CO Detector Home Security Safety Alarm LCD Photoelectric Gas Sensor

Model Number : 1201 carbon Brand Name : Kan.Do Certification : CE Origin : Mainland China Type : Carbon Monoxide Detectors color : as picture Place of Origin : Guangdong, China (Mainland) #34;Any dispute / Direct negative feedback #34; before contact means #34;Buyer bad #34; !! And not welcome such buyer !! Please go away !! ( Because business is cooperation ,not fight each other ) . If protection time is running over ,please contact to extend time , if any problem found ,please contact to solve by a friendly way . Shipping without tracking number , only accept to refund if goods not delivered in 60 days . If you can not wait 60 days , please dont buy !!! To Brazil , buyer needs to wait for 90 days. No packing box included to ship ,product is put in envelop to ship . This product is a smart carbon monoxide detector with voice prompt, microprocessor control, support displaying of the carbon monoxide gas concentration and the time. When trigger the gas detector. This detector adopt catalytic combustion method sensor which is stable and reliable. It keeps the place safe from the threats of carbon monoxide gas. This product can be well used in villas, factories, shopping malls, warehouses, office buildings etc. indoor places. 1. Human voice prompt 2. High reliable electrochemical sensor 3. Carbon monoxide gas concentration displaying(PPM), 4.1.5*3 AAA battery 5. Low current consumption, ultra-long standby time 6. Alarm memory function 7. Auto detect sensor failure Power Supply:DC9V battery ( not included ) Sensitivity/Alarm Time :50PPM,within 60 to 90 minutes; Sensitivity/Alarm Time : 100PPM, within 10 to 40 minutes; Sensitivity/Alarm Time :300PPM, within 3