Accurate Measurement: Boasts (3%+5) accuracy for resistance readings up to 5G, ensuring precise insulation tests. Insulation Resistance Meter Digital Megometer Versatile Voltage Range: Measures insulation resistance from 0M to 5G across 100V to 1000V test voltages for comprehensive testing. Comprehensive Testing: Includes PI and DAR measurements, making it ideal for a wide range of electrical equipment. Design: Features a robust build with an auto discharge and overload indication for safe operation. Friendly Interface: Equipped with a backlit LCD, light alarm, and buzzer for clear readouts and alerts. Hign-concerned Chemical:None Dimensions:150mmx100mmx71mm Testing Voltage:30V-750V Measuring Range:5.5G Model Number:UT501A Display Type:Digital Only The product appearance and printed words depending on the batch, but this does not affect use. Colour:As Shown Material:ABS Package Contents: 1 * resistance tester 1Set * accessories 1 * Chinese and English instruction manual Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.