Monitor DC voltage between 0V and 100V with this simple 3-wire voltmeter
Use a separate 4-40V DC power supply allowing voltage readings down to 0V and up to 100V or use it as a 2-wire voltmeter for 4-40V.
Working current: <20mA Refresh rate: 200ms Auto ranging 0.01V precision Reverse polarity protection
Size: 23x 11.7 x 9.2 mm (30mm wide including posts)
Wire Length: 15cm
Operating Temp: -10 - 65 DC only, not for use with AC Supply voltage above 40V will damage the unit