2 Wire Red DC2.5-30V LED Panel Digital Display Voltage Meter Voltmeter
Features:
*
* Refresh speed: about 500ms/each time.
* Allowable error: 1% (+ /-1).
* Power supply:No need power supply.
* Current consumption: Less than 20 mA, general 5-15 mA.
* Working temperature: -10?C ~ 65 ?C.
Package Contents:
1 x DC 4.5-30V LED Voltmeter