Sell GM3120 Digital Electromagnetic Radiation Cell Hand Phone Detector best price

​Features Measurement range: electric field: 1 ~ 1999 v / m Magnetic field: 0.01 ~ 19.99 μm Resolution: electric field: 1 v / m; magnetic field: 0.01 μm Accuracy: electric field: ± 10 / m; magnetic field: 0 2μt 2μm Alarm: electric field: 40 m / m; magnetic field: 0.4 μm Display: 3.5 Digital LCD Frequency range: 5 Hz-3500 MHz Sampling time: 0.4 seconds Measuring mode: Dual mode Overload alarm: 1 appears on the screen Sound and light signal Data retention Backlight Auto Power Off Average and peak reading Low Battery indication Operating temperature: 0С ~ 50с Operating humidity: below 80% RH Power: 6F22 9 V battery (Battery not included) Package Weight: 146g Size: 63.6 * 31 * 125.8 mm