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Mydome Canary Gas Alarm | Accurate Natural Gas Detector With A Loud Alarm & Digital Display, Designed To Detect Combustible Gas Leaks Including LPG, Butane, Propane & Methane In The Home : Amazon.co.uk: DIY & Tools
![22nd July 1992 Canary in Haldane cage at Dinas mines rescue station Rhondda Valley South Wales UK used for detecting methane gas Stock Photo - Alamy 22nd July 1992 Canary in Haldane cage at Dinas mines rescue station Rhondda Valley South Wales UK used for detecting methane gas Stock Photo - Alamy](https://c8.alamy.com/comp/B7M5EW/22nd-july-1992-canary-in-haldane-cage-at-dinas-mines-rescue-station-B7M5EW.jpg)
22nd July 1992 Canary in Haldane cage at Dinas mines rescue station Rhondda Valley South Wales UK used for detecting methane gas Stock Photo - Alamy
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Mydome Canary Gas Alarm | Accurate Natural Gas Detector With A Loud Alarm & Digital Display, Designed To Detect Combustible Gas Leaks Including LPG, Butane, Propane & Methane In The Home :
![Mydome Canary Gas Alarm | Accurate Natural Gas Detector With A Loud Alarm & Digital Display, Designed To Detect Combustible Gas Leaks Including LPG, Butane, Propane & Methane In The Home : Mydome Canary Gas Alarm | Accurate Natural Gas Detector With A Loud Alarm & Digital Display, Designed To Detect Combustible Gas Leaks Including LPG, Butane, Propane & Methane In The Home :](https://m.media-amazon.com/images/I/61s2MyDWKyL._AC_UF894,1000_QL80_.jpg)
Mydome Canary Gas Alarm | Accurate Natural Gas Detector With A Loud Alarm & Digital Display, Designed To Detect Combustible Gas Leaks Including LPG, Butane, Propane & Methane In The Home :
When did they stop the practice of carrying canaries in the coal mines to detect carbon monoxide? What do they use instead? - Quora
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