These versatile LED voltmeter modules can measure voltages from 0.00V to 29.9V DC with an accuracy of ±0.1%. Designed around 3 x 0.36″ 7-segment LED display units, they have a wide operating voltage of 3.8V-30V DC and an operating current of less than 15mA. They feature automatic decimal point placement to allow for a more accurate voltage reading below 10V.
Two LED colours are available: Red or Blue.
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 3.8V), removing the requirement for a separate operating supply.
Two mounting holes are provided to allow for panel mounting.