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MQ-136 H2S Gas Sensor Module

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Gas Sensors for everyday users

The MQ-136 H2S Gas Sensor Module is a mid-range gas sensors designed for everyday users. It features Item Type: Gas Sensor and Length (mm): 29.

₹1,551
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Total: ₹1,551
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Estimated delivery: 25 Aug8 Sept
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Quick Specs

Item Type: Gas Sensor
Length (mm): 29
Width (mm): 19
Weight (g): 8
Shipping Weight: 0.010 kg
Shipping Dimensions: 3 × 3 × 2 cm

Ideal For

Electronics projectsArduino / Raspberry Pi buildsPrototyping
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SKU: robu-975811Category: Gas Sensors

About This Product

The MQ-136 H2S Gas Sensor Module is a mid-range gas sensors designed for everyday users. It delivers reliable performance at an accessible price.

Key Specifications

  • Item Type: Gas Sensor
  • Length (mm): 29
  • Width (mm): 19
  • Weight (g): 8
  • Shipping Weight: 0.010 kg
  • Shipping Dimensions: 3 × 3 × 2 cm

Why Buy from Elecvora?

Elecvora sources this product directly, cutting out multiple middlemen. Every order includes free shipping, a 15-day return policy, and secure payment via Razorpay.

MQ-136-Hydrogen Sulfide Gas Sensor can be used to monitor the concentration of Hydrogen Sulfide gas. This Module simplifies using the MQ-136 gas sensor by providing digital as well as analog output which can be interfaced to Microcontrollers, Arduino, and Raspberry pi.

The sensitive material of the MQ136 gas sensor is SnO2, which with lower conductivity in clean air. When the target Hydrogen sulfide gas exists, the sensor’s conductivity is higher along with the Hydrogen sulfide concentration rising. Please use a simple electric circuit, Convert the change of conductivity to correspond output signal of gas concentration. MQ136 gas sensor has a high sensitivity to Hydrogen sulfide, Low sensitivity for other combustible gas. It is at a low cost and suitable for different applications.

Applications:
  • Domestic Hydrogen sulfide detector
  • Industrial Hydrogen sulfide detector
  • Portable Hydrogen sulfide detector
Note : Actual product may vary in terms of design we will ship according to the stock availability.

Features:

  1. Dual signal output (analog output and TTL level output)
  2. The TTL output effective signal is low. (The signal light is on when the output is low and can be directly connected to the microcontroller)
  3. Analog output 0 ~ 5V voltage, the higher the concentration the higher the voltage.
  4. Good sensitivity to hydrogen sulfide, liquefied gas, natural gas, city gas, and smoke.
  5. with long service life and reliable stability
  6. fast response recovery characteristics
  7. Size: 32mm X22mm X27mm length X width X height
  8. The main chip: LM393, ZYMQ-136 gas sensors
  9. Good sensitivity to Hydrogen sulfide
  10. Long life and low cost
  11. Simple drive circuit

Package Includes:

1 x MQ-136 Hydrogen Sulfide Gas Sensor

Setup Guide

1
Identify the pins
Locate VCC (power), GND (ground), and data pins (SDA/SCL for I2C, MOSI/MISO for SPI, or TX/RX for UART). Refer to the pinout diagram on the product page.
2
Wire to your microcontroller
Connect VCC to 3.3V or 5V (check the module spec), GND to GND, and data pins to the appropriate GPIO pins on your Arduino or Raspberry Pi.
3
Install libraries
In Arduino IDE, go to Sketch → Include Library → Manage Libraries and search for the sensor library. Install the recommended version.
4
Upload example sketch
Open File → Examples → [library name] → Basic Example. Upload to your board and open Serial Monitor to view output.
5
Calibrate if needed
Some sensors (temperature, humidity, distance) may need a short warm-up period or calibration. Run the calibration sketch if provided.