A professional-grade instrument designed for precise measurement of internal resistance, voltage, and temperature to evaluate the health status of lead-acid and lithium batteries. It also serves as an effective tool for ESR parameter measurement in electrolytic capacitors.

| Parameter | Specification |
|---|---|
| Measurement Range | Resistance: 0.000 mΩ–3.100 Ω; Voltage: 0.000 V–±71.00 V; Temp: −10.0°C–60.0°C |
| Resolution | Resistance: 1 µΩ; Voltage: 1 mV; Temp: 0.1°C |
| Test Method | 1 kHz AC 4-terminal test method |
| Dimensions | 190 mm × 121 mm × 51 mm |
| Max Input Voltage | DC 70 V |
| Response Time | 200 ms |