Lifespan of combustible gas detector sensor

[Coda1]

The sensor life for the #69373 combustible gas detector is 500 hours. Is there also a time lifespan on it? For example if it is only used 20 hours a year would the sensor last 25 years or would it need to be replaced after a year or two. Also is there a way to tell when it is time to replace the sensor?

[HVAC_Marc]

Also is there a way to tell when it is time to replace the sensor?

"Good, no gas detected." (flips on light switch)


BOOM!

[Coda1]

"Good, no gas detected." (flips on light switch)


BOOM!

Sounds like a lifetime warranty

[HVAC_Marc]

Sounds like a lifetime warranty

Your lifetime

[cooperwood]

Hi.. if the validity of your sensor is just 500 hours and you use it in 20 hour a year than also you have to change it in 2 yr.It will not work more than 2 year.