10 best geiger mullers

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

France released, PAL/Region 0 DVD: it WILL NOT play on standard US DVD player. You need multi-region PAL/NTSC DVD player to view it in USA/Canada: LANGUAGES: French ( Dolby Digital 2.0 ), English ( Subtitles ), German ( Subtitles ), SPECIAL FEATURES: Cast/Crew Interview(s), Interactive Menu, Making Of, Short Film, Trailer(s), SYNOPSIS: German filmmaker Vincent Dieutre is accompanied by a close friend's teenage son on a trip to Berlin and in the process reminisces about his life as a gay man in his 2003 autobiographical documentary entitled Mon Voyage d'Hiver (My Voyage in Winter). Dieutre and his traveling companion, Itvan, visit numerous friends and landmarks, all holding special meaning to the 40-year-old filmmaker as they make their way to the German capital. As the pair grows closer as friends, Dieutre also takes on a paternalistic relationship with the boy as he details his own journey of self discovery -- partially to assist Itvan with his own adult transformation, but also as a means for Dieutre's own legacy to endure. My Voyage in Winter was selected for inclusion into the Forum Program of the 2003 Berlin International Film Festival. SCREENED/AWARDED AT: Berlin International Film Festival, ...My Winter Journey ( Mon voyage d'hiver )

Product description

The GQ GMC-320-Plus digital Geiger Counter is the latest model developed by GQ Electronics LLC, USA.

As an enhanced version of GMC-300E plus, it has larger internal flash memory to facilitate data processing capability. It also has temperature sensor & electronic gyroscope, LCD contrast control, front LED indicator, analog data port output, new graphic type.

This product can be used for industrial, commercial or test equipment, such as universities, laboratories, environment evaluation measurement, hospital research, scientific analytical applications, antique evaluation, building material testing research and so on.

Comparing to other brand products, the most prominent advantages of this product are: having most features and cost effective . It also has unique features, such as, record data first play it back later; open protocol for easy application integration; visualize real-time graph, data Logging.

Portable and convenient with built-in audible and visual signals, it features automatic data recording. It is able to continually monitor the radiation and log the data each second into internal memory. When connected to a PC, GQ software can download the radiation history data to the computer and the user is able to analyze those data later.

The device uses USB port for communication and power. The internal battery can be charged via wall adapter or car adapter. Using the adapters, continuous data monitoring is possible and no worry about batteries charge or any data loss. The main board has a real time clock for time related data logging purposes.

The USB port communicates with GQ GMC-320 Plus Soft Geiger Counter software and GQ Geiger Counter Data Viewer software. For professional data logging, an more advanced version, may be purchased at low cost from GQ.

User questions & answers

Question:	Does this unit audibly click? I want a GC for field testing minerals so the tube must be near the side and otherwise suitable for prospecting
Answer:	Yes. The click sound is same as traditional Geiger Counter sound in movies.
Question:	Whats the difference between this and the gmc300eplus
Answer:	almost nothing according to specs. Mine isn't due for 2 more days, so no hands on yet.
Question:	Can it tests food
Answer:	No, this would not be suitable for testing food. You might want to look at the Soeks EcoTester Radiation and Nitrate Tester.
Question:	Is this device emp shielded? eg, can it still be used post a nuclear blast
Answer:	I don't know. I use it to measure radiation from rocks and orange fiesta wear dishes. If there is a nuclear blast your geiger counter will probably be melted and you will be vaporized.

Product features

Popular Model Developed by GQ Electronics LLC, Seattle, USA

This GQ GMC-320 plus Geiger counter is a ready-to-go portable nuclear radiation detector monitoring instrument and an enhanced version of GMC-300E.

This product is a useful tool to visualize real time radiation, it has wide range of applications:

Not only to alert while high dose of big incident happen, like Fukushima nuclear plant, but also sensitive enough to prevent from harmful radiation background around you and protect your health daily.

It is also can be used for industrial, commercial or test equipment, such as universities, laboratories, environment evaluation measurement, hospital research, scientific analytical applications, antique evaluation, building material testing, space radiation, air industrial and so on.

GQ GMC-320+ is an easy-to-use model. Comparing to other brand products in the market, the most prominent advantages of this product are: having rich features and high affordable.

Key/Unique Features

• Two versatile mode: unit alone or together with PC
• Press the right button, the unit turn on, reading shows up in a few seconds
• Date, time, battery icon on the LCD display
• Real-time Graphic, Text and Large Font mode. Zoom feature
• Built-in audible and visual signals to alert
• Dot matrix LCD digital display with back light (contrast, brightness adjustable)
• Rechargeable battery included. Chargeable via USB or wall or car charger
• Data logging feature, record data first and process or play later
• Standard Data viewer software included for free.
• Stay connected with Geiger Counter World Map website

GQ GMC-320+ Build

• High sensitivity M4011 installed (changeable other tube)

• Build-in battery charging circuit

• On-board temperature sensor & gyroscope

• One megabytes on-board flash memory for history data storage

• On-board speaker.

•LED indicator alarm & audio output can connect to cell phone, analog audio port for headphone

· Open protocol

• Continually monitor the radiation and log the data each second into internal memory. When connected to a PC, GQ software can download the radiation history data to the computer and the user is able to analyze those data later.

• Uses USB port for communication and power.

Specification

• Radiation detection: Beta, Gamma and X-Ray
• Detectable Energy Range: 0.1~3.0 MeV
• Own Background: 0,2 Pulses/s
• Working Voltage: 3.2-4.0VL
• CD Display: Dot matrix with back light
• Working power: 0.045W - 0.2W
• Power: 3.6V/3.7V battery / USB power
• Main unit size: 5 x 2.8 x 1 inches
• Weight: 4 oz
• Automatic data recording.

Support

• Download 1:1 simulation software let you experience the device UI operation before make purchase decision.
• User-end firmware upgrade.
• GQ online support community forum.
• USA service center
• Free software as well as professional data logging software is available.
• Accepts both rechargeable and non-rechargeable 3.6V/3.7V batter

What is nuclear radiation?

As radioactive material decays, the energy released (Nuclear Radiation) into the environment. It will harm a body that is exposed to it. It can directly kill cells, or it can cause mutations to DNA. If those mutations are not repaired, the cell may turn cancerous.

The common source of nuclear radiation can be: Leaked dust of nuclear power plan,nuclear weapon explosion,X-ray machines,,nuclear waste materials ,Iodine 131 medical treatment patient or animal,contaminated fruit, seafood,,Ionizing smoke detector etc.

Monitoring radiation from a I-131 treatment patient

Patients who need to know the radiation level after radioactive iodine treatment are advised to carry a GQ GMC-320 Plus. This will let patients keep a safe distance to other people. The patients may also need to know how long they can travel, Radiation detection devices used at airports and federal buildings may be sensitive to the radiation levels present in patients up to three months following treatment with I-131.

Fruit radiation detecting

To avoid contaminated import fruit, the GQ GMC-320 will let you know if the fruit has been contaminated.

Seafood testing

Seafood always be the first victim of the nuclear power plant disaster. Always do the radiation testing on all sea food from the disaster area. So that to avoid contaminated sea food.

Product description

The Ranger Exp offers maximum performance in a lightweight, rugged solution for using your survey meter in the field. The Ranger Exp is designed specifically for individuals operating in tough environments. The small, handheld unit offers excellent sensitivity to low levels of alpha, beta, gamma, and X-Rays. The digital readout is displayed with a red count light and a beeper sounds with each count detected. Other features include an adjustable timer, selectable alert, and with the free observer USB software family, you can download your collected data, set alarms, and calibrate your meter.

• Excellent sensitivity to alpha, beta, and gamma
• On-board memory to record collected readings
• User programmable alerts and timer
• External probe for flexibility
• Free observer usb software
• Now With Bluetooth and Free Observer BLE App

User questions & answers

Question:	does this have a mica window on the back? or is the only detector in the probe
Answer:	The clean light comes on when its time for you to clean it. The machine does that, not you.
Question:	Is this the follow-up model of the inspector exp
Answer:	Since I don't smoke I am unable to provide a positive or negative answer with certainty. But I will say that this product is a very effective air purifier and I am extremely pleased with it. It does not require filter replacement. It only require the stainless steel blades to be wiped clean once a month and one can see how the particles of dirt and bacteria have adhered to the "blades".
Question:	external probe included
Answer:	No. No filters. Easy to clean with a damp cloth.
Question:	Does this unit use decimal counts per second, or only whole numbers
Answer:	we haven’t had any problems. we have house plants and start spring plants.

Product description

This is the iconic SBM-20 Geiger-Muller Tube used in many DIY Geiger Counter projects. This tube is sensitive to beta and gamma radiation. Each tube is tested and carefully packaged.

• This popular tube is used in many DIY Geiger Counter projects.
• Sensitive to beta and gamma radiation.
• Each tube is tested and carefully packaged.

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

ATTENTION:   As of August 1st, 2013, Quarta-Rad upgraded RADEX 1503 to RADEX 1503 Plus. Upgraded firmware, additional features, and cost the same as RADEX 1503. Don't be fooled by online vendors selling old and unsupported RADEX 1503 model as new. When you buy RADEX 1503 online, make sure it is RADEX 1503 Plus (Radex 1503+)

Now there is a better, stronger and more advanced version of our best-selling workhorse – the RD1503.

Ever since the introduction of the original RD1503, customers have been asking for additional functions and requested certain improvements on the existing design. We have listened and incorporated many new capabilities into RD1503+:

New and Improved Features of RADEX RD1503+



  + Graduated change of a threshold signal in the range from 0.10 to 0.90 µSv/h with an 0.10 µSv/h interval (available in individual settings).



  + Value of the background dose rate is saved even when the device is turned off.



  + Now displays the difference of the dose rate between the averaged and background values.



  + Includes vibration signal and audio alarm (both adjustable).



  + Added animation of the pressed command button (the icon of the button starts blinking on the display).



This new device allows a quick and easy way to check radiation background of top soil, non-edibles and interior premises.

The quality of indication of any dosimeter depends primarily on the built-in detector of ionizing radiation. RADEX RD1503+ contains a low-voltage SBM20-1 type Geiger-Muller counter of beta- and gamma-radiation which is found used in professional dosimetric equipment.

An expert scientific tool that’s made for an average Joe.



Quick, Simple, and now better than ever!

User questions & answers

Question:	where is this product poduced and manufactured
Answer:	According to the radiation certificate that is included in the package, the RD1503+ monitor is manufactured by the QUARTA-RAD Ltd company in Moscow, Russia. http://quarta-rad.ru
Question:	Is this something i can use in a supermarket to check food for radiation? i don't trust things coming from the pacific ocean because of fukushima
Answer:	Testing food in general is one of the most common questions we receive and also happens to be one of the most difficult ones to answer. In short: - Can food be tested with a hand-held Geiger Counter? Yes. - Will it detect elevated levels of radioactive materials, if present? Yes. - Is it absolutely safe to eat your fish after you scanned it and the result was negative? No, not necessarily. This is not a sensitivity issue, but is simply because radiation emitted from a tiny contaminant will be masked by the natural background radiation that's all around us. Technically speaking, everything is radioactive, even we are. So it would be like looking for a specific water drop in a pond. If the natural background radiation around you is .10 uSv/h and contaminant in the fish emits .02 uSv/h, then geiger counter will naturally continue showing .10, because that's how many radiation particles it is detecting in your immediate vicinity. This means that no matter how sensitive, expensive or calibrated your equipment is, the only way to be absolutely sure that food is safe would be to test it in a lab, where a piece of produce is placed inside a special lead capsule that isolates it completely from any background radiation. There is a lengthy scientific procedure of setting up such tests. Many manufacturers will claim that their detectors will works just as well, but as you can clearly tell, that is a marketing scheme. The only sure way of accurately testing food for radiation is in a lab. Period. Having said that, there are still ways to considerably improve you chances of detecting contamination. Here are some practical tips in getting the most out of your RADEX geiger counter. Whenever anything is measured for radiation, the mass / size of the object being scanned matters. Don't try to detect radiation in a single berry, a mushroom or a cup of water. Unless these are highly contaminated, there would be few particle streams emanating from a smaller volume hence the chances of detection are that much lower. Instead, try scanning an entire basket-full of produce, or a tank of water - the number of particle sources would be that much greater and easier to detect. If it's fish your are measuring, try to have as much of that tuna as possible. Turn the unit on and place it right next to the object (you can use a simple plastic bag to protect the unit - that won't effect sensitivity) for about 40 seconds. Then move a few inches to the side, and so on: continue displacing the detector by the distance of its width every minute or so, moving alongside of the object being scanned. So basically from head to tail. That would give you the highest chances of detection. However, please keep in mind, that even if after scanning it this way, there is still a chance that it may contain radioactive elements that are above the permissible levels for digestion. This is why we NEVER recommend to use Geiger counters for food testing unless in dire situations. We hope this clarifies matter a bit.
Question:	what are the minimum sensitivities for beta/gamma? IE: how many KeV in those bands
Answer:	Gamma: 0.1 - 1.25 MeVBeta: 0.25 - 3.5 MeV
Question:	Does it use a cylindrical GM or a PANCAKE GM tube
Answer:	Cylindrical low voltage SBM20-1 tube. Only does Beta and Gamma. Its does work well. A nuclear plant recently had a leak about 245 miles north of me, and it went bats as I was downwind and it showed elevated radiation at 6 times my normal background for 45 seconds so I know I caught a wisp of it. This is not professional lab equipment, but is good value for what I paid for it. The battery life is awesome too with LSD rechargeable NiMH AAA batteries. I run it 24/7. At this price, I do not really care about tube life.Just do not expect professional grade results from it, but it is good enough and a good value for the money.

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.