2.8in Air Quality Detector Infrared Induction Digital CO2 PM2.5 Tester USB Charging White

Feature: 1. Using high?accuracy infrared sensor, sensitive response, accurate measurement data. 2. Adopt air natural flow detection technology, support real?time detection and automatically refurbish data. 3. With digital display to show CO2 concentration value, real?time temperature and humidity, remaining power, alarm switch reminder, etc. 4. Stable performance, strong anti?interference ability, low energy consumption and long use time. 5. Small size, light weight, easy to carry around, widely used in living rooms, offices, schools, etc. Specification: Item Type: Air Detector Material: ABS Color: White Voltage: 5V Current: 1A Application Technology: Air Natural Flow Detection Technology Screen Size: 2.8in Detection Range: 3percent -30percent Warm-Up Time: 0-2 Minutes Battery Capacity: Polymer Lithium Battery 2500mAh Charging Time: About 5 Hours Standby Time: 15 Hours Weight: Approx. 282g / 9.9oz Size: Approx. 10.5x7x3.2cm / 4.1x2.8x1.3in . Package List: 1 x Air Detector1 x USB Cable1 x Manual Note: 1. Please allow 0‑1 inch error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.