Energy Watt Power Meter Monitor Product Description Voltage: 190V - 280V Power: 1 - 3000W Coulometer: 0.0001 - 9999AH Time: 0 - 60 minutes, 0 - 24 hours, 0 - 999 days Refresh frequency: more than 2 times per second Display: 8 digits LCD screen (4 decimals) Working temperature: -10°C to 60°C Precision: ±1% Humidity range: 10-95%RH Dimension: about 110 x 64 x 78 mm EU Plug