1. Adjustable Frequency
2. Voltage Display
3. Current Display
4. Inverter Compressor Detection
5. Single-wire Inverter Board Detection
6. Pulse Solenoid Valve Detection
7. Main Board Solenoid Valve Output Detection
8. Fixed-frequency Compressor Power Supply Current Observation
9. Dual-wire Inverter Board Detection
10. 6-pin Electric Valve Detection
11. 5-pin Electric Valve Detection
12. Electric Valve Sticking Repair
13. Household Air Conditioner Electronic Expansion Valve Drive Detection
14. Single/Dual Damper Detection
15. Damper Heating Wire Power Supply
16. Three-wire Fan Detection
17. Four-wire Fan Detection


1. Detection of Main Board Output Signal to Inverter Board (Multimeter Probe Interface) 2. Detection of 2K, 5K, 10K Temperature Probes 3. Buzzer Alarms for Compressor Short Circuit and Other Compressor Faults 4. Inverter Motor Drive for Three-wire Fan of Air Conditioner 5. Inverter Motor Drive for Three-wire Range Hood 6. If the Compressor is Jammed, the Instrument Will Attempt to Start It Three Times. If It Fails to Start, the Buzzer Will Alarm.

Package Included:
- 1 x Set of Inverter Refrigerator Detector