3-digit LED voltmeter for 0-100VDC range. 0.28″ digits on a 0.89″ x 0.39″ display. Red digits on black background. Three wire operation. Red-black for power; yellow-black for voltage being monitored. Will monitor its own voltage. Mounting ears with holes on 1.03″ centers. Also available with blue digits, CAT PM-126B.
Working current: 20mA
Operating voltage: 4-40 VDC