing, hunting, hiking etc.) spend a lot of time traveling deal with building materials possess real estate TERRA-P is used to: control personal radiation safety of the user; carry out radiation monitoring of: apartments and offices, items of everyday use, clothes, means of transportation, bank-notes, building materials, ground surface of infields, food items (especially berries and mushrooms). Purpose of Use Measurement of gamma radiation ambient dose equivalent rate (DER). Measurement of gamma radiation ambient dose equivalent (DE). Evaluation of surface contamination by beta radionuclides. Clock, alarm clock. TERRA-P Features Three independent measuring channels with alternate indication of data on the single liquid crystal display Built-in gamma, beta sensitive Geiger-Muller counter Automatic setting of measurement intervals and ranges Audio signaling of each detected gamma-quantum or beta-particle Programming of audio alarm threshold level of gamma radiation dose rate Liquid crystal display Two AAA size batteries Four-level indication of battery discharge Shock resistant body Small weight and dimension parameters Delivery Kit MKS-05 “TERRA-P” dosimeter-radiometer; operating manual; leather case; packing box.

User questions & answers

Question:	is the operating manule in english
Answer:	Yes, English manual, and appearance is also in English. made in Jule 2015. Regards
Question:	can it be used as medical xray personal dosemeter
Answer:	More no, than yes.It only shows the current radiation.With the personal use when finding constantly near the radiation I would Recommend another device. It can show accrued radiation dose. In this devise, it will be easier to know how much you get "Gy" in the year.You can choose one of thesehttp://www.amazon.com/Terra-P-Dosimeter-radiometer-MKS-05-household-use/dp/B004XF1M8W/ref=aag_m_pw_dp?ie=UTF8&m=A21R3WO10DX41Ohttp://www.amazon.com/Iboxstore%C2%AE-RADIATION-Geiger-Counter-ECOTEST/dp/B00CFKQNP4/ref=aag_m_pw_dp?ie=UTF8&m=A21R3WO10DX41O
Question:	Does this doismeter detect negative ion? like those air purifier that emit negative ion
Answer:	0.65 uSv/h is far to hight number it normally is 0.1-0.2uSv/h. Yes there is some source of radiation in your office. What is the level outside of your office ?Have you tried to remove negative ion air purifier from your office and complete measurement again ?
Question:	Where is it made? When -- what year -- was this model first produced
Answer:	This Geiger Counter is made in Ukraine by Ecotest company, professional manufacturer of radiation detectors. This model is in the market from 2007.