This high- bidirectional current meter is designed to measure voltage and current in real-time, displaying positive/negative values for charging/discharging scenarios. Ideal for testing battery capacity, solar systems, RC models, and electric vehicles (EVs), it ensures accurate statistics for charging/discharging cycles. This ammeter is suitable for measuring current and voltage. It is bidirectional and displays positive and negative current values. It is suitable for chargers and other applications with high accuracy. It can be used to calculate battery charge and discharge capacity, etc. Please Note That: 1. Working for a long time above 25A may affect accuracy. 2. Does not work below 8V. Unable to measure voltages below 8V. 3. Do not open the , as the thickness of the solder affect its accuracy. Because each of them has undergone separate calibration before leaving the factory. Please use the plug for wiring, 4. OLED screens may shatter upon impact, please handle with care. 5.The Analyzer can work in charger or discharge ircuit,screen display ositive or negative current. 6. the rest button to switch the display interface. Long to reset the capacity to zero. 7. ****The capacity of charging or discharging is independently accumulated, and if you use it for an electric motorcycle, you may be to measure the amount of energy recovered**** Screen size: 1.5-inch LCD Refresh rate: 3Hz Voltage range: 8-150V Current withstand: ±2 (50A instantaneous, within 3 seconds) Accuracy: <0.2% Connector: Gold-plated Test resolution: 0.001V/0.001A Color: Black Material: plastic Package Contents: 1 x Tester 1 x Input Cable 1 x Output Cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.