1. Input voltage: AC60-500V2. Voltage measurement error: 2 percent3. Ambient temperature: -25-50 degrees celsius4. Function: measuring voltage and displaying it through digital tube5. Small power consumption, stable performance6. Mini size, easy to install7. Digital display design, voltage data changes at a glance8. Size: 69 x 42 x 16mmSpecification: Package Weight One Package Weight 0.04kgs / 0.10lb One Package Size 8cm * 5cm * 4cm / 3.15inch * 1.97inch * 1.57inch Qty per Carton 360 Carton Weight 15.50kgs / 34.17lb Carton Size 51cm * 38cm * 32cm / 20.08inch * 14.96inch * 12.6inch Loading Container 20GP: 429 cartons * 360 pcs = 154440 pcs 40HQ: 998 cartons * 360 pcs = 359280 pcs