Display LED Digital Voltmeter Voltage Tester Meter HOT 0-30V Red Blue Ye I8P8

Measuring range: DC 2.530V Two-wire
Measurement accuracy: 0.1V
Display: Three 0.28 " LED digital tube
Display Color: Red, Blue, Green or yellow
Refresh Rate: about 500mS/times
Operating Temperature:-10°c +65 °c
Current consumption: generally 5-15mA, less than 20mA
Reversal protection: Yes
Cutting size: 23.5mm x 10mm
Mounting holes distance: 29mm
Power supply same source, self-Power

Wiring:
Red: Power Supply +, Measure Voltage +, (2.5 30V DC)
Black: Power Supply -, Measure Voltage -