Water & Liquid Sensors

SKU: DF-SEN0308 | Brand: DFRobot

The Gravity Analogue Waterproof Capacitive Soil Moisture Sensor from DFRobot measures soil moisture using capacitive sensing rather than resistive probes, offering significantly better corrosion resistance and longer ...

SKU: DF-SEN0161 | Brand: DFRobot

You may check the latest version - Gravity: Analog pH Sensor/Meter Kit V2 to meet your requirements and Liquid Sensor Selection Guide to get better familiar with our liquid sensor series.Need to measure water quality...

SKU: DF-SEN0205 | Brand: DFRobot

A photoelectric liquid level sensor that uses optical principles to detect the presence or absence of liquid. With no moving parts, it requires minimal calibration and offers high sensitivity and long service life. Th...

SKU: DF-SEN0189 | Brand: DFRobot

The Gravity Analog Turbidity Sensor measures water clarity by detecting the level of suspended particles. It works by measuring light transmittance and scattering rate, which change with the amount of total suspended ...

SKU: DF-SEN0244 | Brand: DFRobot

The Gravity Analog TDS Sensor is an Arduino-compatible kit for measuring Total Dissolved Solids (TDS) in water. TDS indicates how many milligrams of soluble solids are dissolved per litre — the higher the value, the l...

SKU: DF-SEN0257 | Brand: DFRobot

The Gravity Analog Water Pressure Sensor measures water or gas pressure and outputs a linear 0.5–4.5 V analogue signal proportional to the applied pressure (0–1.6 MPa). Using the DFRobot Gravity 3-pin interface, it co...

SKU: DF-SEN0114 | Brand: DFRobot

A resistive soil moisture sensor that reads the water content of surrounding soil by measuring electrical resistance between its two probes. Wetter soil conducts more easily (lower resistance), while dry soil conducts...

SKU: EF-EF04097 | Brand: ElecFreaks

The Octopus Capacitive Soil Moisture Sensor uses capacitive sensing to detect soil moisture levels, avoiding the corrosion problems common with resistive sensors for a much longer service life. It outputs an analogue ...

SKU: DF-SEN0169-V2 | Brand: DFRobot

DFRobot Gravity: Analog pH meter pro V2 is specifically designed to measure the pH of the solution and reflect the acidity or alkalinity. It is commonly used in various applications such as aquaponics, aquaculture, an...

SKU: EF-EF04027 | Brand: ElecFreaks

Octopus Soil Moisture Sensor Brick can read the amount of moisture present in the soil surrounding it. It's a low tech sensor, but ideal for monitoring an urban garden, or your pet plant's water level. This is a mu...

SKU: DF-DFR0300 | Brand: DFRobot

The Gravity EC (Electrical Conductivity) Sensor measures the conductivity of aqueous solutions, providing an analogue output for Arduino and compatible microcontrollers. EC measurement is essential for monitoring wate...

SKU: DF-SEN0193 | Brand: DFRobot

The Gravity Analogue Capacitive Soil Moisture Sensor measures soil moisture using capacitive sensing rather than resistive probes, providing significantly better corrosion resistance and longer service life. Made from...

SKU: DF-SEN0217 | Brand: DFRobot

INTRODUCTION   The Gravity Water Flow sensor measures the rate of a liquid flowing through it. The YF-S201 water flow sensor consists of a plastic valve body, flow rotor and hall effect sensor. It is usual...

SKU: DF-SEN0161-V2 | Brand: DFRobot

The Gravity Analog pH Sensor/Meter Kit V2 is designed to measure the pH of liquids, indicating acidity or alkalinity on a scale of 0–14. It's commonly used in aquaponics, aquaculture, hydroponics, and environmental wa...

SKU: DF-KIT0139 | Brand: DFRobot

This throw-in type liquid level transmitter adopts high-performance pressure sensing chip, with advanced circuit processing and temperature compensation technology. The level transmitter receives different pressures a...

SKU: DF-SEN0165 | Brand: DFRobot

In the ever-increasing need and awareness for health and safety, water has become a focus point for proper disinfection treatment as aftereffects of industrialization can become a danger for contamination of water...

SKU: SF-SEN-13637 | Brand: SparkFun

A simple breakout board for measuring moisture in soil and similar materials. The two large exposed pads act as probes — functioning as a variable resistor where higher moisture means better conductivity, lower resist...

SKU: EF-EF04024 | Brand: ElecFreaks

This is a Rain/steam sensor from ElecFreaks. This steam sensor can be connected to the Arduino IO Expansion shield directly. The output voltage will increase when the humidity of the sensor surface goes up.You even co...

SKU: DF-SEN0237-A | Brand: DFRobot

This is a dissolved oxygen sensor kit, which is compatible with Arduino microcontrollers. This product is used to measure the dissolved oxygen in water, to reflect the water quality. It is widely applied in many wa...

SKU: DF-SEN0169 | Brand: DFRobot

This is a professional Arduino pH Sensor Meter Kit with industrial electrode. It has built-in simple, convenient , practical connection and long life (up to 1 year), which makes it very suitable for long term onli...