When your electrical installation goes down, getting it back up and working quickly is obviously key. To do so, you'll need to diagnose the issue: what's causing the problem, and where exactly is it occurring?

That's where an electrical tester comes in. A multimeter can be used for measuring voltage, resistance, temperature and more. Power quality analyzers can measure the strength of your current, frequency, and lots of other things. Watt meters can help you save money (and the earth) by measuring your energy consumption and letting you know what appliances are eating up the bulk of your power. Receptacle testers can identify faulty wiring and other issues in electrical receptacles.

These are just a few of the testers available. Check out our selection to find the tester that's right for you, whether you're setting up a new installation or fixing a problem in an existing set-up.