Features: This is a multi-function DC meter based on 2.4G wireless data transmission technology. It can measure miscellaneous parameters such as voltage, current, power, charge and discharge capacity, watt-hour, time, and temperature. It has over-current protection, under-voltage protection, and limited protection and other protection functions. The instrument can automatically identify the direction of the current, and the battery capacity can be monitored in real time. The instrument uses TFT LCD display, display information is comprehensive, user-friendly and better interaction. Specification: Model VAT-1030 Voltage measurement range 0~100V DC Voltage resolution 0.01V Current measurement range 0~30A Current resolution 0.01A Relay Internal Temperature measurement range -20~120 ℃ Capacity display range 0%~100% Power measurement range 0~200kW Power resolution 0.001W AH measurement range 0~2000kAH Capacity resolution 0.001AH Watt-hour measurement range 0~4000kWH Watt-hour accuracy 0.001WH Time measurement range 0 ~ 99 days Time resolution 1 second Communication channel range A ~ Z (26 channels) Communication channel range 01~99 Voltage accuracy ± 2% + 3 words Current accuracy ± 5% + 10 words Sampling rate 5 times / second Communication distance up to 10 meters Measurement module power consumption About 0.4W Display module power consumption 0.5W NCP 0 ~ 300A (negative over-current protection setting) OCP 0 ~ 300A (positive over-current protection setting) OVP 0 ~ 100V (over-voltage protection setting) LVP 0 ~ 100V (under-voltage protection setting) protection delay time 0 ~ 10s Weight 315g / 11.1oz (approx.) Package list: 1 * Meter Display 1 * Meter Module 1 * Data Cable 1 * Temperature Sensor Probe 1 * 2P Cable 1、This is a multi-function DC meter based on 2.4G wireless data transmission technology. 2、It can measure miscellaneous parameters such as voltage, current, power, charge and discharge capacity, watt-hour, time, and temperature. 3、It has over-current protection, under-voltage protection, and limited protection and other protection functions. 4、The instrument can automatically identify the direction of the current, and the battery capacity can be monitored in real time. 5、The instrument uses TFT LCD display, display information is comprehensive, user-friendly and better interaction.