Nothing is more dangerous than trusting a defective voltage indicator. The proving unit produces 690v AV/DC to enable voltage indicators to be fully checked. This unit is designed for indicators with 230v and 415/440v AC or DC detection ranges. Such as the Martindale V1137100G. The proving unit is one few designs to check indicators with ranges above 250v.

The PD690 can also check Drummond and other filament test lamps, as its output is sufficient to illuminate the bulb.

£69.00
(£81.08
inc VAT)