Product Introduction
The GM-5kV Insulation Resistance Tester by Wuhan UHV Power Technology Co., Ltd. is designed to support the growing demands of China's electric power industry. It is crucial for preventive maintenance and insulation diagnosis of electrical equipment like transformers and generators. The tester is suitable for high-voltage environments and offers features such as large capacity, strong anti-interference, and portability.

Product Features
1. Anti-Interference Ability: Can measure insulation resistance parameters at high-voltage substations without disconnection.
2. Short-Circuit Current: Typical value of 10mA, suitable for large capacity tests.
3. Measurement Range: From 0.01MΩ to 1999GΩ with high accuracy.
4. Voltage Output: Adjustable from 0V to 5kV.
5. Acousto-Optic Reminder: Includes timing functions for recording and analyzing measurements.
6. Imported Components: Ensures measurement accuracy.
7. Portability: Compact and lightweight design.
8. Durability: Made with solid materials for extended service life.

Technical Parameters
Output Voltage Levels: 0.1kV, 0.25kV, 0.5kV, 1kV, 2.5kV, 5kV
Test Voltage Accuracy: ±(5%＋10V)
Short-Circuit Current: 10mA

Range and Accuracy
Resistance measurement ranges from 0.01MΩ to 1999GΩ with varying accuracy levels depending on the range.

Basic Parameters
Anti-Interference: 2mA (50/60Hz)
Time and Alarm Functions: Stopwatch with a maximum of 19 minutes and 59 seconds, with audible alarms.
Display: Three LCD digital meters for voltage, resistance, and time.
Power Supply: Built-in rechargeable lithium battery with AC adapter.
Environment: Operates in temperatures from -20℃ to +40℃ and humidity from 20% to 90%.
Dimensions: 315×240×180mm
Weight: 5.5kg

Test Interface and Accessories
The document includes images and descriptions of the test interface and accessories provided with the tester.