DROK Digital Voltage Comparator DC 0-100V Voltage Monitor Controller Relay Module Panel Voltmeter with LED Display Charging Discharging Over&Under Voltage Protection

Measuring range: DC 0.0 - 99.9VLoad capacity: max load capacity of relay's normally open port: DC 0 - 30V / 10A, AC 0 - 250V / 10A; max load capacity of relay's normally closed port: DC 0 - 28V / 10A, AC 0 - 125V / 10AModule functions:Function 1:Voltage measurement: when select this function the relay will not operate, the display shows the current measurement voltage.Function 2:Charging monitoring: when the measured voltage is lower than the lower limit voltage, the relay operates; when the measured voltage is higher than the upper limit voltage, the relay disconnects.Function 3:Discharging monitoring: when the measured voltage is higher than the upper limit voltage, the relay operates; when the measured voltage is lower than the lower limit voltage, the relay disconnects.Function 4:Operate within the range: when the measured voltage is between the upper and lower limits, the relay operates; in other cases, the relay disconnects.Function 5:Operate outside the range: when the measured voltage is lower than the lower limit voltage, or the measured voltage is higher than the upper limit voltage, the relay operates; in other cases, the relay disconnects.Module interfaces:Input interfaces:DC+: power supply positiveDC-: power supply negativeVIN: detecting port of measuring voltageOutput interfaces:NO: relay's normally open interface. It will be hanging before the reply operates; it will short connect to COM after relay operates.COM: relay's common interfaceNC: relay's normally closed interface. It will short connect to COM before the relay operates; it will be hanging after the reply operates.Package includes:1 x Voltage Monitoring Controller.