The ENV RD-100 was born out of more than 20 years of practical experience of being an EHS person,  supporting EHS individuals and raising EMF awareness. We realized that users need a meter that is extremely simple to operate straight out of the box, yet powerful enough to deliver professional-grade diagnostics when locating radiation sources, and mitigating EMF exposure.

Dual-Mode Functionality: Tailored for Every Level of Expertise

1. Beginner Mode (Instant Awareness): The radiation level is instantly represented by 4 clear LEDs (Green, Yellow, and two Reds). The threshold levels for these LEDs are configured based on our and others understanding of the possible health risk, rather than lax government standards, giving you instant peace of mind without needing to interpret complex scientific formulas.

2. Advanced Mode (Scientific Precision): A large, detailed LCD screen displays real-time data:

   • Peak values (re-calculated every half-second) and maximum peak since power-on.

   • Average values (30 seconds average).

   • Duty Cycle measurements (the percentage of active transmission time) in RF mode.

   • Signal frequency in low-frequency magnetic (LFM) and electric (LFE) modes.

   • A 30-second history graph showing real-time fluctuations.

Key Features and Practical Benefits:

• Joint Mode (One-Screen Scan): View all three EMF types of EMF (RF, LFM, LFE) simultaneously on a single screen. This allows you to quickly scan a room/car/apartment/office and immediately spot which type of field is elevated.

• RF Modulation Display: View on the meter’s screen (and hear via the speaker) the wave shape of the RF signal over a 100ms or 0.5s window, assisting in identifying the exact nature of the wireless source.

• Data Logging via PC (Optional): Connect the meter to a PC or Android device using a specialized active USB Serial cable (sold separately) to record and analyze measurements over hours (perfect for overnight bedroom monitoring).

• Long Battery Life: Runs on 2 standard AA batteries, offering up to 20 hours of continuous operation (when using quality alkaline batteries).

• Built to Last: Comes with a custom protective carrying case for safe storage and travel.

• Made in Israel: Proudly developed, manufactured, and shipped from Israel.

Technical Specifications:

• Measurement Types: Radio Frequency Radiation(RF), LF Magnetic Fields(LFM), LF Electric Fields(LFE).

• Max Sampling Rate: 60,000 samples per second.

• Display: Graphical LCD + 4-LED quick indicator.

• Audio: Internal speaker for RF modulation feedback (RF sound signature).

• Power: 2x AA batteries.

• Warranty: 2-year limited warranty.

Basic Features of the ENV RD-100

• RF, LFM, LFE measurement.
• 4 indication LEDs.
• Detailed Display
• Audio feedback for RF
• RF Modulation mode
• Joint mode (all radiation types on the same screen)
• Fast sampling rate
• Powered by 2 AA batteries (not included but very easy to get, cheap, & can last for up to 20 hours of work time with this meter).
• Including a Case
• Optional – PC connection and measuring/recording software with an optional USB active data cable.
• Developed by www.envirosens.com
• Defined, customized, QA, and approved by www.norad4u.com
• Made in Israel
• Sent from Israel
• Model Year 2025
• 2-years limited warranty by www.envirosens.com

Strong points of the ENV RD-100

• Very fast sampling rate- Most important!
• Easy to operate and read
• Both RF, LFM & LFE
• Joint mode allows to see both RF, LFM, and LFE values
• Advanced features for advanced users via Mini USB connection to a PC
• Audio Feedback helps you to identify the source more easily
• Modulation mode shows the RF signal for 100mS or 500mS. This helps you to identify the source more easily
• Long battery life, operates with cheap and easy-to-get batteries.

Limitations 

• a Single-axis meter (most RF meters for home use are)

Usage 

• For RF measurement, hold it vertically (usually)
• For ELF measurement, measure in X,Y and Z axis.
• Measure RF and ELF levels.
• Track and find EMF sources.
• Find hot-spot and RF penetration points to your house.
• Find a safe distance from LFE and LFM sources.
• Test EMF protection.
• Can detect RF sources like: WIFI, DECT, WIMAX, LTE, UMTS, CDMA, GSM, BLUETOOTH, ZIGBEE, Cell phone mast/antenna ( 2G,3G,4G, low bang 5G), Smart meters, Radar, Microwave ovens, wireless PC and Tablets, routers and other RF sources.
• Can detect ELF sources like: Power lines, power converters, electric infrastructure, power cabinets and fuse boxes, electric motors, electric components in cars, electric appliances, electronic appliances, and more…

Price and Delivery options

• Shipped from Israel
• Tax may be subject to according to your country’s laws
• למזמינים לישראל, יש להזמין מהאתר הישראלי, לחצו כאן…

The package contains:

• ENV RD-100 meter
• English User Manual
• Case

Who is the seller?

• We are!

More info and links about the ENV RD-100 EMF meter

• Manufacture site (Manual, PC drivers, Monitoring software for PC, Monitoring software for Android) – http://www.envirosens.com/

Downloads

• Download PC USB driver  (in case win does not auto detect):  https://www.envirosens.com/software/CDM2123620_Setup.zip
• Download PC monitor software: http://www.envirosens.com/software/Monitoring.zip
• Download Android (4.3 and higher) monitor software: http://www.envirosens.com/software/ENV_Monitor.apk
• Download Mac (intel based) – https://www.envirosens.com/software/Monitoring_Mac.zip

Technical specifications

• RF Frequency range: 100MHz to 8GHz
• RF Refresh Rate 2/sec
• RF Sampling Rate 20000/0.5sec (40000/Sec)
• RF measuring range: 0.0001 mW/m¨ – 1650 mW/m¨
• RF typical accuracy: ±6 dB
• RF info displayed: Peak Value, Average (last 60 seconds), Max, Duty Cycle, Last 60 seconds Peak/time graph.
• RF technologies: Analog RF and Digital burst RF (GSM, TDMA, CDMA, LTE,
  DECT, ZigBee, Bluetooth, UWB, Wi-Fi, WiMAX 2.4GHz, 3.6GHz,
  5.8GHz, 2G,3G,4G, low bang 5G).
• LFM measuring range: 0.1mG – 50mG
• LFM accuracy: 20%
• LFM (magnetic field)
• LFM Frequency range: 30Hz to 25KHz
• LFM info displayed: Peak Value, Max, Frequency, Last 60 seconds Peak/time graph.
• LFM Refresh Rate 3/sec
• LFM Sampling Rate 5000/0.333sec (15000/sec)
• LFE measuring range: 1V/m-600V/m
• LFE accuracy: 25%
• LFE (electric field) Frequency 40 Hz-10 KHz
• LFE info displayed: Peak Value, Max, Frequency, Last 60 seconds Peak/time graph.
• LFE Refresh Rate 3/sec
• LFE Sampling Rate 5000/0.333sec (15000/sec)
• RF Modulation mode – Time length displayed on graph
• RF Modulation mode time length of the signal displayed = 0.5 sec or 0.1 sec, Each dot on the graph represents 5 ms, or 1 ms
• RF Modulation mode also displays Peak value and Duty cycle in this mode.
• RF Modulation mode Refresh Rate, the meter displays the signal when captured.
• In RF Modulation mode, the signal is displayed until the next signal is captured.  This means that in this mode the meter is not “Real Time”.
• RF Modulation mode Sampling Rate 5 ms = 60000/sec, 1 ms mode = 100000/sec
• Joint mode – Refresh Rate in Joint mode RF, LFM, & LFE = 2/sec (updates every 0.5 sec)
• Joint mode  – Displaying only peak values in this mode.
• Joint Mode Sampling Rate
  RF = 10000/sec
  LFM = 4000/sec
  LFE = 4000/sec
• Batteries 2 x AA, Expected working time Up to 20 hours using new alkaline batteries
• USB power supply continues operation, without charging.
• USB data cable will allow operation of monitoring software on PC/MAC/Android, and software version update software on PC.
• USB data cable + Android phone, Capable of using Android phone software and GPS receiver to scan large areas and export measurement and GPS data to Google maps.

Videos of ENV RD-100

Unboxing and explanation (03/2025) –  https://youtu.be/8ZiWwR-FsEY

Scanning 2 houses with the ENV RD-100 in JOINT MODE –  https://youtu.be/pBwvjKJZg_A

Scanning 2 house with the ENV RD-100 in RF Mode – https://youtu.be/viYjhv0__SU

Coming Soon (02/2025) –  https://youtu.be/Sd-Usl3UONg

The post ENV RD-100 EMF Meter appeared first on For EHS By EHS.

Kit contains

• USB Active Cable
• Micro/USB-C convertor

Software

• Download PC USB driver: http://www.envirosens.com/software/driver/CDM21228_Setup.exe
• Download PC monitor software: http://www.envirosens.com/software/Monitoring.zip
• Download Android (4.3 and higher) monitor software: http://www.envirosens.com/software/ENV_Monitor.apk

How to

1. Install drivers (if needed)
2. Install the software (if needed)
3. Remove batteries from the ENV RD100 meter (not from the ENV RD10)
4. ENV RD100 should be turned OFF (ENV RD10 can be ON or OFF)
5. Connect the meter to the PC/laptop using the special USB Data cable (for Android use adapters) ==> meter will light up and be ON
6. On the software, press “Search Device” ==>
   ENV RD100 display might be empty, LED indication will remain active.
   ENV RD10 LED indication will remain active.
7. On the software, press “Start Recording ” ==> the measurement table and graph on the software will start accumulating the measurement results.
8. Press Mode button on the ENV RD100 , or change the mode switch on the RD10 to change modes of measurements between RF/LFM/LFE (RF Modulation and JONIT MODE are not supported).
9. On the software, press “Stop Recording ” ==> recording and logging will stop.
10. It is possible to save the recording log using the software.

Videos

Connecting and using the ENV RD100 to record EMF measurements on a PC/Laptop

Link – https://youtu.be/NtUBQ-pmN0w?si=r699CHwITYeBMFAv

The post ENV RD10/100 USB Data cable for PC monitoring appeared first on For EHS By EHS.

• CelloEye 24Gs-5 RF detector (5 LEDs light indication & beeping sound!!!)
• It can be used to detect RF sources, RF emissions, and RF radiation up to 24GHz.
• It uses five LED lights to show when the RF radiation level is over  0.1-1 mW/m2 (and up to around 5mW/m2).
• It is not a replacement for an RF/EMF meter, does not indicate RF levels, and is not REAL TIME (does not react to short RF signals).
• Very long (up to 4 years) working time using a single CR2032 battery (depending on the RF radiation detection).
• It can be glued to walls, windows, and doorsteps, in order to detect RF radiation or if someone enters an RF source into the house.
• It can be carried in your pocket
• Frequency response 0.05-24GHz
• Standard Sensitivity from ~0.1-1 mW/m2 – around 5mW/m2.
• Beeps from ~0.1-1 mW/m2
• It can work without a battery change for up to 4 years (depending on how often it beeps and blinks).

Possible usage of the CelloEye 24Gs-5 RF Detector

• A very simple RF detector, with 5 less indicating the (approximately) RF level, and Beeping sound,  for training, schools, demos…
• A very simple RF detector for finding RF sources & penetration points in a low RF house.
• A cheap RF detector that can be glued to windows, doors, and walls, to allow detection of incoming RF bursts or when people with RF sources come into the Low EMF house.
• A tiny RF detector to be used by EHS (Electromagnetic Hyper Sensitive) people can carry with them, to alert them of RF radiation when going into places with high RF, or when people with smartphones or wireless devices come close to them.

The specs of CelloEye 24Gs-5 RF Detector

• Model number: CelloEye 24Gs – ENV RD1S (light indication & beeping sound!!!)
• RF detector with one single LED light that lights up, and a beeping sound,  whenever RF radiation is detected above the threshold of 0.1mW/m2
• Run using a single CR2032 battery
• The battery can last up to 4 years (depending on how often it beeps and blinks).
• Weight 18g
• Size
  Height 56mm
  Wide 39mm
  thickness 12mm
• Frequency response 0.05-24GHz
• Sensitivity from ~0.1-1 mW/m2 (first led), to around 5mW/m2 (last red LED).
• Beeps from ~0.1-1 mW/m2.
• You can ask us to increase the detector sensitivity by X10 or X100 – https://www.4ehsbyehs.com/product/increase-sensitivity-celloeye-24gs/
• Manufacture ENVIROSENCE LTD
• Made in Israel
• Sent from Israel
• This RF detector was developed with our close cooperation and according to our requirements so that it would be used by Electromagnetic Hyper Sensitive(EHS) people to detect RF devices and emissions in their houses, and when RF sources are being entered into their homes.

Videos

Link – https://youtu.be/zkzfoMOxJ_I

RF alarm system using the CelloEye 24G RF detectors – https://youtu.be/uBUsmc80sHo

The post CelloEye 24Gs-5 – A TINY RF DETECTOR WITH BEEPING SOUND and 5 LEDs INDICATION appeared first on For EHS By EHS.

• CelloEye 24Gs RF detector (light indication & beeping sound!!!)
• It can be used to detect RF sources, RF emissions, and RF radiation up to 24GHz.
• It uses one LED light to show when the RF radiation level is over  0.1m-1W/m2
• Very long (up to 4 years, depending on how often it beeps and blinks) working time using a single CR2032 battery (depending on the RF radiation detection).
• It is not a replacement for an RF/EMF meter, does not indicate RF levels, and is not REAL TIME (does not react to short RF signals).
• It can be glued to walls, windows, and doorsteps, in order to detect RF radiation or if someone enters an RF source into the house.
• Can be carried in your pocket
• Frequency response 0.05-24GHz
  Standard Sensitivity from ~0.1 -1 mW/m2
  10X increased sensitivity ~0.01-0.1 mW/m2 (US10% extra)
  100X increased sensitivity ~0.001-0.01 mW/m2 (US10% extra)
  Weight 18g
  Can work without a battery change for up to 4 years (depending on how often it beeps and blinks).

Possible usage of the CelloEye 24Gs RF Detector

• A very simple RF detector, with “RF exists” or “No RF” indication for training, schools, demos…
• A very simple RF detector for finding RF sources & penetration points in a low RF house.
• A cheap RF detector that can be glued to windows, doors, and walls, to allow detection of incoming RF bursts or when people with RF sources come into the Low EMF house.
• A tiny RF detector to be used by EHS (Electromagnetic Hyper Sensitive) people can carry with them, to alert them of RF radiation when going into places with high RF, or when people with smartphones or wireless devices come close to them.

Sensitivities options

Please note that it is not a replacement for an RF/EMF meter, does not indicate RF levels, and is not REAL TIME (does not react to short RF signals).
Select the required sensitivity (hardware-coded) according to your home RF levels:

• Standard Sensitivity from ~0.1 -1 mW/m2
• 10X increased sensitivity ~0.01-0.1 mW/m2 (US$10 extra)
• 100X increased sensitivity ~0.001-0.01 mW/m2 (US$10 extra)

Spec of CelloEye 24Gs RF Detector

• Model number: CelloEye 24Gs – ENV RD1S (light indication & beeping sound!!!)
• RF detector with one single LED light that lights up, and a beeping sound,  whenever RF radiation is detected above the threshold of 0.1mW/m2
• Run using a single CR2032 battery
• The battery can last up to 4 years (depending on how often it beeps and blinks).
• Weight 18g
• Size
  Height 56mm
  Wide 39mm
  thickness 12mm
• Frequency response 0.05-24GHz
• Sensitivity from 0.1 mW/m2
• You can ask us to increase the detector sensitivity by X10 or X100 – https://www.4ehsbyehs.com/product/increase-sensitivity-celloeye-24gs/
• Manufacture ENVIROSENCE LTD
• Made in Israel
• Sent from Israel
• This RF detector was developed with our close cooperation and according to our requirements so that it would be used by Electromagnetic Hyper Sensitive(EHS) people to detect RF devices and emissions in their houses, and when RF sources are being entered into their homes.

Videos

Link – https://youtu.be/z9NUoMScijM

RF alarm system using the CelloEye 24G RF detectors – https://youtu.be/uBUsmc80sHo

The post CelloEye 24Gs – A TINY RF DETECTOR WITH BEEPING SOUND appeared first on For EHS By EHS.

• CelloEye 24G RF Detector – A Tiny RF detector with light indication only, no beeping sound!!!
  For a version with a beeping sound, please see – https://www.4ehsbyehs.com/product/celloeye-24gs/)
• It can be used to detect RF sources, RF emissions, and RF radiation.
• It uses one LED light to show when the RF radiation level is over  0.1mW/m2
• Very long (up to 4 years) working time using a single CR2032 battery (depending on the RF radiation detection).
• It is not a replacement for an RF/EMF meter, does not indicate RF levels, and is not REAL TIME (does not react to short RF signals).
• It can be glued to walls, windows, and doorsteps, in order to detect RF radiation or if someone enters an RF source into the house.
• Frequency response 0.05-24GHz
• Sensitivity from 0.1-1  mW/m2
• Weight 18g
• Work without a battery change for up to 4 years (depending on how often it blinks)

Possible usage of the CelloEye 24G RF Detector

• A very simple RF detector, with “RF exists” or “No RF” indication for training, schools, demos…
• A very simple RF detector for finding RF sources & penetration points in a low RF house.
• A cheap RF detector that can be glued to windows, doors, and walls, to allow detection of incoming RF bursts or when people with RF sources come into the Low EMF house (if the RF level in your house is lower than 0.1mW/m2).

CelloEye 24G  RF Detector – No sound/beeper

• Model number: CelloEye 24G (light indication only, no beeping sound!!! for a version with beeping sound, please see – https://www.4ehsbyehs.com/product/celloeye-24gs/)
• RF detector with one single LED light that lights up whenever RF radiation is detected above the threshold of 0.1-1 mW/m2
• Run using a single CR2032 battery
• The battery can last up to 4 years (depending on how often it blinks).
• Weight 18g
• Size
  Height 56mm
  Wide 39mm
  thickness 12mm
• Frequency response 0.05-24GHz
• Sensitivity from 0.1-1  mW/m2
• Manufacture ENVIROSENCE LTD
• Made in Israel
• Sent from Israel
• This RF detector was developed with our close cooperation and according to our requirements so that it would be used by Electromagnetic Hyper Sensitive(EHS) people to detect RF devices and emissions in their houses, and when RF sources are being entered into their homes.

Videos about CelloEye 24G RF Detector

Link – https://youtu.be/EzDb5nx94GM

RF alarm system using the CelloEye 24G RF detectors – https://youtu.be/uBUsmc80sHo

The post CelloEye 24 RF DETECTOR appeared first on For EHS By EHS.