1 * Chat sensor Color White Size: 104 * 39mm Material: ABS Weight: 200g Working temperature: 0 ℃ -50 ℃ 1. Product Introduction This product is an intelligent carbon smoke composite sensor, takes control of micro-chamber, electrochemical sensor and is characterized by high Stability, low energy consumption and small sensitivity drift. It is mainly used in places where carbon monoxide and fire can occur in order to ensure the safety of personal life. 2. Functions Apply electrochemical sensor with high reliability and an infrared photoelectric sensor. LCD liquid crystal display density. AA battery No. 5 Battery power 3 * 1.5V (the product does not have its own battery). Low power consumption, long life in standby mode. Low battery reminder. Alarm memory function. Alarm pause (silent mode). Sound and light alarm / LED signaling alarm. Three instructions Install 3 AA 1.5 V batteries, the buzzer will release one beep, the alarm will start to enter the pre-heating state, and a 2-minute countdown will appear on the display. Press "TEST / RESET", "0" PPM will appear on the LCD screen, the LED will start to flash and the buzzer will spend a fourfold audible signal every 5 seconds. Press and hold the "Test / Reset" button for more than 10 seconds to display the alarm concentration, and then press "Test / reset" again to delete it. Under normal working conditions, green light flashes every 30 seconds. When the battery is poor, the red light flashes every 10 seconds and the LCD screen displays "LB" at the same time. When the detector detects that carbon monoxide will exceed 100PPM, the alarm will start, the red light will start to flash and the buzzer will spend a fourfold audible signal in a distance of 5 seconds. At this point, immediately close the valve, open the door and windows to enable air circulation in the room and notify the right specialists to take care of it. In the event of a fire, when the concentration of smoke exceeds 0.1% DB / m, the alarm will turn on, the blue light will flash and the buzzer will be alarmed continuously. If you encounter a situation other than emergency, you can immediately press the test button, and the LED will flash cyclically, indicating that the device has passed into a silent mode. The LED flashes once every 10 seconds to indicate that the alarm has undergone a silent mode (in silent mode, press the button once, the buzzer will issue a siren, and the red light flashes cyclically, indicating that the mute is turned off). The alarm will be automatically reset after 10 minutes. 4. Installation method: 1. Generally a detector should be installed in the bedroom, living room, car and other places where people are staying for a long time. The installation is installed in the bedroom, corridor, basement, car and lounge. 2. Because the concentration of gas and carbon monoxide smoke is lighter than the air, the detector should be mounted 0.3-1 under the ceiling. 3. During the assembly of the detector, it is not easy to be too close to the furnace to prevent the burning of the detector by flames, it can not be mounted in places with a large water vapor flow, such as exhaust fans, doors and windows, bathrooms; it can not be mounted in places With a large oiled bream, in order to avoid a fused smoke-locking air inlet to the detector, which may cause a difficult input and thus affect the sensitivity of the detector. Product installation: 1. This product should not be installed in the following places: (a) places where there are smoke b) places where relative humidity exceeds 95% C) places contaminated with a large dust, aqueous and oil fog (D) in normal conditions. High-speed heating sites (above 5m / s) 2. Insert the battery into the battery compartment according to the positive and negative polarization. 3. Select the appropriate location, usually install it on the ceiling in the center of the detection area and attach the detector base in the selected installation point using mounting screws. Smoke protection area: When the room height is 6-12 meters, the detector protection area is 80 square meters for the overall protection site; When the room height is less than 6 meters, the protection area is 60 square meters. 5. TECHNICAL PARAMETERS: Rest current: & lt; 80UA Alarm current: & lt; 80mA