It is a Digital Tester/Relay Controller, Operating voltage: DC 8 ~ 28V (limitation DC 8 ~ 32V), Load capacity: maximum load capacity of relay's normally open port: DC 0 ~ 30V / 10A, AC 0 ~ 250V / 10A; maximum load capacity of relay's normally closed port: DC 0 ~ 28V / 10A, AC 0 ~ 125V / 10A, Application:Suitable for electronic equipment,industrial equipment etc.

• Operating voltage: DC 8 ~ 28V (limitation DC 8 ~ 32V)
• Consumption: 0.2W (turn off the display: 0.1W; relay-operating: 0.6W)
• Operating temperature: recommend -20°c ~ 60°c (limitation -30°c ~ 70°c)
• Measuring range: DC 0.0 ~ 99.9V
• Load capacity: maximum load capacity of relay's normally open port: DC 0 ~ 30V / 10A, AC 0 ~ 250V / 10A; maximum load capacity of relay's normally closed port: DC 0 ~ 28V / 10A, AC 0 ~ 125V / 10A
• Module size: 46 x 70 x 20mm

• 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.

• Input interfaces:
• DC+: power supply positive
• DC-: power supply negative
• VIN: detecting port of measuring voltage
• Output 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 interface
• NC: relay's normally closed interface. It will short connect to COM before the relay operates; it will be hanging after the reply operates.

• Provide five functions to meet more application requirements.
• Can set the voltage's upper and lower limits.
• The measurement accuracy is ± 0.1V.
• Add the pull-off delay and break delay functions.
• All setting parameters can be automatically saved; power-down will not lose the settings.
• Redesigned power supply module to ensure the stability of the module over a wide voltage range.

• 1 x Voltage Monitoring Controller (Digital Tester)