Di-Log PU690 Volt Indicator Proving Unit. Di-Log Test Equipment is a supplier of quality electrical test instruments with the latest innovations in testing technology. The range of equipment extends from simple voltage indicators to portable appliance testing systems and includes the award-winning Combi Volt voltage and continuity testers, and the 9083P multi-function 17th Edition installation tester. The Di-Log PU690 is a voltage indicator proving unit suitable to enable compliance safety checking of voltage indicators for safe operation prior to testing on a live circuit. This unit is compact and lightweight, making it simple to carry around. It is designed with an ultra-bright LED high voltage output and low battery indicator, clearly alerting the user during operation. The unit is compatible with voltage testers and multi-meters. Dimensions: 140 x 80 x 50mm