Features: This Battery Coulometer accurately test voltage ,current ,power, temperature, ampere bour,remaining capcaity,duration for time & charing for time. The display and measurement module are connected through a for 3m 4P co-directional telephone line, the longest can be extended to 30 meters, which is more convenient to install. With OVP/OTP/LVP/OPP/OCP/NCP function. The 2.4-inch high-definition color screen, the color matching is beautiful and generous, and the font is larger and clearer. The mobile APP can view the real-time curve and historical curve of voltage and current, and historical data can be exported. Specifications: Material: ABS Voltage Measuring Range: 10V-120V Current Measuring Range: 0-100A Temperature Measuring Range: -20-120 Power Measuring Range: 0-72KW Note: Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1 Set Battery Coulometer