Liquid Sensors

DFRobot provides varieties of liquid sensors, including PH, ORP, ec meter, conductivity, turbidity,TDS, dissolved oxygen, pressure, flow, liquid level sensor.

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Gravity: Analog Spear Tip pH Sensor / Meter Kit Introduction This spear tip pH sensor/meter kit can directly stab into semisolid material to measure the pH value. It can be used to measure pH value of wet soil and various foods. The pH value of the soil is an important factor affecting the growth of plants. Suitable pH value for different plants differ from each other. The pH value of foods, such as fruit, meat and vegetable are also an im..

$99.00 SKU:SEN0249 In Stock
Gravity: Analog Dissolved Oxygen Sensor / Meter Kit For Arduino Introduction 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 water quality applications, such as aquaculture, environment monitoring, natural science and so on. You may also check Liquid Sensor Selection Guide to get..

$169.00 SKU:SEN0237-A In Stock
Gravity: Analog Electrical Conductivity Sensor / Meter(K=10) Introduction DFRobot Gravity: analog electrical conductivity sensor/meter(K=10) is particularly used to measure the high electrical conductivity liquid, such as seawater, concentrated brine, etc. The measurement range is up to 100ms/cm. This product is suitable for the water quality application of mariculture, for example, marine fisheries, marine aquariums. You may also check Liquid Sensor ..

$79.90 SKU:DFR0300-H In Stock
Gravity: Analog Electrical Conductivity Sensor /Meter V2 (K=1) Introduction DFRobot Gravity: analog electrical conductivity meter V2 is specially used to measure the electrical conductivity of aqueous solution, and then to evaluate the water quality, which is often used in water culture, aquaculture, environmental water detection and other fields. You may also check Liquid Sensor Selection Guide to get better familar with our liquid sensor s..

$69.90 SKU:DFR0300 In Stock
Gravity: Analog ORP Sensor Meter For Arduino Introduction 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 via direct contact. Water is a critical control point of contact where proper treatment can greatly reduce these microbes, thereby reducing the chances of illness and pol..

$89.05 SKU:SEN0165 In Stock
Gravity: Analog pH Sensor / Meter Kit For Arduino Introduction You may check latest version - Gravity: Analog pH Sensor/Meter Kit V2 to meet your requirements and Liquid Sensor Selection Guide to get better familar with our liquid sensor series. Need to measure water quality and other parameters but haven't got any low cost pH meter? Find it difficult to use with Arduino? DFRobot analog pH meter, specially designed for Arduino controllers and..

$29.50 SKU:SEN0161 In Stock
Gravity: Analog pH Sensor / Meter Pro Kit For Arduino Introduction 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 online monitoring. It has an LED which works as the Power Indicator, a BNC connector and PH2.0 sensor interface. To use it, just connect the pH sensor with BND connector, then ..

$56.95 SKU:SEN0169 In Stock
Gravity: Analog pH Sensor/Meter Kit V2 Introduction DFRobot Gravity: Analog pH meter 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, and environmental water testing. As an upgraded version of pH meter V1, this product greatly improves the precision and user experience. The onboard voltage regulator chip su..

$39.50 SKU:SEN0161-V2 In Stock
Gravity: Analog TDS Sensor/Meter for Arduino Introduction This is an Arduino-compatible TDS sensor/Meter Kit for measuring TDS value of the water, to reflect the cleanliness of the water. It can be applied to domestic water, hydroponic and other fields of water quality testing. You may also check Liquid Sensor Selection Guide to get better familar with our liquid sensor series. TDS (Total Dissolved Solids) indicates ..

$12.90 SKU:SEN0244 In Stock
Gravity: Analog Turbidity Sensor For Arduino Introduction The arduino turbidity sensor detects water quality by measuring level of turbidity. It is able to detect suspended particles in water by measuring the light transmittance and scattering rate which changes with the amount of total suspended solids (TSS) in water. As the TTS increases, the liquid turbidity level increases. You may also check Liquid Sensor Selection Guide&nbs..

$9.90 SKU:SEN0189 In Stock
Gravity: Analog Water Pressure Sensor Introduction This is a water pressure sensor adopts DFRobot Gravity 3-pin interface. It supports standard 5V voltage input and 0.5~4.5V linear voltage output. It is compatible with multiple Arduino controllers. Coordinate with a DFRobot Gravity IO Expansion Shield, the water pressure sensor can be plugged into an Arduino board, wiring-free. Put it with Solenoid Valve, Water Turbine Generator and ..

$12.90 SKU:SEN0257 In Stock
Gravity: Digital Water Flow Sensor For Arduino - 1/8" Introduction The Water Flow sensor measures the rate of a liquid flowing through it. The YF-S401 water flow sensor consists of a plastic valve body, flow rotor and hall effect sensor. It is usually used at the inlet end to detect the amount of flow. When liquid flows through the sensor, a magnetic rotor will rotate and the rate of rotation will vary with the rate of flow. The hall effect sensor w..

$8.90 SKU:SEN0216 In Stock
Gravity: Non-contact Digital Water / Liquid Level Sensor For Arduino Introduction This is a non-contact water / liquid level sensor for Arduino. It utilizes advanced signal processing technology by using a powerful chip (XKC-Y25-T12V) with high-speed operation capacity to achieve non-contact liquid level detection. No contact with liquid makes the module suitable for hazardous applications such as detecting toxic substances, strong acid, strong alkali and all k..

$9.90 SKU:SEN0204 Out Of Stock
Gravity: Non-contact Liquid Level Switch Introduction This non-contact liquid level switch can be triggered when the liquid level fall below the sensor attached to the outside surface of a non-metal container. Unlike traditional liquid level sensors, it does not need to be immersed into liquid. So, in this way, liquid will not be contaminated and the life of the sensor will not be reduced so fast because of the contact betw..

$14.40 SKU:FIT0212 In Stock
Gravity: Photoelectric Water / Liquid Level Sensor For Arduino Introduction This is a photoelectric water liquid level sensor that is operates using optical principles. The advantages of this photoelectric water liquid level sensor are good sensitivity and no need for mechanical parts - meaning less calibration! The corrosion resistant probe is easily mounted and can handle high temperature and high pressure. The arduino liquid sensor is equipped with an in..

$5.50 SKU:SEN0205 In Stock
Gravity: Steam Sensor Introduction This is a steam(water)sensor from DFRobot. 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. Notice:The new version of analog sensor port pin mapping has been changed as the following two features. Warning: The connector is not waterproof, plea..

$1.99 SKU:SEN0121 In Stock

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