Sensing different properties of liquids can be important in do-it-yourself irrigation systems, cooling systems and other liquid involved electronics projects. Flow meters are used to determine if liquid is flowing, and how much. Liquid level sensors are used to measure if levels are low, high, or with more complex sensors, the exact level. We carry a variety of these easy to use sensors!
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Flow Sensor – FS300A – 3/4″
$16.95This 3/4" sized flow sensor is used to measure liquid flow within a pipe and is ideally suited for monitoring water consumption in irrigation control… -
Brass Liquid Flow + Temperature Sensor
$12.95This high quality brass two-in-one sensor package is designed to monitor both liquid flow and liquid temperature within a pipe. These are ideally suited for… -
Adafruit STEMMA Capacitive Moisture Sensor
$12.95Light PacketThe Adafruit STEMMA Soil moisture sensor is a durable capacitive moisture sensor compatible with just about any microcontroller / single board computer. These are far… -
Liquid Flow Meter – YF-S201
$12.95This type of flow sensor is used to measure liquid flow within a pipe and is ideally suited for monitoring water consumption in irrigation control… -
Liquid Flow Meter – YF-S401
$11.95This simple flow sensor is very similar to its big brother, the YF-S201, but has been optimized for lower flow rates and features a higher… -
SparkFun Soil Moisture Sensor
$8.95Light PacketThe SparkFun Soil Moisture Sensor is a simple device designed to measure the moisture content of soil. It uses a very basic resistive sensing principle,… -
Float Switch
$6.95This simple sensor uses a reed switch and a magnet attached to a buoyant piece of plastic to determine if liquid is present at that… -
Float Switch – Right Angle
$5.95This simple sensor uses a reed switch and a magnet attached to a buoyant piece of plastic to determine if liquid is present at that…