Condition: 100% Brand NewItem Type: Gas DetectorMaterial: ABSColor: As shown in the pictureSize: Approx. 8x8x3.7cm / 3.1x3.1x1.5inWeight: Approx.200g/7.1ozApplication: Car carbon monoxide detectorPlug: Car charger DC12-24VSuitable Gas: Carbon monoxideSensor Type: Fuel cell typeDisplay Mode: Four-digit digital tubeDisplay Range: 0~9999PPMResolution: 1PPMWorking Voltage: USB input DC5VResponse Time: 30 secondsSampling Method: Free diffusionAlarm Indication: Red and green two-color LED and buzzerAlarm Setting: >150 PPM alarm (four-digit digital tube display)Alarm Sound Pressure: >90dBWorking Temperature: 10~50Ambient Humidity: Maximum 95%RH (no condensation)Usage: wall-mounted installation, ceiling installation, car indoor placement.Instructions:(1) Press the self-check/switch button on the left side of the host, the detector enters the preheating state, the green light flashes (the detector has no monitoring function at this time) and the green light goes out after about 30 seconds, and the detector enters the normal monitoring state.(2) After the 30-second warm-up state, the detector enters the normal monitoring state. At this time, the green light flashes slowly every 5 seconds, indicating that the detector is powered normally.(3) When the indoor carbon monoxide concentration exceeds the alarm setting value (greater than 150PPM), the detector enters the alarm state (the red indicator light flashes and the buzzer sounds) When the carbon monoxide concentration is lower than the alarm setting value, the normal monitoring state will return to normal.(4) During the use of the detector, you can press the self-check/open key to check whether the detector is working normally. After pressing it, if the red, green and yellow lights flash alternately and the buzzer sounds, it means normal.(5) When the sensor fails, the yellow indicator light is always on, accompanied by the buzzer sound.(6) Then press the self-check/switch button on the left side of the host to shut down.