Photo 1 of XH-M203 Full Automatic Water Level Controller, Liquid Level Detection Sensor Module for Water Conservancy Projects Relay Output AC/DC 12V

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Photo 1 of XH-M203 Full Automatic Water Level Controller, Liquid Level Detection Sensor Module for Water Conservancy Projects Relay Output AC/DC 12VPhoto 2 of XH-M203 Full Automatic Water Level Controller, Liquid Level Detection Sensor Module for Water Conservancy Projects Relay Output AC/DC 12V