Kyoritsu 4105a

Description

Kyoritsu 4105a The Kyoritsu Digital Earth Tester 4105A is a robust, handheld instrument engineered for precise earth resistance and voltage measurements in a variety of electrical environments. Built to IEC 61557 safety standards and rated CAT III 300 V, it features dust‑ and drip‑proof (IP54) construction that permits reliable operation even in adverse weather conditions. At its core is a large, backlit LCD that clearly displays measured values, while a simplified dual‑purpose probe combining an alligator clip and flat test bar streamlines setup. The tester automatically warns when auxiliary earth‑spike resistance exceeds safe limits, helping prevent misleading readings and ensuring operator safety. Powered by six R6P (AA) batteries, it offers both precise three‑terminal measurements (20 Ω, 200 Ω, 2000 Ω ranges) and a quick, two‑terminal “simplified” mode for rapid checks. An earth‑voltage function (up to 200 V max) further expands its utility, verifying residual voltage before conducting resistance tests. Housed in a convenient soft carry bag, the 4105A is ideal for field engineers and electricians servicing power distribution lines, in‑house wiring systems, and industrial equipment. Its combination of rugged design, versatile measurement modes, and intuitive operation makes it an indispensable tool for ensuring grounding effectiveness and electrical safety.