Water & Liquid Sensors

SKU: AF-464 | Brand: Adafruit

The eTape Liquid Level Sensor is a solid-state resistive sensor that measures fluid level without mechanical floats. As the liquid level rises, the hydrostatic pressure compresses the sensor envelope, decreasing its r...

SKU: SF-KIT-30716 | Brand: SparkFun

Add another automated planting zone to your AgXRP setup with this expansion for the AgXRP Starter Kit. It lets students and educators add a second pump and soil moisture sensor, so they can water a second plant indepe...

SKU: DF-SEN0451 | Brand: DFRobot

This industrial Gravity kit measures electrical conductivity in aqueous solutions, helping you evaluate water quality by tracking dissolved content or salinity. It is suited to hydroponics, aquaculture and environment...

SKU: DF-SEN0713 | Brand: DFRobot

This industrial-grade chlorophyll sensor measures chlorophyll concentration in water using the fluorescence principle, making it useful for algae monitoring in rivers, lakes, ponds, aquaculture systems and field resea...

SKU: DF-SEN0508 | Brand: DFRobot

This flexible capacitive liquid level sensor detects liquid through the wall of a non-conductive container, so it does not need to touch the liquid itself. It is designed for containers with a wall thickness of less t...

SKU: DF-SEN0709 | Brand: DFRobot

This industrial-grade ORP (Oxidation-Reduction Potential) sensor is built for reliable water quality monitoring in demanding environments. Its integrated probe and housing measure ORP from -1999 to 1999mV, with RS485 ...

SKU: DF-SEN0716 | Brand: DFRobot

This industrial non-contact liquid level sensor uses capacitive sensing to detect liquid through non-metallic container walls, so it does not need to touch corrosive, viscous or contaminated liquids. It is suited to l...

SKU: DF-SEN0715 | Brand: DFRobot

This compact capacitive sensor detects the presence or level of liquid through non-metallic container walls, so it does not need to touch the liquid. That helps avoid corrosion, contamination and media adhesion when m...

SKU: DF-SEN0676 | Brand: DFRobot

This 80GHz millimetre-wave radar module is built for precise, non-contact liquid level detection. Using Frequency Modulated Continuous Wave (FMCW) radar, it measures from above the liquid surface, making it suitable f...

SKU: DF-SEN0708 | Brand: DFRobot

This industrial-grade water quality sensor is designed for continuous pH monitoring in demanding environments. Its integrated probe and housing provide a robust, streamlined setup for measuring pH in non-corrosive, we...

SKU: DF-SEN0712 | Brand: DFRobot

This industrial-grade residual chlorine sensor is designed for precise, reliable water quality monitoring in demanding environments. Its integrated probe and housing measure residual chlorine concentrations, specifica...

SKU: DF-SEN0706 | Brand: DFRobot

This industrial-grade water electrical conductivity sensor combines the probe and housing into a single integrated unit for straightforward installation and reliable measurement. It uses an electrode constant of K=1 a...

SKU: DF-SEN0710 | Brand: DFRobot

Designed for industrial water-quality monitoring, this turbidity probe measures suspended particles using the 90° light scattering principle. The probe and housing are integrated into a compact IP68 unit, so it can be...

SKU: DF-SEN0681 | Brand: DFRobot

This sensor is designed for monitoring dissolved oxygen in seawater and other high-salinity applications. It uses fluorescence quenching rather than a traditional electrochemical cell, so it does not consume oxygen du...

SKU: DF-SEN0680 | Brand: DFRobot

This optical dissolved oxygen probe is designed for measuring DO levels in freshwater environments such as aquaculture tanks, rivers, lakes, reservoirs and treatment facilities. It uses fluorescence quenching, measuri...

SKU: DF-SEN0657 | Brand: DFRobot

This all-in-one weather station sensor brings seven key environmental measurements into a single outdoor unit: wind speed and direction, temperature, humidity, atmospheric pressure, light intensity and rainfall.It use...

SKU: DF-SEN0627 | Brand: DFRobot

This compact ultrasonic ranging module is made for accurate long-range distance measurement in outdoor, environmental and industrial monitoring projects. It measures targets from 25 cm to 800 cm, making it useful for ...

SKU: SF-SEN-27312 | Brand: SparkFun

This 50mm MagnetoPot provides potentiometric position feedback without needing a traditional external wiper or actuator. An outside magnet guides the built-in magnetic element, allowing the sensor to report position t...

SKU: SF-SEN-28867 | Brand: SparkFun

This rain gauge measures rainfall using a self-emptying bucket-type mechanism. Each time enough rain is collected, it triggers a momentary button closure that can be read by your electronics project.The switch closure...

SKU: AF-4746 | Brand: Adafruit

The thirst is real! Keep your plants happy and hydrated with the Plant Care Kit for micro:bit or CLUE. This kit will teach you all about how to keep your plants in good condition, by measuring the soil moisture conten...