IR502/IR500 ±120V 500Ω Battery Internal Resistance Tester This versatile tester is ideal for analyzing the internal resistance and voltage of various battery types, including lead-acid, lithium, nickel-cadmium, and alkaline batteries. Features: Wide Measurement Range: Measures battery voltage up to ±120V and internal resistance up to 500Ω, accommodating a broad range of battery types. Automatic Switching: The 6 resistance range feature automatically adjusts to suit different battery resistance ranges, offering convenience and ease of use. Dual Display: The large 3.2" screen displays dual-digit readings simultaneously for enhanced clarity of test results. Self-Calibration: Users can calibrate the device themselves to maintain high precision and accuracy. Enhanced Visibility: With a backlight display and LED flashlight, the tester is perfectly suited for operations in dimly lit environments. Long Battery Life: Equipped with a 1200mAh lithium battery, this device is both economical and eco-friendly, ensuring prolonged use and convenience. Specifications: Brand: AV TOOLTOP Models: IR500 / IR502 Voltage Measurement: 0.00V to ±120V Internal Resistance Measurement: 0.000mΩ to 500Ω Maximum Input Voltage: DC120V (not suitable for AC) Measuring Current: 50mA to 50μA Measurement Speed: 3 times per second Signal Frequency: 1KHz Voltage Range Selection: Automatic/Manual Connection Option: √ (Four-line Kelvin testing method) Self Calibration and Factory Recovery: √ Battery Compatibility: Lead-acid, Lithium, Nickel-cadmium, Alkaline Screen Size: 55x57mm (TN black and white for IR500, VA color for IR502) Power Supply: 3.7V lithium battery Lighting: √ Additional Functions: Low voltage detection, automatic shutdown Package Options: Type A: IR500 1 x IR500 Battery Tester 1 x English User Manual 1 x Charging Cable 1 x Color Package Box Type B: IR502 1 x IR502 Battery Tester 1 x English User Manual 1 x Charging Cable 1 x Storage Cloth Bag 1 x Color Package Box
