Gravity CL2 Sensor (Calibrated) - I2C & UART

DFRobotSKU: RB-Dfr-1160
Manufacturer #: SEN0468

Price  :
Sale price ¥23,530

Tax included Shipping calculated at checkout

Stock  :

Re-stocking soon See due date

Notify me when this product is in stock

Payments and Security

Payment methods

American Express Apple Pay Google Pay JCB Mastercard PayPal Shop Pay Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.



  • Gravity CL2 Sensor (Calibrated) - I2C & UART
  • Offers high stability and high sensitivity
  • Detects chlorine (CL2) gas
  • Strong anti-interference ability
  • Supports three output modes analog, I2C, and UART
  • Working Voltage: 3.3 ~ 5.5 V DC

The Gravity CL2 Sensor (Calibrated) - I2C & UART detects chlorine concentration and supports three output modes: analog, I2C, and UART. The probe has been calibrated at the factory, which can quickly and accurately measure the concentration of chlorine in the environment. Can be widely used in the detection of chlorine in the chemical, pharmaceutical production, and environmental protection fields.

The probe adopts the electrochemical principle, has the characteristics of strong anti-interference ability, high stability, high sensitivity, etc., and the service life is as long as two years.

Gravity CL2 Sensor (Calibrated) - I2C & UART - Click to Enlarge

The sensor has 32 modifiable I2C addresses, an integrated temperature compensation algorithm, and a threshold alarm function, It has good compatibility with mainstream main control devices such as Arduino, ESP32, and Raspberry Pi. The easy-to-use Gravity interface, coupled with the sample code, can quickly build a chlorine concentration detector.

Gravity CL2 Sensor (Calibrated) - I2C & UART - Click to Enlarge

DFRobot has introduced 12 gas detection sensors in this series, CO, O2, NH3, H2S, NO2, HCL, H2, PH3, SO2, O3, CL2, and HF, which are used in exactly the same way and data format, so you can combine them according to your needs.

  • 1x Gravity Chlorine Signal Conversion Board
  • 1x Chlorine Sensor Probe
  • 1x Gravity - 4-Pin Cable


  • Adapter Plate size: 37 x 32 mm
  • Detection Gas: Chlorine (CL2)
  • Detection range: 0 ~ 10 ppm
  • Working Voltage: 3.3 ~ 5.5 V DC
  • Working Current: < 5 mA
  • Output Signal: I2C, UART (0 ~ 3 V), analog voltage
  • Working Temperature: -20 ~ 50 °C
  • Working Humidity: 15 ~ 90 % RH (non-condensing)
  • Storage Temperature: -20 ~ 50 °C
  • Storage Humidity: 15 ~ 90 % RH (non-condensing)
  • Lifespan: >2 years (in the air)
  • Compatibility: Arduino, ESP32, Raspberry Pi

Estimate shipping

You may also like