Nuclear radiation detection Detection technology: G-M detection technology Detection Type: Beta, Gamma, X-ray Display mode: LCD screen + backlight Energy range: 20kev~3.2mev 30%(137Cs-) Sensitivity: 80cpm/Sv/(Co-60) Test accuracy: 0.01 Sv/h Real-time range: 0-99.99 Sv/h Accumulation range: 0-99.999 mSv/h Real-time error: 10% Mean error: 3% Power supply mode: 3 1.5V dry batteries or 3 1.2V rechargeable batteries (without batteries, you need to bring your own) Charging time: 4 hours Machine size: 105*70*30mm Packing size: 106*71*35mm Electromagnetic radiation detection Test range: S 0-99.999 w/cm (power density) E 0-99.999 V/M (electric field strength) H 0-99.999 T (magnetic field strength) Test accuracy: S 0.001w/cm (power density) E 0.01 V/M (electric field strength) H 0.001 T (magnetic field strength) Frequency range: S 50MHZ-5GHZ (power density) E 20HZ-100MHZ (electric field strength) H 20HZ-1MHZ (magnetic field strength)