pH, Turbidity & Water Flow Sensors

A pH sensor is a device that helps measure how acidic or basic a liquid or solution is.

A flow sensor is a device that is used to measure the flow rate or velocity of a fluid or gas.

30 products

Buy Water Flow Sensor Online at Best Price in India

Water sensor bricks are made for water detection and can be used to detect leaks in liquids as well as rainfall and water levels. An excellent approach to find a leak, spill, flood, rain, etc. It is to connect a water sensor to an Arduino. A copper body, a water rotor, and a hall-effect sensor make up a water flow sensor. In the water flow sensor, the rotor rolls as water pass through it at varying rates, changing speed as a result. And the appropriate pulse signal is the output by the hall-effect sensor. 


Water Flow Sensor Prices in India

Sr. NoProductPrice
1. Horizontal Water Float Level Sensor Switch 

Rs. 187 

2. Float Switch Sensor For Water Level Controller With 2 Meter Wire

Rs. 242

3.Analog pH Sensor Electrode with Amplifier Circuit



Magnetic Float Sensor FS37A (Vertical)


5.High Sensitivity Water Sensor compatible with Arduino


6.Solenoid Valve 12v-24v (Blue)


7.YF-S401 1/8 inch Water Flow Sensor


8.Water Flow Sensor


9.Magnetic Float Sensor FSH01 (Horizontal)


10.Turbidity Sensor


11.Water Flow Sensor YF - SN402



Water Flow Sensor SEN-HZ21WA



Water Flow Sensor SEN-HZ43WB



Water Flow Sensor SEN-HZ21WI



DC 12V KK-P25/20 8KG Lifting Solenoid Electromagnet



Water Flow Sensor YF G1



Water Flow Sensor SEN-HZG1WA



Water Flow Sensor YF - DN50



Mini Water Flow Sensor (White)



Water Flow Sensor YF - DN40



Water Flow Sensor SEN-HZ41WC



Turbidity Liquid Particle Detection Sensor



Water Flow Sensor SEN-HZ43WA



Solenoid Valve 230V



Magnetic Float Sensor



Float Sensor Contact Type CSSP



Float Sensor CSDP (Double Pin)



Float Switch L-12 (White)



Steel Float Switch


Uses Of Water Sensors

  1. Finding contamination
  2. checking for leaks from septic systems
  3. measuring the nutrient content of surface waters
  4. Finding chlorophyll a, which can then be used to make forecasts (such as about dangerous algal blooms or cyanotoxins in watersheds)
  5. evaluation of the efficacy and application of wastewater and drinking water treatment
  6. keeping track of distribution systems

Applications of water sensor

  1. Measurement of water quality parameters like pH, water temperature, conductivity, dissolved oxygen, and turbidity are applications of water sensors.
  2. Monitoring for contaminants such as arsenic, bromine, calcium, magnesium, and chloride as well as cyanobacteria, cyanotoxins, chlorophyll, algae, nutrients (such as nitrogen and phosphorus), nutrient species (such as ammonia, nitrite, nitrate, orthophosphate, total nitrogen, and total phosphorus), and arsenic and bromine.
  3. Describe the physical properties of water, including its presence or absence, level, and discharge.

Types of Water Sensors

  1. Water detection sensor: A water detection sensor is used for detecting water. 
  2. Water pressure sensor: Simply said a pressure sensor transforms the applied pressure into a brief electrical signal that may be communicated and shown on a screen. Because of this, these are also frequently referred to as pressure transmitters. A 4 to 20 milliamps signal and a 0 to 5 Volts signal are two often utilized signals.
  3. Water quality sensor: PH, ORP, residual chlorine, turbidity, suspended particles, COD, BOD, conductivity, salinity, and dissolved oxygen sensors all fall under the umbrella term "water quality sensor."
  4. Water PH sensor: A pH sensor, which has a range of 0 to 14, aids in determining the water's acidity or alkalinity. Water begins to turn more acidic as the pH value falls below seven. Any value over seven indicates a higher alkaline level. Different pH sensors operate in different ways to gauge the water's quality.

Types of Water Sensors with Arduino

1. Water level sensor Arduino: 

Knowing when there is water nearby is crucial if you've ever had a water heater explode or attempted to build submersible electronics. This water level sensor makes it possible for you to achieve that. This sensor can be used to gauge the water level, keep an eye on a sump pit, track down rain, or find leaks.

2. Water flow sensor Arduino: 

We can determine the flow rate, monitor the amount of liquid that has flowed through a pipe, and control the flow as needed by combining a flow sensor with a microcontroller like Arduino.

3. Water sensor Arduino: 

The water sensor Arduino brick is made for water detection and can be used to detect leaks in liquids as well as rainfall and water levels. An excellent approach to find a leak, spill, flood, rain, etc. is to connect a water sensor to an Arduino.



1. How to use a water sensor Arduino? 

  • S, Vout(+), and GND are the three terminals of a water sensor (-). Here is the process of How to use a water sensor, Arduino
  • Connect your Arduino board's +Vs to +5v.
  • S should be connected to the Arduino board's digital PIN 8.
  • Connect the Arduino's GND to GND.
  • Connect the LED to the Arduino board's digital PIN 9.
  • Pin 8 on the Arduino gets LOW when a water sensor detects it, and the LED on the Arduino is then turned ON.

2. What is a water flow sensor? 

  • Large industrial facilities, and business and residential structures need a lot of water supplies. To fulfill this requirement, the public water supply system is utilized. It is necessary to measure the rate of flow of water to keep track of how much is provided and used. For this, water flow sensors are employed.


3. Can an IR sensor detect water? 

  • No, IR sensors are not very commonly used to detect water. Because the beam that infrared sensors emit must be broken by a non-transparent edge, which water does not have, infrared sensors are not frequently employed to detect surface water.


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