一氧(yang)化碳氣體(ti)探測器有兩種： 電(dian)(dian)化學傳(chuan)感(gan)器(qi)和半導體傳(chuan)感(gan)器(qi)。電(dian)(dian)化學傳(chuan)感(gan)器(qi)的精度高、穩定性好，因而價格相對較(jiao)高。電(dian)(dian)化學傳(chuan)感(gan)器(qi)的功耗較(jiao)低(di)，做成的報(bao)警器(qi)可使用電(dian)(dian)池供(gong)電(dian)(dian)。半導體傳(chuan)感(gan)器(qi)功耗較(jiao)高，通常(chang)不用電(dian)(dian)池供(gong)電(dian)(dian)。

　　半(ban)(ban)導體一氧化(hua)碳(tan)報警器(qi)采用(yong)半(ban)(ban)導體型一氧化(hua)碳(tan)傳感器(qi)作為敏感元件，要求其(qi)敏感元件恒溫(wen)在200℃左右時能快速響應，因此要給其(qi)增加電(dian)熱絲(si)加熱，所以要提(ti)供(gong)比較大(da)的電(dian)流(liu)，當溫(wen)度(du)(du)、濕度(du)(du)甚至風變化(hua)大(da)對其(qi)精確(que)測量很(hen)不利，還有就(jiu)是容易受到其(qi)它氣(qi)體的交叉干(gan)擾，如酒精、氮(dan)氧化(hua)物(wu)、氫氣(qi)、烷類等氣(qi)體的干(gan)擾，容易誤報，但(dan)其(qi)價廉。一般使用(yong)壽命可(ke)達五年。

　　電(dian)(dian)(dian)化(hua)(hua)(hua)學(xue)一(yi)(yi)(yi)(yi)氧(yang)(yang)化(hua)(hua)(hua)碳(tan)報警器采用(yong)零(ling)功(gong)耗(hao)電(dian)(dian)(dian)化(hua)(hua)(hua)學(xue)一(yi)(yi)(yi)(yi)氧(yang)(yang)化(hua)(hua)(hua)碳(tan)傳(chuan)感(gan)器作為(wei)敏感(gan)元(yuan)件，大都采用(yong)電(dian)(dian)(dian)化(hua)(hua)(hua)學(xue)法(fa)中的(de)定電(dian)(dian)(dian)位(wei)電(dian)(dian)(dian)解法(fa)原(yuan)理，利用(yong)定電(dian)(dian)(dian)位(wei)電(dian)(dian)(dian)解法(fa)進行氧(yang)(yang)化(hua)(hua)(hua)還原(yuan)電(dian)(dian)(dian)化(hua)(hua)(hua)學(xue)反應(ying)，檢測擴(kuo)散電(dian)(dian)(dian)流便可得出(chu)一(yi)(yi)(yi)(yi)氧(yang)(yang)化(hua)(hua)(hua)碳(tan)氣體(ti)的(de)濃度，并且有(you)很好的(de)線性(xing)測量范圍以及很高(gao)的(de)選擇性(xing)，抗交(jiao)叉氣體(ti)干擾能(neng)力(li)也很強，價(jia)格相對比較貴。電(dian)(dian)(dian)化(hua)(hua)(hua)學(xue)一(yi)(yi)(yi)(yi)氧(yang)(yang)化(hua)(hua)(hua)碳(tan)傳(chuan)感(gan)器為(wei)零(ling)功(gong)耗(hao)型，無(wu)需加(jia)熱，非常適(shi)合配合低功(gong)耗(hao)的(de)檢測電(dian)(dian)(dian)路采用(yong)電(dian)(dian)(dian)池供電(dian)(dian)(dian)，做成(cheng)一(yi)(yi)(yi)(yi)氧(yang)(yang)化(hua)(hua)(hua)碳(tan)濃度表、便攜式一(yi)(yi)(yi)(yi)氧(yang)(yang)化(hua)(hua)(hua)碳(tan)報警器等。電(dian)(dian)(dian)化(hua)(hua)(hua)學(xue)一(yi)(yi)(yi)(yi)氧(yang)(yang)化(hua)(hua)(hua)碳(tan)傳(chuan)感(gan)器長期(qi)暴露在無(wu)氧(yang)(yang)氣體(ti)樣(yang)品、酒精、油漆等刺激性(xing)溶劑(ji)中會(hui)影(ying)響(xiang)其靈敏度和(he)壽命(ming)，甚(shen)至會(hui)失效(xiao)。電(dian)(dian)(dian)化(hua)(hua)(hua)學(xue)一(yi)(yi)(yi)(yi)氧(yang)(yang)化(hua)(hua)(hua)碳(tan)傳(chuan)感(gan)器在空氣中的(de)使用(yong)一(yi)(yi)(yi)(yi)般為(wei)三年，也有(you)五年的(de)，更長的(de)可達八年以上。