




⚡ Power up your precision — test smarter, not harder!
The ET3500B is a high-voltage insulation resistance tester offering a broad voltage range up to 10KV and resistance measurement from 0.5MΩ to 5TΩ. Featuring a vibrant touch color screen combined with button and knob controls, it delivers intuitive one-button testing and rich real-time data display. Its rugged IP65-rated double shell ensures durability in harsh environments, while a large rechargeable lithium battery supports extended field use. Advanced functions include automatic discharge, live voltage monitoring, test timing, and storage of 1000 test records with USB upload capability for efficient data management.




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