Function:
When board connected the power supply￡? IN signal terminal connected the measured voltage￡? then display the measured voltage value;
Short press K1 can enter setting threshold voltage￡? 6 times for a cycle(former 3 times are for lower limit and the other 3 times are for upper limit);
When the measured voltage is lower than the lower limit or higher than upper limit value￡? the relay works and the buzzer alarms.
In the range of setting value￡? the relay stop working and the buzzer will not alarm.

Specifications:
Output Capacity: Can Control the Load within DC 30V or AC 220V 10A
Power Supply Voltage: DC 12V
Test Voltage Range: DC 0-30V
Static Current: 20mA
Working Current: 50mA
Working Temperature: -40-85??C
PCB Size: 64 * 40 * 18mm / 2.52 * 1.57 * 0.7in (L * W * H)
PCB Weight: 27g / 0.96oz

Package List:
1 * Switch Control Module