# Turbitity of water

Measured in [NTU (Nephelometric Turbidity Unit)](https://de.wikipedia.org/wiki/Nephelometric_Turbidity_Unit).

Get the TSD-10 sensor (the keyestone one from eckstein?) and some calibration liquids!


## Resources

- [electroniclinic](https://www.electroniclinic.com/turbidity-sensor-with-arduino-for-water-quality-monitoring-turbidity-meter/): shallow but lengthy discussion of background


## Hardware

- [Aqualab multiparameter probe](https://en.aqualabo.fr/tripod-optod-c4e-ntu-15-m-of-cable-bare-wire-b4102.html)
- [Amphenol TSD-10](https://www.amphenol-sensors.com/en/thermometrics/turbidity/2958-tsd-10): just the sensor, 5V, analog output
- [Amphenol TSW-10 Turbitity sensor](https://files.seeedstudio.com/wiki/Grove-Turbidity-Sensor/res/Turbidity-Sensor-Datasheet.pdf): just the sensor, 5V, analog output
- [Grove - Turbidity Sensor Meter](https://wiki.seeedstudio.com/Grove-Turbidity-Sensor-Meter-for-Arduino-V1.0/): 3.3V/5V, analog output, not calibrated
- [gravity arduino turbidity sensor](https://wiki.dfrobot.com/Turbidity_sensor_SKU__SEN0189): 5V only, analog output
- [Keyestudio Turbidity Sensor V1.0](https://eckstein-shop.de/KeyestudioTurbiditySensorV10forArduinoWaterTestingwithWires): 5V only, analog output
- [Public lab](https://publiclab.org/notes/donblair/11-01-2015/turbidity-sensor-prototype): super simple idea, but needs more development and calibration


## Software

- [Aqualabo Sensor Arduino Library](https://github.com/ElectronicCats/AqualaboSensorsLibrary)
