Technical Specifications:
 Insulation Resistance Measurement:
- Test voltages: 
250 V / 500 V 
 Continuity & Resistance Testing:
- Test current: 200mA DC
- Measurement range: 
1 to 99.99kΩ
 Loop & Line Impedance Measurement:
- Voltage range: 50V to 440V
- Impedance range: 0.01Ω to 2000Ω
- No-trip loop test for RCD protection
 Earth Resistance Measurement:
- Methods: 2-pole and 3-pole testing
- Range: 0.01Ω to 2000Ω
Residual Current Device (RCD) Testing:
- Test currents: 
30mA, 100mA, 300mA, 500mA and 650mA
- Measures trip time and trip current
- Auto and manual testing modes
 Voltage & Frequency Measurement:
- AC/DC voltage range: 
2.0 to 550.0 VAC – 0.0 to 800.0 VDC
- Frequency range: 
30.0 to 999.9 Hz / 0.1 Hz /
- Phase Rotation: 
45 to 550 V — 45 to 65 Hz