HT Instruments manufactures the M70 Insulation Tester, a device designed for electrical isolation tests at voltages of 250 V, 500 V, and 1000 V, with a resistance measurement capability up to 4 GO. It is primarily used for ohm tests in various applications to ensure proper electrical insulation and safety in circuits. This tool is essential for detecting faults in wiring and maintaining optimal electrical system performance. https://elecena.pl/product/28786085/ht-instruments-1004020-m70-insulation-tester-250-500-1000v-4g 2025-05-22 https://elecena.pl/product/28786085/ht-instruments-1004020-m70-insulation-tester-250-500-1000v-4g 2026-07-10