1. Power supply: 1.5V x 3 AAA battery power supply (shipping does not include)2. Power supply voltage: US plug 110V, EU plug 220V, UK plug 230V3. Voltage L-N (RMS): range: 85-99.9V/100-265V; resolution: 0.1V/1V; accuracy: about 2 percent+0.2V/1 percent+1V4. Voltage L-N (P-P): range: 121-374V; resolution: 1V; accuracy: about 1 percent+1V5. Voltage N-E (RMS): range: 0-10V; resolution: 0.1V; accuracy: about 2.5 percent+0.2V6. Frequency: range: 45-65Hz; resolution: 0.1Hz; accuracy: about 1 percent + 0.3Hz7. 5-minute automatic shutdown, backlight design is convenient to use8. Circuit fire hazards, to protect the safety of electricity9. Can detect the circuit load capacity, in order to replace or repair in a timely manner10. Small shape, does not occupy space, suitable for home use11. Size: 137 x 60 x 62mm12. Weight: 160g (without battery)Packing list:- Circuit multimeter x 1- Storage bag x 1- Instruction manual x 1Specification: Package Weight One Package Weight 0.27kgs / 0.60lb One Package Size 16cm * 8cm * 8cm / 6.3inch * 3.15inch * 3.15inch Qty per Carton 50 Carton Weight 14.20kgs / 31.31lb Carton Size 50cm * 34cm * 34cm / 19.69inch * 13.39inch * 13.39inch Loading Container 20GP: 461 cartons * 50 pcs = 23050 pcs40HQ: 1071 cartons * 50 pcs = 53550 pcs