1. Wiring terminal: 3L+3N2. Measuring voltage range: AC 80-500V3. Measuring accuracy: 1 percent4. Measurement rate: 200MS/time5. Protection level: IP206. Electrical life: more than 15000 hours7. Operating temperature: -5 to 40 degrees celsius8. Storage temperature: -25-70 degrees celsius9. Air relative humidity: 1-80 percent10. Working pressure: 80-160Kpa11. Installation: guide rail (18mm)12. Function: measure three-phase AC voltage and display the voltage value of each phase through digital tube13. Size: 81 x 66 x 18mmSpecification: Package Weight One Package Weight 0.08kgs / 0.19lb One Package Size 10cm * 8cm * 2cm / 3.94inch * 3.15inch * 0.79inch Qty per Carton 360 Carton Weight 30.00kgs / 66.14lb Carton Size 51cm * 38cm * 34cm / 20.08inch * 14.96inch * 13.39inch Loading Container 20GP: 404 cartons * 360 pcs = 145440 pcs40HQ: 939 cartons * 360 pcs = 338040 pcs