The separate ports for remote temperature sensor, make battery temperature compensation more accurate Dual automatic restriction function when exceeding rated charging power and charging current When battery voltage drops to the setting voltage point of low voltage disconnect ,the low voltage protection indicator of the controller will flash. Fully protection against battery reverse polarity, no damage to the controller. Correct the connection to start normal operation. The controller detects the internal temperature through internal sensor, when the temperature exceeds the setting value, the charging current will lower d own followed by the decrease of temperature, so as to control the controller's temperature rise, when the internal temperature exceeds the setting over temperature protection threshold, the controller stops working and restores after thetemperature is lowered., Manufacturer: ZXZZAS