Features: Real-time monitoring: Precise current and voltages display. Ideal for model aircraft enthusiasts, ensuring flight safety and performances optimisation. High-precise power meter dynamically displays battery voltages, current, and power with a refreshing rate of up to 3Hz. Bidirectional Detection: This ammeter automatically identifies charging and discharging states, with the screen clearly indicating current direction. Capacity Statistics: Double unit cumulative measurement supports double units for extended charging/discharging testing. Wide Voltages Compatibility: The device accommodates a broad voltages from 8 to 150V, adapting to diverse power supply environments. Specifications: Comonent: ABS Size: 60mm×38mm×13.5mm Support: suitable for 8-150V voltages Screen size: 1.5-inch LCD Accuracy: <0.2% Test resolution: 0.001V/0.001A Package Type： Bidirectional Coulomb Meter/ Bidirectional Coulomb Meter with Cable Refreshing rate up to 3Hz, rate current ±25A, measurement accuracy ±0.2%, resolution 0.001V/0.001A Note: Continuous current exceeding 25A may reduce measurement accuracy. The equipment needs to work in environment aboves 8V. Overloading is prohibited. It is recommended to use original to ensuring data reliability. Package Includes: 1PC 8-150V precise power meter note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution