Model B1 
Protect your home, business, restaurant or hotel! 
The Bitwo Gas Detector will immediately indicate the presence of high levels of combustible gases (LPG, natural, ethanol and hydrogen) that are leaking from any installation or tank. As well as toxic gases from burning fuels (smoke and carbon monoxide). 
 
Let no one disconnect it! Fixed installation in a 2 x 4 inch electrical box.
Touch button for "TEST", "RESET" and "Night mode".
Automatic calibration and no maintenance required.
Internal 90 dB alarm.

The only one with the Mexican NOM-NYCE certification. Don't take risks with generics! 
 
 Important: 
It is recommended to install a detector for each space of up to 4x4m.
Install at least 1m of stoves or appliances that emit steam.
Do not install in rooms where there may be steam such as bathrooms with showers.
Do not spray deodorant, perfume, or spray near the detector.
The detector can be activated by toxic vapors from cleaning chemicals.
Read instructions to know the ideal installation height depending on the gas to be detected.

Designed and manufactured in Mexico.