【PLUG-IN 3-IN-1 CO DETECTOR】：The newly upgraded plug-in 3-in-1 carbon monoxide detector for home is equipped with advanced electrochemical sensors and temperature and humidity sensors, with high resolution, fast response performance, accurate real-time refresh of the current air carbon monoxide concentration, temperature and humidity data. Detectable CO concentration range:0-999ppm(±5%). Temperature measurement range: 34-212°F (±1.8°F) Humidity measurement range: 0-99% RH (±3%). 【LCD-LED CLEAR INDICATION】The digital carbon monoxide detector is equipped with a high-definition colour screen with acrylic lens protection on the surface, which can display temperature, humidity and carbon monoxide concentration data information clearly at the same time. LED multi-colour lighting, clear function indication (yellow, red, green three indicators, corresponding to: fault, alarm, monitoring status), all clear display allows you to understand the air quality situation at a glance! Before use, please tear the factory configured screen protection film, the screen display will be clearer. 【≥85dB NOTIFICATION FUNCTION】When the carbon monoxide concentration value exceeds 70 PPM, the carbon monoxide alarm will sound a loud ≥85 dB alarm and the red indicator light will flash to alert you that you are in poor air quality. As the PPM value increases, the alarm triggering time range will be shortened. Equipped with a one-touch mute no-disturb function (press the ‘TEST’ button to switch off the buzzer). However, for safer reasons, the alarm sound will be reactivated after 6 minutes if the CO concentration continues to exceed the dangerous value, even if the alarm sound is switched off. Safety is more important than everything! 【PLUG AND PLAY & COMPACT DESIGN】The CO detector features an AC plug-and-play design for outlets with voltages ranging from 90-240V. The plug-in design saves installation time and the sleek, compact design makes it easier to integrate into your home, always guarding you and your family's respiratory health. 【WIDELY USE】The travel carbon monoxide detector simply plugs into an electrical outlet and starts working. Ideal for indoor use, family homes, bedrooms, kitchens, garages, cellars, caravans and especially living rooms with fireplaces, whilst the compact and portable pocket size is also suitable for hotel stays as well as travelling. 【EASY TO USE】When the portable carbon monoxide detectors is powered on, it will sound an alarm and all lights will flash three times, the screen will light up to show 8888 and the icon content, after 1 minute of ready time up, the green light will flash, the screen will show real time readings for a few seconds and it will enter into the hibernation detection state. If you encounter any problems, simply contact via order enquiry and we will respond within 6 hours. Ensure the safety of your living spaces with our advanced 3-in-1 Carbon Monoxide Detector. This plug-in CO detector not only monitors carbon monoxide levels but also provides real-time temperature and humidity readings, making it an essential addition to any home, hotel, car, or living area. Featuring a clear LCD display, this CO monitor alarm delivers instant visibility of environmental conditions, allowing you to stay informed at all times. The integrated sound warning system alerts you immediately in the event of elevated CO levels, ensuring swift action can be taken to protect your family and guests from potential harm. Designed for ease of use, the 3-in-1 Carbon Monoxide Alarm is perfect for installation in various settings, bringing peace of mind wherever you need it most. Trust in this reliable monitoring solution to keep your environment safe and healthy.