The HT Instruments Jupiter is a versatile handheld multimeter calibrated to ISO standards, offering CAT IV 600 V and CAT III 690 V safety ratings and a 6000-count digital display. It is designed for testing RCD functionality, fault currents, loop impedance, and earthing resistance. This multipurpose tester is ideal for professionals needing reliable voltage, current, and frequency measurements. https://elecena.pl/product/28785994/ht-instruments-1010680-jupiter-handheld-digital-multimeter-true-rms-6000-counts 2025-05-22 https://elecena.pl/product/28785994/ht-instruments-1010680-jupiter-handheld-digital-multimeter-true-rms-6000-counts 2026-06-17