Tests current and voltage continuity in circuitUseful for small electrical repairs and testsElectrical Tester is a simple solution to test current and voltage continuity in any circuit. Has an insulated and transparent plastic casing with a metal cap at one end. The other end has a tester screwdriver. Useful for small electrical repairs and tests. A small bulb embedded in the plastic casing lights up when the tester screwdriver comes in contact of a 'live' connection while the user is touching the casing cap with a finger.High quality voltage / circuit tester with slotted bladeFully insulated for assured safetyMeasures from 100V right up to 500V ACNickel plated spring steel pocket clipPerfect companion for your toolbox, buy yours now!Product Specification:Type: Electric testerDimension: 140 mm x 56 mmMeasuring Range: 100 - 500 V Display Type: Light only