Gravity Analog ORP Sensor for Arduino

This ORP sensor allows you to easily measure the chlorine content in your pool. It is important to note that an ORP or REDOX sensor measures the oxidation or reaction potential of chlorine with water and this is given as a voltage (mV), unlike an amperometric chlorine sensor, which expresses the chlorine value in parts per million (ppm). The sensor compares the REDOX potential of the pool with a stable reference solution and therefore does not need to be calibrated by the end user. If you do not trust the measurement, you can verify it with an ORP standard solution and possibly adjust it, or compare it with a chlorine test strip. 

Recommended accessories:

• Gravity 16Bit 4-Channel ADC Analog Digital Converter I2C ADS1115
  

Documentation 

• DFRobot Wiki

Technical details 

• Input voltage: 5VDC 
• Measurement range: -2000mV-2000mV 
• Measurement error: ±10mV 
• Reaction time: ≤20s 
• Weight: 168g 

Delivery contents: 

• 1x Gravity Analog ORP Sensor for Arduino 
  
• 1x Adapter cable 
  
• 1x Measurement electrode