✅ [PROTECTS EVERY BREATH] – The AirKnight 10-in-1 indoor air quality monitor contains high quality sensors that detect the most threatening air pollutants (CO2 (carbon dioxide), PM2.5 & PM10 (particulate matter), TVOC (volatile organic compounds), HCHO (Formaldehyde) and more) in REAL-TIME, all shown on one large, easy-to-read LCD screen. ✅ [PLUG AND PLAY] – Our indoor air quality meter was designed and customized to be user-friendly for the American customer, and more importantly, to keep your home safe. An instructional video and an informative, clearly written user manual are included also, just in case. ✅ [TAKE IT WITH YOU] – Showcasing a long-lasting 3000 mAh rechargeable Lithium-Polymer battery, your AirKnight AT1000 portable air quality monitor was built to be portable so you can take easily move it around the house or take it to school, work, or in your car. ✅ [PERFECT FOR WILDFIRES ] – The Airknight AT1000 carbon dioxide monitor guards your air quality in the event of a wildfire (or if you have older appliances) by letting you know when particulate matter (PM2.5 + PM10) and/or volatile organic compounds (VOCs) are unusually high. ✅ [AMERICAN RUN] – AirKnight Monitoring is A US-based business with strict quality controls and a US-based customer phone support. Sign up for our free extended warranty and, if you ever have any issues, we'll make sure you're taken care of! Every Home Deserves Protection With an AirKnight portable air quality monitor, safeguard your family, home, office, and even your vehicle from hidden dangers, including: PRECISE SENSORS that detect CO2 levels every 2 seconds in REAL-TIME LONG-LASTING 2000 mAh rechargeable Lithium-Ion battery, providing 14+ hours of continuous use STYLISH LCD DISPLAY for easy reading with a sleek, modern look EFFORTLESS SETUP – no Wi-Fi, apps, or technical expertise required INTEGRATED CO2 ALARM with adjustable thresholds, perfect for home growing, brewing, or fermentation Trust the reliability of a proven product, proudly backed by AirKnight, an American company