FainWan Mini Indicator Vertical Water Level Sensor Stainless Steel 45mm Float Switch healthJAPAN_March2024 Purifies air

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FainWan Mini Indicator Vertical Water Level Sensor Stainless Steel 45mm Float Switch healthJAPAN_March2024 Purifies airFainWan Mini Indicator Vertical Water Level Sensor Stainless Steel 45mm Float Switch HC 12 wireless serial port communication module is a new generation multichannel embedded wireless data transmission module. Its wireless working frequency band is 433. 4 473. 0MHz, multiple channels can be set, with the stepping of 400 KHz, and there are totally 100 channels. The maximum transmitting power of module is 100mW (20dBm), the receiving sensitivity is