Review on 🔋 bayite Pack of 5 Three-Wire Calibratable DC 0~30V Red Digital Mini Voltmeter Gauge Tester: Reliable Car/Motorcycle Battery Monitor & Voltage Meter with 0.36" Red LED Display Panel by Terry Herrera

Very useful modules. It's nice to be able to measure and display circuit voltage so easily. I have made several battery powered devices and can see how well the system is working at the push of a button. I made several battery packs and connected this indicator to the circuit. With a touch of a button, I can easily see if it's time to replace or charge the batteries. The small size is amazing, I didn't expect them to fit my design so well. I was very happy with them and bought them in several different colors.