GM3120 Review & Teardown Digital Electromagnetic Radiation Detector Meter Dosimeter Counter

This meter can test electric field radiation and magnetic field emission to reach the optimal test result. It is used to test and learn electromagnetic radiation situation indoor and outdoor. It is equipped with a built-in electromagnetic radiation sensor, which can display the radiation value on the LCD digital display after processing by control micro-chip.
Features: E0546
One instrument with two uses, it can test the electric field and the magnetic field radiation at the same time.
Sound-light alarm, when the test result exceeds the safe value, the instrument will alarm automatically.
Data locking, one-key lock of the radiation value.
LCD display of the values for easier reading.
Radiation assessment, remind you whether the radiation value is safe or not.
Fashionable design, easy on-hand operation, it's easy to carry and make field measurement.
Specifications:
Color：Orange + Black
Material: Plastic
Unit: V/m (Electric Field); μT(Magnetic Field)
Accuracy: Electric: 1V/m; Magnetic: 0.01μT
Range: Electric: 1-1999V/m; Magnetic: 0.01-19.99μT
Alarm Threshold: Electric: 40V/m; Magnetic: 0.4μT
Display: 3-1/2 LCD Display
Test Bandwidth: 5Hz-3500MHz
Sampling Time: Approx. 0.4 Seconds
Test Mode: Bimodule Synchronous Test
Over Range Indication: LCD Displays "1"
Operating Temperature: 0°C-50°C
Operating Humidity: Relative Humidity (80%
Power Supply: 1 * 6F22 9V Battery (NOT included)
Item Size: 12.5 * 6 * 3cm / 4.92 * 2.36 * 1.18in (L * W * H)
Item Weight: 109g / 3.84oz
Package Size: 18 * 8.2 * 4cm / 7.08 * 3.23 * 1.57in (L * W * H)
Package Weight: 167g / 5.91oz
Package List:
1 * Electromagnetic Radiation Detector
1 * User Manual (English)

[@Domoterapeuta]

Thanks a lot I have the same detector, I didn't know what battery needed

[@justinstoughtenger1277]

9 bolt battery

[@PK075]

What EMF app are you using please?

[@PoppinPortraits]

Battery: prise up the metal battery connectors inside the unit by a millimeter or two and it’s a much better connection afterwards. Ah you did do!!

[@ahmetkursun7898]

very good video and nice..

[@DissidentClipper]

It should've beeped next to you're phone. Cell phones give off electromagnetic radiation right? Should've tried it next to your wifi or microwave

[@PoppinPortraits]

My iPhone shows no reading until the screen lights up then it shoots up and averages 100 v/m. My aquarium filter pump has scared me it’s reading 99.99 micro Tesla’s and looks like it would keep going. But it drops to 0 a few inches away.

[@richardschnedorf5711]

So, what's the bottom line?

[@toddshank8724]

Thumb up for DP. I have a GM3120 too, don't know what use it is.

[@El_Ezegero-Music]

used to measure genius radiation

[@zhyfn9773]

It claims to measure single up to 3500MHz, but it can pick up nothing from phones even its transmitting at high speed. I guess it’s sensitivity is very low.

[@thatgamer-qf3od]

What is a ut?

[@irsikfamily5872]

I have this exact device and I ran it around my daughter and it showed 20 around her heart area. Anyone know what this is about? And I made sure to be completely away from all electronics or any form of interference. Also when I put my hand on her head it drops to zero.

[@ninjastriker6761]

Is she jabbed?

[@daveb7999]

Magnetic personality, no doubt.

[@irsikfamily5872]

@@ninjastriker6761 no

[@thebig_m4735]

Your heart produces a very strong(compared to the brain) natural EM field. Fun rabbit hole to fall into : )

[@wefukthenwo]

Aim this at a 5G tower and watch it sing!

[@jaihind3693]

@tim brown Mr Brown is it because the fiv g frequency is beyond meters Range ? then how to measure its dB ?

[@cptstubing]

You could put it near any cell tower. Probably give the same readings.
It doesn't measure frequency anyway, it measures magnetic field and electric field. if you want to measure frequency, you'd need a spectrum analyser.

[@PoppinPortraits]

Good shout.

[@vikrantkadam2276]

Prize how many

[@efe2]

Is it useful to measure microwave?

[@NevsTechBits]

I don't think so.

[@efe2]

@@NevsTechBits if I put it on the fan's power key it shows me H fileld 99.99 is that normal?

[@zhyfn9773]

It picks up AC power from the power cord even if my microwave oven is off. When it’s on, the single of Electric field does not charge much but it pick up additional magnetic field that dies out in 1 meter distance from the oven.

[@El_Ezegero-Music]

Mide todo tipo de ondas eletromagneticas

[@alanthomas6438]

emf goes through the air and it didnt do anything

[@DEAD4LIVE]

This thing is finicky