TSIR04 – 4 Channel Outputs- 4 optically Isolated Inputs Wi-Fi Smartphone Relay

This is a TSIR04 Wi-Fi version relay board with optically isolated inputs and OLED display and temperature sensor port. You can easily control this relay board by your computer or smartphone using Wi-Fi. The communication method also can be changed easily. Replace the WiFiBee module with a BluetoothBee, it becomes a Bluetooth relay. It will be a USB…

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