
Safeguard your installations with the ultimate 1000V Insulation Resistance Tester. Designed for precision diagnostics, the battery-powered TeriLimax offers seamless AC/DC voltage, resistance, diode, and continuity measurements, ensuring absolute workplace safety and high-accuracy results.




The TeriLimax features smart automatic discharge functionality. After insulation testing, residual electrical charges are safely and automatically grounded, preventing accidental shock.
Our 6000-count high-precision tester offers reliable data retention, low battery prompts, and clear polarity indication. Measure up to 1000V DC and 750V AC with perfect, stable readings.


Engineered with tough ABS and reinforced with protective silicone, the TeriLimax withstands rough drops and heavy on-site use. Keep your precision tools safe from wear and tear.



"The TeriLimax insulation resistance tester stands out with its fast response, auto-discharge safeguard, and clean precision readings. It is the most robust, field-ready kit for any safety-conscious electrical professional."
– Robert Chen, Senior Electrical Field Engineer


Adapt instantly to any insulation scenario with quick toggles between 100V, 250V, 500V, and 1000V modes.

Accurately measure AC voltage up to 750V and DC voltage up to 1000V with a highly sensitive resolution threshold.

Instantly grounds remaining high-voltage energy stored in insulation circuits to maintain safety for the user.


Its reinforced housing and silicone sleeve absorb impact drops and prevent slipping on dusty work benches.

No battery wastage. The device shuts down automatically after 15 minutes of inactivity to preserve AA battery life.

Includes a storage bag, test leads, heavy-duty alligator clips, and a packing box. Everything you need is ready to work.









We know technical tools can require guidance. Our specialized team is trained to handle your electrical operation queries, ensuring prompt, accurate support so you can work safely.
Frequently Asked Questions






This tester has outstanding resolution. Tested insulation resistance on a high-voltage industrial motor line and the 1000V automatic discharge option was spot on and incredibly safe!

Super impressed by how comprehensive the kit is. The tester pens and heavy alligator clips are premium quality. It fits neatly into the storage bag. Highly recommend this insulation tester!

The silicone bumper prevents dropping it on harsh worksites. It's lightweight but highly rugged. For $129, this is easily the best value diagnostic meter on the market today.
