DFRobot Gravity HCL Sensor (Calibrated) – I2C & UART


This is a HCL ( hydrogen chloride )Sensor (Calibrated) – I2C & UART sensor that detects oxygen 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 oxygen in the environment.

Add to Wishlist
Add to Wishlist

Can be widely applied to fields like portable devices, air quality monitoring devices, industries, mines, warehouses, and other spaces where the air is not easy to circulate.
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. 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 our sample code, can quickly build an oxygen concentration detector.
Factory calibrated, accurate measurement
High sensitivity, low power consumption
New condition .
Excellent stability and anti-interference
Three output modes: I2C, UART and analog
Long service life(2 years)
Compatible with 3.3~5.5V main controllers
32 modifiable I2C addresses
Reverse connection protection
Temperature compensation
Threshold alarm

Detection Gas CO, O2, NH3, H2S, NO2, HCL, H2, PH3, SO2, O3, CL2, HF(Need to change different probe)
Working Voltage 3.3~5.5V DC
Working Current <5mA
Output Signal I2C, UART output (0~3V), analog voltage (see the characteristic parameters of specific probe)
Working Temperature -20~50℃
Working Humidity 15~90%RH (non-condensing)
Storage Temperature -20~50℃
Storage Humidity 15~90%RH (non-condensing)
Lifespan >2 years (in the air)
Adapter Plate Size 37×32mm

HCL Sensor (Calibrated) – I2C & UART

GAs detections HCL
Detections range 1-10ppm
Resolution 1.1ppm
Response time ≤60S


There are no reviews yet.

Be the first to review “DFRobot Gravity HCL Sensor (Calibrated) – I2C & UART”

Your email address will not be published. Required fields are marked *

Shopping Cart