DFRobot Gravity H2 Sensor (Calibrated) – I2C, UART and analog


In stock

SKU: 1356243
    1. Factory calibrated, accurate measurement
    2. High sensitivity, low power consumption
    3. Excellent stability and anti-interference
    4. Three output modes: I2C, UART and analog
    5. Detection Gas: Hydrogen (H2)
    6. Working Voltage: 3.3~5.5V DC
    7. Working Current: <5mA


(Including GST)

In stock

Purchase this product now and earn 189 Robu Points!

Very Low Stock. Order Now !

Free Delivery above ₹499
Free Delivery
above ₹499
1 Year Warranty
15 Days Warranty
Cash On delivery
Cash on Delivery*

Didn’t find what you are looking for?

Brand: DF Robot
Category: Gas and Dust Sensor

This is DFRobot Gravity H2 Sensor (Calibrated) – I2C, UART and analog.

This is a sensor that detects hydrogen 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 hydrogen in the environment. Can be widely used in the detection of hydrogen in industrial 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.

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 a hydrogen concentration detector.

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


  1. Industrial hydrogen fluoride detection
  2. Environmental protection device

Df Robot Protocal Image

Connection Diagram

Df Robot I2C Uart

Useful Link:



  1. Factory calibrated, accurate measurement
  2. High sensitivity, low power consumption
  3. Excellent stability and anti-interference
  4. Three output modes: I2C, UART and analog
  5. Long service life(2 years)
  6. Compatible with 3.3~5.5V main controllers
  7. 32 modifiable I2C addresses
  8. Reverse connection protection
  9. Temperature compensation
  10. Threshold alarm
  11. It use I2C, UART and analog communication protocol to make smooth commutation between sensor and micro-controller.

Package Includes:

1 x DFRobot Gravity H2 Sensor (Calibrated) – I2C UART and analog

SKU: 1356243 Category:
Detection Gas

Hydrogen (H2)

Detection range


Working Voltage

3.3~5.5V DC

Working Current


Output Signal

I2C, UART (0~3V), analog voltage

Working Temperature


Working Humidity

15~90%RH (non-condensing)

Storage Temperature


Communication Protocol

I2C, UART and analog


Arduino, ESP32, Raspberry pi

Storage Humidity

15~90%RH (non-condensing)


>2 years (in the air)

Adapter Plate Size

37 x 32mm

Shipping Weight 0.083 kg
Shipping Dimensions 13 × 9 × 4 cm
15 Days Warranty

This item is covered with a standard warranty of 15 days from the time of delivery against manufacturing defects only. This warranty is given for the benefit of Robu customers from any kind of manufacturing defects. Replacement will be done against manufacturing defects.

What voids warranty:

If the product is subject to misuse, tampering, static discharge, accident, water or fire damage, use of chemicals & soldered or altered in any way.

Based on 0 reviews

0.0 overall

Be the first to review “DFRobot Gravity H2 Sensor (Calibrated) – I2C, UART and analog”

There are no reviews yet.

Questions and answers of the customers

There are no questions yet. Be the first to ask a question about this product.

Only registered users are eligible to enter questions
Country Of Origin: China