pH sensor

This sensor allows you to monitor water pH.

It is included in Open Garden Hydroponics and Open Aquarium Aquaponics.
Check below the product specifications.


The Smart Water model has been conceived to facilitate the remote monitoring of the most relevant parameters related to water quality. With this platform you can measure more than 5 parameters, including the most relevant for water control such as dissolved oxygen, oxidation-reduction potential, pH, conductivity and temperature.

Sensor type: Combination electrode
Measurement range: 0~14pH
Temperature of operation: 0~80ºC
Zero electric potential: 7±0.25p
Response time: <1min
Internal resistance: 250MΩ
Repeatability: 0.017
PTS: >98.5
Noise: <0.5mV
Alkali error: 15mV
Reader accuracy: up to 0.01 (in function of calibration)

You will be able to calibrate this sensor using PH Calibration Kit

For more information, see the following article.

Waspmote Quick Tutorial
Waspmote Smart Water Technical Guide
Waspmote Site 
Waspmote Technical Guides 
Sensor Boards Technical Guides 
Networking Guides 
Developers Forum 
50 Applications with Waspmote 
FAQ: Waspmote Vs. Arduino

You can also use it in our Open Garden platform and in our Open Aquarium platform.

Related Tutorials

Open Aquarium has been designed to help you to take care of your fish by automating the control and maintenance tasks that take place in the fish tanks and ponds.

Open Aquarium consists of two different and complementary kits: Basic and Aquaponics, and many several extra accessories.

The Open Garden platform consist of three different kits, each ready for a specific kind of growing plant scenario: indoor (houses and greenhouses), outdoor (gardens and fields) and hydroponics (plants in water installations).

The platform allows to control the state of the plants by sensing several parameters.

If you are interested in Internet of Things (IoT) or M2M projects check our open source sensor platform Waspmote which counts with more than 100 sensors available to use 'off the shelf', a complete API with hundreds of ready to use codes and a low consumption mode of just 0.7µA to ensure years of battery life.

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