DC 12V Voltage Detection Charging Discharge Monitor Test Relay Switch Control Board Module

Features: Digital display DC voltage detection, control the relay output. Adjustable voltage limit: 0-99.9V. When the measured voltage is lower than the lower limit or higher than upper limit value, the relay works. Can be used for voltage detection switch, battery over/under voltage protector or discharge meter. Notice: The relay control panel features single mode voltage detection function. Max. trigger current is 10A(AC 277V, DC 30V), please don't connect it with load over DC 30V. This relay module is not suitable for lithium battery discharge. Polarity for voltage detection can't be connected reversely, user should connect the wire after power off.