Di LOG PU690 690V Proving Unit

Amazon

690V AC Output to prove voltage for 2 pole testers High/Low Impedance for proving voltage on multimeters CAT II 750V Safety Rating Low Battery Indication Supplied with batteries

Test-meter.co.uk

DiLOG PU690 690V AC proving unit for two-pole voltage indicator testing. AC output. 690V, 50 Hz,