1. 2.8-inch color high-definition display screen: real time updates of specific values for each parameter, with clear results at a glance, making it convenient to check air quality at any time. 2. long battery life: type-c charging port, built-in 1200mah rechargeable lithium battery, with a full charge life of about 30 hours. 3. Real time viewing of 3.5 values: 5 detection data of co2, hcho, tvoc, temperature, and humidity are updated in real-time every second. 4. Color grading display: different colors are indicated by individual indicators, and users can quickly understand the environmental situation based on numerical/color changes. 5. Multi scenario application: suitable for home, office, camping, warehouse and other places, fully ensuring your respiratory health. Product name:5-in-1 air quality detector Charging method:usb type-c interface Battery: 1200mah lithium battery Measurement objects: co2, hcho, tvoc, temperature, humidity Color:Black Material:plastic Package Contents: 1 * Air Quality Monitor 1 * bracket Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.