






Price: £33.48
(as of Sep 28, 2025 23:19:21 UTC – Details)
From the manufacturer


Martindale VT12 Voltage Indicator
The VT12 is a two pole Voltage Indicator and Continuity tester with automatic AC/DC detection up to 690V and continuity testing with optical and acoustic indication up to 500k Ohms.
The bright LED indicators provide immediate display of the voltage range and the VT12 is supplied with probe caps for GS38 compliance.
The bright LED indicators provide immediate display of the voltage range and the VT12 is supplied with probe caps for GS38 compliance.
LED voltage indicator Measures 12V to 690V Includes continuity test Probe caps for GS38 compliance AC/DC 2 pole voltage indication Single pole phase test Built for safety (CAT III 600V, CAT VI 300V)

Single pole phase test

Includes continuity test

Built for safety

AC/DC 2 pole voltage indication

LED voltage indicator
Measures 12 V to 690 V
Includes continuity test
Probe caps for GS38 compliance
Customers say
Customers find the voltage tester to be good value for money, easy to use, and reliable. They appreciate its accuracy and safety features, with one customer noting it could save lives. The size receives mixed feedback, with several customers describing it as small, while build quality opinions are divided between those who find it well-made and those who feel it’s cheaply constructed. Battery life is also mixed, with one customer reporting issues with the battery compartment.
