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A Sensor Module that detects Water.
The Grove - Flame Sensor can be used to detect fire source or other light sources of the wavelength in the range of 760nm - 1100 nm.
This switch is a device used to sense the level of liquid within a tank, it may actuate a pump, an indicator, an alarm, or other devices.
This Moisture Sensor can be used to detect the moisture of soil or judge if there is water around the sensor.
This is a simple to use PIR motion sensor with Grove compatible interface. Simply connect it to Stem shield and program it, when anyone moves in its detecting range, the sensor outputs HIGH on its SIG pin.
It is a Real-Time Clock (RTC) based on the clock chip DS1307 which supports the I2C protocol.