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Liquid / Flow Sensors
This sensor measures air temperature, relative humidity, barometric pressure, light intensity, rainfall, wind speed, and wind direction (ultrasonic).
Detect motion of close-up surfaces with this Breakout Garden compatible optical navigation breakout - great for floor tracking for ground dwelling robots!
The Grove - Water Level Sensor for Arduino can be used to measure the water level up to 10cm deep, with 5mm accuracy.
This sensor measures air temperature, humidity, barometric pressure, light intensity, precipitation, wind speed, wind direction, PM2.5, PM10 and CO2.
The Grove - TDS Sensor detects the Total Dissolved Solids (TDS) levels in the water which can be used to indicate the water quality.
This water sensor module is part of the Twig system. This sensor works by having a series of exposed traces connected to ground and interlaced between the grounded traces are the sens traces
This water leak detector is designed with industry standards. It's IP66 rated (waterproof and dustproof), and can be used in various application scenarios.
This water flow sensor is basically a small turbine whose output signal is a series of digital pulses.
This optical flow sensor detects motion of surfaces in front of it, from ~80mm.
The Liquid Level Sensor measures the height of water or other liquid and converts it to the voltage signal.