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 to power the meter), voltage resolution: 0.01V. Energy measurement range: 0-6554Wh, resolution 0.01Wh. Helps assess battery capacity via current measurement, estimate discharge time through continuous current monitoring, and evaluate battery internal resistance using maximum instantaneous current data. This watt meter power analyzer allows verification of stable operating voltage under load conditions, helping prevent damage to batteries, motor controllers, motors, and wiring. Enables checking battery charger functionality by connecting directly to the battery and charger setup. Supports setting cut-off voltage for accurate capacity testing. Capable of detecting receiver operation and real-time working current to evaluate components such as UBECs. Features a backlit LCD screen for clear visibility in various lighting conditions, including direct sunlight. Includes plug-in auxiliary battery connector and built-in ventilation hole design for effective heat dissipation. Constructed with high-quality tin-coated copper core materials for enhanced conductivity, low resistance, and strong load handling capability. Color: Black Material: Plastic Package Contents: 1 x Power Analyzer Note: The package includes only the items listed above. Other accessories shown in images are not included. Due to lighting effects and differences in display settings, actual product color may vary slightly from images. Measurement error allowance: +/- 1-3cm.