200A high precision power analyzer designed to measure voltage, current, power, discharge capacity, and discharge time for aircraft applications, including multi-axis aircraft performance evaluation. Current measurement range: 0-200A, with continuous current support up to 50A and resolution of 0.01A. Operating voltage range: 4.8-60V (a separate 12V power supply is required when test voltage is below 5V). Voltage resolution: 0.01V. Energy measurement range: 0-6554Wh, with resolution of 0.01Wh. This device helps assess battery capacity through current readings, estimate discharge time via continuous current, and evaluate battery internal resistance using maximum instantaneous current to assist in circuit protection. The watt meter power analyzer verifies adequate operating voltage under load, helping prevent damage to batteries, motor controllers, motors, and wiring. It can be used to check battery charger functionality by connecting the battery and charger directly. Users can set cut-off voltage and evaluate battery capacity. It also detects receiver operation and actual working current to assess components such as UBECs. Equipped with a backlit LCD screen for clear visibility in various lighting conditions, including direct sunlight. Features plug-in auxiliary battery support and includes ventilation hole design for effective heat dissipation. Constructed with high-quality tin-copper core materials for strong load capacity and low resistance. Color: Black Material: Plastic Package Contents: 1 x Detection unit Note: The package includes only the items listed above. Light reflection and display differences may cause slight color variations between the image and the actual product. Measurement error allowance: +/- 1-3cm.