1、PROTECTION FUNCTION: Voltage relay module support charging protection, discharge protection, surge protection, and undervoltage protection 2、POWERFUL FUNCTION: The voltage module detect DC 0‑99.9V with a minimum adjustment of 0.1V, you can use with confidence 3、CURRENT INFORMATION: Relay ON Off module relay contact maximum current is 12A(leave space for use) 4、STABLE CONTROL: Battery charge discharge timing module has fixed point pulse, stable performance, charge and discharge control 5、STABLE AND DURABLE: Voltage detection module come with stable structure, excellent performance and long service life Item Type: Voltage Relay Module Detection Voltage Range: 0-99.9V(minimum adjustment 0.1V) Maximum Current of Relay Contact: 12A(leave space for use) 1 x Voltage Relay  Module