Martindale VIPD138s Voltage Indicator and Proving Unit Ref: VIPD138s £145.86 exc. VAT £175.03 inc. VAT Add to cart Continuity Tester Ref: TEK402 £33.65 exc. VAT £40.38 inc. VAT Add to cart Voltage Indicator, Proving Device & Lock Out Kit Ref: VIPDLOK150 £199.00 exc. VAT £238.80 inc. VAT Add to cart