2024 Battery Testing 0~±120V: Internal Resistance Measurement for Battery Health Assessment! IR502

- Wider measurement range: ±120V battery voltage, 500Ω battery internal resistance measurement and can test more types of batteries, including lead-acid batteries, lithium batteries, nickel-cadmium batteries, alkaline batteries, etc. - 6 Resistance Range Automatic Switching function ,automatically adapt to the resistance range of different batteries - 3.2 clear large color screen and powered by 1200mAH lithium battery Specifications: Voltage：0.00V~±120V Internal Resistance Measurement：0.000mΩ~500Ω Maximum Input Voltage：DC120V (non polarized), cannot input AC Measuring Current：50mA~50uA AC Measurement Speed：3 times/second Measure Signal Frequency：1KHz Voltage Range Selection: Automatic/manual selection Selection Of Internal Resistance Range: Automatic/manual selection Autonomous Connection Optional： √ Measuring Method: 4 line Kelvin testing method User Self Calibration： √ Autonomous Factory Recovery： √ Battery Selection Criteria: Lead acid batteries, lithium batteries, nickel cadmium batteries, alkaline batteries, etc Screen And Size：55*57mm TN black and white screen(IR500) 55*57mm VA color screen(IR502) Power Supply：3.7V lithium battery