ST-3900CL AC/DC Clamp Meter

- True RMS measurement for accurate readings.
- 4000-count LCD display for precise measurements.
- Automatic measurement selection (voltage, current, resistance, frequency).
- Data hold function to freeze readings.
- Peak function for capturing maximum/minimum values.
- VAHz mode for frequency measurement in ACV and ACA modes.
- Continuity check and diode testing.
- Low battery indication and auto power-off.
- Safety design with shielded banana plugs and recessed input terminals.