ApexGear 11-in-1 Indoor Air Quality Monitor, Detects CO2 HCHO PM Particles, High Precision Home Tester

・11-in-1 Comprehensive Indoor Air Detection: This indoor air quality monitor supports simultaneous testing of 11 air indicators including AQI, temperature, humidity, CO2, CO, HCHO, TVOC and 4 kinds of PM particles. Built with infrared, laser and semiconductor composite sensors, it delivers sensitive & accurate readings, enabling 24-hour continuous indoor air monitoring for your living space.

・2.8 Inch HD Color Screen With Tri-color Air Prompt: Equipped with a 2.8-inch high-resolution wide-view HD color display, this air detector shows all 11 test data clearly in real time. Green, yellow and red backlight reminds you of safe, warning and exceeded air quality status visually, which is easy for all family members to understand at a glance.

・Compact Palm Size With 15 Built-in Practical Functions: Crafted into palm-sized compact body for easy carrying and storage, this air detector integrates 15 practical daily functions. Apart from professional air quality testing, it can be used as digital clock, alarm clock, stopwatch and timer. One-click interface switching simplifies operation, suitable for adults and elders to use at home effortlessly.

・2000mAh Rechargeable Battery & Type-C Charging: Powered by built-in 2000mAh lithium battery with universal Type-C charging port. It can work continuously for 5 hours with screen on, and up to 7 hours under energy-saving screen-off mode. The power-saving design effectively extends standby time for long-time indoor monitoring.

・High Precision Sensing With Automatic Calibration: Adopting multi-sensor structure for synchronous detection of temperature, humidity and air pollutants. The detector boasts precise measurement down to thousandth place with wide detection range. It supports manual self-calibration by simple button operation to keep detection accuracy during long-term use.