Testing Accessories & Leads

Check the maximum voltage and current the leads are rated for, and make sure they cover what you will measure. The Mercury 600.708UK is a pair of red and black test leads for measurements up to 1000V and 20A. For clip-on connections, the Mercury 780.011UK set has ten 500 mm leads with soft plastic insulated 25mm crocodile clips on both ends.

It depends on the set, so check the number of leads in the set before you buy. The Mercury 780.011UK set has 10 leads, two in each of five colours: red, black, green, yellow and white. Each lead is 500 mm long, with soft plastic insulation and a soft plastic insulated 25mm crocodile clip on each end.

It depends on the job: a two pole tester measures voltage between two probes, while a non-contact tester detects AC voltage without touching the conductor. The Knightsbridge TE1 measures 12 to 690V AC/DC on an LED and LCD display and is certified to EN 61243-3. The Mercury 710.030UK pen beeps and flashes red within 1cm of a live source across a 90-1000VAC range, and both have a torch.

Testing accessories are the leads, clips and testers used with meters and for checking cables, sockets and detectors. From Mercury come the 600.708UK red and black multimeter leads, the 780.011UK set of ten crocodile clip leads and the 710.030UK non-contact voltage test pen, and from Knightsbridge the TE1 2-pole voltage tester and the TE3 BS 1363 socket tester. The GJD380 walk tester is for installing GJD D-TECT systems.

Plug in a socket tester, which checks the socket for common wiring faults and shows the result on its display. The Knightsbridge TE3 is a mains powered BS 1363 socket tester made for testing sockets after fitting, with a clear fault display and an easy to read diagnosis. It is a compact unit certified to EN 61326 and EN 61000.

A PIR walk tester confirms when a detector picks up movement, with a sound or a light, so the detector can be positioned and aligned during setup. The GJD380 gives audible confirmation of detection with a bright white LED when installing GJD D-TECT systems. It needs a 9V PP3 battery, not included, and draws 0.5mA on standby and 30mA when operating.