Electrochemical Detectors: These get the job done by developing a chemical reaction when carbon monoxide is from the air. When the gasoline is detected, the alarm goes off. 6. Transceivers and Wireless Sign Repeaters Wireless sign repeaters and transceivers are utilized in significant facilities or structures with numerous fire zones https://wirelessfirealarmsystems72592.mybjjblog.com/the-wireless-fire-alarms-diaries-51424760