ITEM NAME:22MM AC 12-500V Voltmeter Square Panel LED Digital Voltage Meter Indicator A1B3 22MM AC 12-500V Voltmeter Square Panel LED Digital Voltage Meter Indicator A1B3 Input Voltage: AC 12 to 500 Voltage (AC only) Rated Current: Less than 20mA Brightness: Greater than equal 60cd/Square Meters Vibration AC Frequency: 2-80Hz Acceleration Electrical durability: Greater than equal 30,000H colour: Red + gray Material: ABS+ electronic components size: 3.8*2.9*2.2CM Package Contents: 1*LCD indicator