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
Measurement rate: 200mS /Times
Working current: 20mA
Operating voltage: 4-40 VDC
Measurement rate: 200mS /Times
Customer Reviews
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LED voltmeters 
Reviewer:
A viewer
from Los Angeles
Cute little gizmos. More precise than accurate. They have tweaker pots on the back - you may want to tweak them. Mine reported about a volt more than a calibrated meter did until adjusted, and even then wasn't quite right (they don't seem to be entirely linear, either). For rough measurements just fine. Plenty bright display.
Smaller than I expected - should have paid more attention to the sizes noted. The whole thing is invisible under my thumb.
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