Feature: 1. Parameter Display: The multifunction coulomb meter can display real time voltage, real time current, real time power, remaining capacity, use time and other physical parameters. 2. Display and Sensor: This coulomb meter adopts 12864 LCD display, clear and intuitive. With Hall sensor, supports charging and discharging bidirectional current detection. 3. Parameter Settings: After connecting to Bluetooth, you can view all relevant data and curve on the phone, support setting parameters and operating functions through mini program. 4. Applicable Scenarios: This high accuracy coulomb meter is used for monitoring the output voltage and current, as well as for charging and discharging battery, convenient and practical. 5. Durable Materials: This Bluetooth coulomb meter is made of industrial grade ABS and flame retardant PVC materials, which are resistant to impact, low temperature, safe and reliable. Specification: Item Type: Coulomb Meter Material: ABS, PVC Specification: 120V 100A. Package List: 1 x Monitor 1 x Hall Sensor 1 x 3 Meter Shielded Cable 1 x 50cmXH2.54 Red Black Cable 1 x Ribbon Cable 1 x User Manual