Winsen MC119 Catalytic Flammable Gas Sensor


In stock

SKU: 1278795
  1. Product: Gas Sensor
  2. Model: MC119
  3. Sensor Type: Catalytic
  4. Standard Encapsulation: Metal, Metallurgy powder mesh
  5. Working voltage(V): 2.5±0.1
  6. Size (mm): 19×9.5×14


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Brand: Winsen
Category: Gas and Dust Sensor

Winsen Electronics, MC119 adopts catalytic combustion principle, and detects hydrogen, ethylene, gasoline, VOC such as alcohol, ketone, benzene.
MC119 adopts catalytic combustion principle, and its two arms of electric bridge consists of a test element and a compensate element. The resistance of the test element rises once it meets the combustible gases, in the same time, the output voltage of the bridge changes and the voltage variation rises in direct proportion to the gas concentration. The compensate element, as a conference, has the function of compensating temperature and humidity.


It has good sensitivity to methane in wide range, and has advantages such as long lifespan, low cost and
simple drive circuit &etc. The bridge output is linear, quick response, good repeatability and selectivity,
good stability, excellent resistance to the interference of H2S gas and organosilicon.

Package Includes:

1 x Winsen MC119 Catalytic Flammable Gas Sensor

SKU: 1278795 Category:


Sensor Type


Standard Encapsulation

Metal, Metallurgy powder mesh

Working voltage(V)


Working current(mA)


Sensitivity (mV)

1% H2 20~40, 1% C2H2 40~90



Measuring range

(%LEL) 0~100

Response Time

(90%) ≤10s

Recovery Time:

(90%) ≤30s

Working Environment

-40~+70℃, less than 95%RH

Storage Environment

-20~+70℃, less than 95%RH

Size (mm)


Anti-explosion Mark


Shipping Weight 0.002 kg
Shipping Dimensions 4 × 4 × 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.

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Country Of Origin: China