DC 0-99.9V Digital Display LED Buzzer Alarm Voltmeter Voltage Meter Lipo Voltage LED Indicator for RC Car Boat Battery

Features:

1. Stable product performance

2. The product is very suitable for DIY enthusiasts.

3.The product uses high-quality materials and the quality is guaranteed

4. The product has a wide range of usage scenarios

5. The product has a long service life.

Specifications:

1.Power supply voltage: 4-30V

2.Measurement range: 0-99.9V

3. Upper/lower limit setting range: 0.1-99.9V

4. Upper/lower limit output mode: Turn on the setting range to output high level, otherwise output low level.

5.Minimum resolution: 0.1V

7.Working temperature: -40~+85℃

8.Input reverse polarity protection: Yes

9.Installation: 2 screws 2 mm

10.Dimensions: Length 29 mm, width 23 mm and height 10 mm

Application:

1. DIY power supply, as a voltage display.

2. Voltage monitoring.

3.Equipment overvoltage or undervoltage alarm, or overvoltage or undervoltage protection.

4. Battery over-discharge protection.

5.For additional applications you develop.

Wiring instructions:

1. As a two-wire meter application, please send a short circuit board R1, connect the input voltage to the display input terminal. (When using two-wire measurement range does not exceed 30V)

2. As a three-wire head, use the R1 board from the table, connect the ground and power supply voltage to the 4-30V power supply socket. To measure the indirect ground voltage and test voltage input. (The pads of the two boards are the same, you can do one or two according to the actual wiring)

3.Adjust the panel potentiometer to display the value of the expected effect.

4.5PIN pins are used for extended output, K1, K2 are used for built-in external key switch drivers, keypad, two PIN through external buttons, the button function is the same as the same function button panel. LV is used as a lower limit alarm output, and the output is low when it is lower than the set value. HV upper limit alarm output, the output is higher than the set upper limit to a low value. LV, HV outputs are used to drive the control signal of the drive circuit, please add other load lights or relays.

5.Upper and lower limit setting method: Press two keys, the red light (HV) is on, press the + or – key to set the desired alarm limit voltage value. Then press the two keys at the same time, the yellow (LV) is on, press the + or – key to set the desired lower limit alarm voltage. Then press the two keys at the same time to exit the setting.

Note:

When using two wires, the measurement range and power supply range are the same, so do not exceed 30V measurement. When measuring voltage above 30V, use three wires!