Winsen MQ-7B Carbon Monoxide Sensor


In stock

SKU: 1278813
  1. Product: Carbon Monoxide Sensor
  2. Model: MQ-7B
  3. Detection range: 10~500ppm CO
  4. Heater consumption PH: ≤900mW


(Including GST)

In stock

Purchase this product now and earn 3 Robu Points!

Very Low Stock. Order Now !

Have any issues, Get support here.
Have a bulk requirement, mail us to [email protected]
Didn’t Find what you are looking for?

Brand: Winsen
Category: Gas and Dust Sensor
Tags: Carbon Monoxide Sensor

A silicon microchip, housed in a plastic shell, sends an electrical charge to a small detection chamber that contains a CO sensor. This sensor can detect and measure CO concentration in the atmosphere. If the sensor detects high levels of CO, the microchip will trigger an alarm

Sensitive material of MQ-7B gas sensor is SnO2, which with lower conductivity in clean air. It make detection by method of cycle high and low temperature, and detect CO at low temperature(heated by 1.5V).The sensor’s conductivity gets higher along with the CO gas concentration rising. At high temperature (heated by 5.0V),it cleans the other gases adsorbed at low
temperature. Users can convert the change of conductivity to correspond output signal of gas concentration through a simple circuit.


It is widely used in domestic CO gas leakage alarm, industrial CO gas alarm and portable CO gas detector.

Note: For more Info Check User Manual 


  1. Small in size
  2. Best quality product
  3. High sensitivity, high resolution, low power consumption
  4. Fast response time
  5. Excellent stability
  6. Long lifespan
  7. Anti-poisons, anti-vapor interference

Package Includes: 

1 x Winsen MQ-7B Carbon Monoxide Sensor

SKU: 1278813 Category: Tag:


Sensor Type


Standard Encapsulation

Plastic cap

Target Gas

carbon monoxide

Detection range

10~500ppm CO

Heater consumption PH


Sensitivity S

Rs(in air)/Rs(in 150ppm CO)≥5

Shipping Weight 0.002 kg
Shipping Dimensions 4 × 3 × 1 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.  Reimbursement or 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 “Winsen MQ-7B Carbon Monoxide Sensor”

There are no reviews yet.

User Manual

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