4-Way 18650 Battery Holder Shipping:2-4 Weeks The digital multimeter (DMM) is

The digital multimeter (DMM) is an essential tool in every electronic enthusiasts arsenal

Power： 5V or 3

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Will be connected with COM1 when RELAY1 pin is set low and disconnected when RELAY1 is high

4-Way 18650 Battery Holder Shipping:2-4 Weeks The digital multimeter (DMM) isThis easy to use 16850 battery holder with 4 slots offers micro and type C charging inputs, and it can be installed with four 18650 batteries, five 5V 2A output ports, five 3. 3V 1A output ports, and one 5V USB output. It comes with overcharge and over discharge protections that greatly extend the lifespan of your 18650 battery. The onboard DIP switch allows users to switch between HOLD and NORMAL modes. In Normal mode, it auto shutdown when the