3-in-1 Indoor Air Quality Monitor, Home Formaldehyde HCHO/TVOC/PM2.5/PM10 Tester, Multifunctional Accurate AQI Detector with Real Time Data, Average Value Recording for Home, Office, Bedroom

["Rechargeable HCHO & Air Quality Monitor: GOYERRNES GR-5800S has a built-in 2000mAh rechargeable battery, with a dedicated USB cable included. It offers ~15 hours of continuous runtime on a full charge. Auto-shutdown & low battery reminder save battery efficiently.","Precise Air Quality Monitor: This multifunctional AQI detector uses laser scattering for 0-999.9μg/m³ PM2.5/PM10 detection (min 0.3μm). It measures HCHO via electrochemical sensor (0.01mg/m³ resolution) and 0-10mg/m³ TVOC via thick-film semiconductor TVOC sensor (0.05mg/m³ resolution).","2.8” LCD with Smart Backlight: This air quality monitor is equipped with a 2.8” TFT true-color LCD screen. Its unique backlight design lets you read all data clearly and operate the device easily even in dark environments.","Intelligent data collection: Pre-set measurement time (1/2/3 hours optional) and interval measurement time (10/20/30 minutes optional), the detector can automatically record data, a set of data every 10 minutes.","Versatile for All Scenarios: This HCHO tester's 3.14*1.49*7.4in compact size and 342g lightweight build make it great for air testing in homes, offices, renovation projects, hotels and more, for fast, efficient, comprehensive measurements."]