The Testboy TV 800 is a two-pole voltage and current tester suitable for CAT III 300 V environments. It features an acoustic continuity tester, making it ideal for electricians working on various electrical installations. Typical applications include checking circuit integrity, voltage levels, and electrical continuity in both residential and industrial settings. https://elecena.pl/product/28894411/testboy-tv-800-continuity-tester-cat-iii-300v-led-torch-voltage-sensor 2025-06-02 https://elecena.pl/product/28894411/testboy-tv-800-continuity-tester-cat-iii-300v-led-torch-voltage-sensor 2026-10-02