4000 counts DMM with multisenor input for temperature, humidity, lux, sound level measurements Data hold and LCD backlit Relative measurement Auto/manual ranging, auto power off Integrated protection holster, safety as per IEC1010-1 Cat.III 600V & Cat.II 1000V Technical Specifications: DCV: 400m/4/40/400/1000V, ±0.7% ACV: 400m/4/40/400/750V, ±0.8% DCA: 400u/4m/40m/400m/4/10A,±1.2% ACA: 400u/4m/40m/400m/4/10A,±1.5% OHM: 400/4k/40k/400k/4M/40MΩ, ±1.2% CAP: 40n/400n/4u/40u/100uF, ±3.0% FREQ: 10/100/1k/10k/100kHz, ±2.0% Duty cycle: 1~99%, ±3.0% TEMP: -20℃~1000℃ (-4℉-1832℉) , ±2.0% Temp (NTC): 0℃~4℃ (32℉~104℉), ±20C/4℉ %RH: 30%~95%, ±5.0%RH LUX: 4,000/40,000Lux, ±5.0% Sound dB: 35~100dB, ±3.5% Audible continuity & diode test Dimensions: 204x93x57mm, 580g Battery: 1.5Vx4, AA size