ITEM NAME:AC 70-500V Digital Voltmeter 0.56 inch LED Red 2 Wire Volt Voltage Test Meter Measuring range: AC70V-500V Power supply range: AC70V-500V The highest input: AC500V. Note: The input voltage higher than 500V may be permanently damaged! Allowable error: Â ±1%; Input impedance: > 1 mÃŽ © Operating current: < 23mA Refresh rate: about 300mS Display mode: three "0.56" LED digital tubes Display color: red Lead length: 15cm Dimensions: 48 x 29 x 22 mm, length X width X thickness; Opening size: 46 x 27 mm Working temperature: -20Â °C~65Â °C 1 x AC 70-500V Voltmeter.The highest input: AC500V. Input impedance: > 1 mÃŽ ©. Display mode: three "0.56" LED digital tubes. Lead length: 15cm. Opening size: 46 x 27 mm. Display color: red. We believe that everything could be solved by communication.