The HZSL-36 is a high-precision handheld instrument that integrates multiple measurement functions, including phase meter verification for main transformer differential protection, electrical parameter testing, metering wiring detection, harmonic content testing, and oscilloscope functionality. Utilizing DSP AC sampling, it simultaneously measures 3 voltage and 6 current channels with a 9-channel vector display.

| Parameter | Value | Parameter | Value |
|---|---|---|---|
| Voltage Channels | 3 channels | Current Channels | 6 channels |
| Voltage Range | 0 to 450 V | Current Range | 0 to 6 A |
| Voltage Resolution | 0.01 V | Current Resolution | 0.0001 A |
| Phase Range | −180° to +180° | Harmonic Analysis | 2 to 21 times |
| Voltage Accuracy | ±0.2% | Current / Power Accuracy | ±0.2% |
| Phase Angle Accuracy | ±1° | Operating Temperature | −15°C to +40°C |
| Weight | 1.8 kg | Dimensions | 250 mm × 160 mm × 60 mm |