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ZOYI ZT-703S Firmware Upgrade Guide – Fix Insufficient Memory Error (Step-by-Step) 03/21/2026 20:27:22
Insulation Testers
⚡ Professional insulation testers for safe and accurate insulation resistance testing on cables, motors, circuits and electrical installations. Ideal for electricians, engineers and maintenance work. Features include multiple test voltages, high MΩ ranges and advanced functions such as PI/DAR and live circuit detection. 🇬🇧 UK stock with fast delivery, VAT invoice and warranty included.
There are 2 products.
Availability: 17 In StockThe ZOYI ZT-1000R is a professional insulation tester and True RMS digital multimeter designed for electricians, maintenance engineers and electrical safety inspections. It supports insulation resistance testing up to 1000V and includes multimeter functions such as AC/DC voltage, current, resistance, continuity and diode testing.
With a clear backlit display, reliable insulation measurement ranges and accurate True RMS performance, it is suitable for testing motors, cables, wiring installations, appliances and electrical equipment in domestic, commercial and industrial environments. UK stock with VAT invoice included.
Availability: 10 In StockThe ZT-XR1 is a high-precision battery internal resistance tester combined with a 25,000-count True-RMS digital multimeter. It measures mΩ battery resistance, voltage, frequency, continuity, diodes and more — making it ideal for repair shops, technicians and hobbyists.
Its large display, fast auto-range function and accurate mΩ readings make it perfect for diagnosing lithium, AA/AAA, NiMH and rechargeable battery health. The ZT-XR1 ensures you can quickly identify weak or failing batteries under load.
UK stock with VAT invoice and fast delivery.
Insulation Testers
