Monitor DC voltage between 0V and 30V with this simple 3-wire voltmeter
Uses a separate 5-30V DC power supply allowing voltage readings down to 0V.
±1% tolerance Working current: <30mA Refresh rate: 300ms Auto ranging 0.01V precision
Size: 23x15x10mm (33mm wide including posts)
Weight: 5.7 g Wire Length: 15cm
Operating Temp: -10 - 65 DC only, not for use with AC Voltage above 30V will damage the unit