MK20 Set of EMF Meters HF35C Meter and Low Frequency ME3830B Gauss Meter RF/LF meters to evaluate radiation caused by GSM mobile radios, cordless phones, WLAN and etc.. Digital display which shows the total exposure within measured frequency range Frequency range: 800 MHz up to 2,500 MHz / 16 Hz up to 100 kHz Measuring range: 0.1 W/m up to 1,999 W/m (HF35C) / 1 nT/Vm up to 2,000 nT/Vm (ME3830B) Accuracy: 6 dB, 9 digits