The module controls the relay to turn on and off to control the output.
The operating voltage of the motherboard cannot be less than 7V, so the battery voltage must be ≥7V.
When the battery supplies power to the module, the output voltage is always equal to the battery voltage when the relay is closed.

Set to stop below 12.5V and start above 14V:
Set the protection value: Press "+" once to display the protection value.
Double-click "+" and the decimal point will flash. At this time, press "+, -" to change the value to 12.5. After 3 seconds of no operation, the module will automatically save and exit the setting mode.
Set the hysteresis value: Press "-" once to display the hysteresis value.
Double-click "-" and the decimal point will flash. At this time, press "+, -" to change the value to 1.5. After 3 seconds of no operation, the module will automatically save and exit the setting mode.

Factory reset
When the power is off, press and hold the two buttons at the same time, then power on.
At this time, the screen displays "888" indicating that the factory settings have been restored successfully. Factory setting protection value: 12V, hysteresis value: 2V

Package include:
2 x Digital low voltage protector module

• Input Voltage: DC 12-36V
• Display precision :0.1V
• Power Consumption: <1.5W
• Maximum Amperage before Breaker Trips: 20A
• Digital low voltage protector disconnect module with power-off protection, it will save your settings in the event of an unexpected loss of power
• Delay turn on, after a disconnect, the interval between turning on again. The time range that can be set is 0-999 seconds
• Automatic output disconnection,when the battery voltage falls below a preset level, the module automatically disconnects the output to protect the battery
• NOTE: This product is a voltage controller, which turns on and off the output through a relay, which only acts as a switch and cannot change the voltage. It's a protection switch module, not included batteries