Martindale PD690SRD Proving Unit 690V AC/DC

The PD690SRD is fast and easy to use, instantly supplying the full test voltage for both high and low impedance voltage indicators, test lamps and meters. It comes complete with an over-moulded low-profile case with magnetic hanger. Proves the operation of voltage indicators, multimeters and test lamps up to 690V AC and is ideal for higher voltage, three-phase commercial and industrial applications.
Suitable for use with voltage indicators up to 690V
Stepped voltage output matched to two-pole tester thresholds
Switchable AC / DC output mode via push button