Battery Internal Resistance Tester ±120V 500Ω Measurement Range Four Wire Kelvin Connection Large Display Backlight Flashlight and Rechargeable Lithium Battery for Car Truck Motorcycle(IR502)

Features:Wider measurement range: ±120V battery voltage, 500Ω battery internal resistance measurement, can test more types of batteries,6. Automatic resistance range switching function, can automatically adapt to the resistance range of different batteries, convenient for users to test.3.2 Large screen: can display the main and auxiliary readings at the same time, so that users can understand the test results more clearly.It has a user self-calibration function to for ensure high for and accuracy of the test results.The device is equipped with a backlit display and LED flashlight lighting function, which is convenient for users to operate easily in dark environments.Powered by 1200mAh lithium battery, it is economical, environmentally friendly and practical, providing users with long-term use and convenience.Specifications:Part name: Battery internal resistance testerColor: Silver, RedModel: IR500, IR502 (optional)Material: ABSVoltage: 0.00V～±120VInternal resistance measurement: 0.000mΩ～500ΩMaximum input voltage: DC120V (non-polarity), AC cannot be inputMeasurement current: 50 mA～50 uAACMeasurement speed: 3 times/secondMeasurement signal frequency: 1KHzVoltage range selection: automatic/manual selectionInternal resistance range selection: automatic/manual selectionIndependent connection option: √Measurement way: four-wire Kelvin test wayUser self-calibration: √Factory self-recovery: √Battery selection standard: lead-acid battery, lithium battery, nickel-cadmium battery, alkaline battery, .Screen and size: 55*57mm TN black and white screen (IR500)55*57mm VA color display (IR502)Power supply: 3.7V lithium batteryLighting function: √Other functions: low voltage detection, white backlight automatically turns offPackage content:1 battery tester + 1 charging cable.

• [AUTOMATIC RESISTANCE SWITCHING] Equipped with an automatic resistance range switching function, this device adapts seamlessly to different battery resistances, ensuring a hassle-free testing experience.
• [LARGE DISPLAY FOR CLEAR RESULTS] The 2-inch large screen displays both main and auxiliary readings simultaneously, allowing users to easily interpret test results with .
• [USER SELF-CALIBRATION FUNCTION] Designed for precision, the self-calibration feature ensures accurate measurements every time, giving you confidence in your testing process.
• [BACKLIT DISPLAY AND LED LIGHTING] With a backlit display and integrated LED flashlight, this tester is perfect for use in low-light conditions, enhancing convenience during operation.