Feature:1. PROTECTION FUNCTION: Voltage relay module support charging protection, discharge protection, surge protection, and undervoltage protection2. POWERFUL FUNCTION: The voltage module detect DC 099.9V with a minimum adjustment of 0.1V, you can use with confidence3. 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 control5. STABLE AND DURABLE: Voltage detection module come with stable structure, excellent performance and long service lifeSpecification:Item Type: Voltage Relay ModuleDetection Voltage Range: 0-99.9V(minimum adjustment 0.1V)Maximum Current of Relay Contact: 12A(leave space for use).Package List:1 x Voltage Relay Module