Safety is a priority for the KEW 4105A: it warns the operator if the resistance of the auxiliary earth spikes is out of tolerance, preventing faulty or unsafe measurements. Its safety rating (CAT III 300 V) ensures it meets professional‑grade electrical standards. The device also features overload protections to handle accidental voltage exposure, elevating confidence in its real-worl... https://tools.com.bd/product/kyoritsu-4105a-digital-earth-tester