Place of Origin : Chengdu,China  
                                                         
CO alarm,CO detector,carbon monoxide detector
Model:CO-099D
-Power Supply:3*1.5V AA batteries 
-Electrochemical CO sensor 
-Alarm Style: Per EN50291 
-Sensitivity/Alarm Time:Within 60~90 minutes . 50ppm CO concentration;
                        Within 10~40 minutes . 100ppm CO concentration;
                        Within 3 minutes . 300ppm CO concentration
 
LCD Displayer(optional) 3 digits LCD displayer(CO-999D) 
-Audibility:85dB ( at 1m distance ), Frequency 3±0.5KHZ 
-Led Indic