DC 3-30V LED Voltmeter Module, 0.36" Blue

Universal digital voltmeter module with a range up to 30V. A convenient way to make your own meter in your device. Thanks to two conductors, the meter draws current from the conductors on which it performs the measurement. So it is very easy to use and its small dimensions allow it to be used even in very small projects or products. As the meter draws energy from the system, it is slightly burdened. Technical specifications Measured input voltage DC 3V 30V - the meter is powered from the measured voltage LED digit size: 0.36 " Display color: blue Refresh rate: 500ms / 1 measurement Accuracy of measurement: 1% Working temperature -10 * to 65 * C Conclusions: red - power plus (3-30V) black - minus Dimensions: 33x10x10mm (entire unit)