This versatile Blue LED voltmeter module can measure voltages from 0.00V to 29.9V DC with an accuracy of ±0.1%. It is designed around a 3 x 0.36″ 7-segment LED display unit, and has a wide operating voltage of 3.6V-30V DC and an operating current of less than 8mA. It features an automatic decimal point placement to allow for a more accurate voltage reading below 10V.
The meter shares a common ground with the voltage being measured, and the input pin can usually be connected to the supply pin (if the voltage is above 3.6V), removing the requirement for a separate operating supply.
Two mounting holes are provided to allow for panel mounting.