Insulation, Earth & Continuity Testers

30 products

Sound insulation and a solid earth are what stand between an electrical installation and a serious incident. Our insulation, earth and continuity testers give Australian electricians and inspectors the means to prove those safeguards are in place, during installation, periodic testing and fault investigation. 

The range covers the essential safety checks. Insulation resistance testers apply a high test voltage to confirm insulation is not breaking down, earth resistance testers verify that earthing systems will safely carry fault current away, and continuity testers confirm protective conductors are properly connected end to end. Multifunction installation testers combine these functions for efficient compliance testing. 

Choosing the right instrument depends on the installations you test and the standards you work to. Our team can help you match a tester to your work so you have the functions you need without paying for those you do not. 

Safety testing only means something if the tester itself reads true, and instruments drift over time. We calibrate the equipment we sell, with ISO 9001 certified processes and traceable results that satisfy compliance and audit requirements. 

We deliver to electricians, contractors and inspectors across Australia. Need help choosing a tester for your compliance work? Get in touch and we will point you the right way.

Frequently Asked Questions

It applies a high DC test voltage across insulation and measures the resistance, revealing whether the insulation is intact or breaking down. Low readings warn of moisture, damage or ageing that could lead to a fault. It is a core test for verifying the safety of wiring and equipment.

A low-resistance earth path lets fault current flow safely to ground and lets protective devices operate quickly. If earth resistance is too high, that protection may not work when needed, raising the risk of shock or fire. Earth testing confirms the earthing system will do its job.

Continuity testing confirms that a conductor, particularly a protective earth conductor, is properly connected from one end to the other with low resistance. It verifies that safety connections are complete and sound, which is essential during installation and periodic inspection to ensure protective earthing actually functions.

A multifunction installation tester combines several tests, typically insulation resistance, continuity, earth loop impedance and RCD testing, in one instrument. It streamlines compliance testing of an installation, saving time and reducing the kit an electrician has to carry while covering the range of checks a job requires.

Yes, and it is important. These instruments verify electrical safety, so a tester reading incorrectly could pass an unsafe installation or fail a sound one. Regular calibration confirms accuracy and keeps your test results and certificates defensible. We calibrate the safety testers we supply and issue traceable results.

Many are calibrated annually, though heavy use or demanding environments may call for shorter intervals, and your quality or compliance regime may set a firm requirement. Because these instruments underpin safety certification, keeping to a regular schedule is well worth it. Our team can advise on suitable intervals.

Yes. We stock insulation, earth, continuity and multifunction testers and ship to electricians, contractors and inspectors nationwide. Tell us the installations you test and the standards you work to, and we will recommend a suitable instrument, plus a calibration schedule to keep it compliant.