1、Advanced Reminds and Smart Timer: This air quality detector is equipped with quality reminds and a smart timer, providing real time detection of HCHO, TVOC, PM2.5, PM10, CO2, humidity, and temperature. 2、Clear Display for Easy Reading: The large screen displays time, date, and multiple environmental parameters clearly, ensuring you can easily read and understand your indoor air conditions at a glance. 3、Historical Data Curve Tracking: With curve recording capabilities, you can WiFi calibrate TVOC and PM particles while reviewing historical data for six key metrics, ensuring informed decisions on air quality. 4、Smart Sensor and 2 Ventilation: This indoor air quality tester combines smart sensors with a 2 ventilation structure, delivering accurate air quality data across a wide detection range with minimal error. 5、WiFi Connectivity and Calibration Support: Connects seamlessly to your home WiFi, this device offers in depth insights into real time indoor air quality via a smart app, with easy four click calibration for accuracy. 6、Impressive 7 Hour Battery Life: Powered by a built in li battery, this air quality tester supports both plugged in and portable usage, making it convenient for daily monitoring tasks. 7、ABS Construction: Crafted from ABS materials, this air quality tester is strong, wear resist, and designed for longevity, providing stable service throughout its lifespan. Item Type: Air Quality Detector Material: ABS Display: LCD TFT Color Screen Digital Display Operating Voltage: 3.7V Charging Method: DC 5V 1A TYPE C USB Battery: 3.7V Rechargeable Li Battery 2000mAh x 1 [Built in Battery Included] Size: Approx. 90 x 70 x 35mm / 3.54 x 2.76 x 1.38in Operating Current: 260mA Charging Time: 4 hours Standby Time: Around 300-360 minutes 1 x Air Quality Detector 1 x Instruction Manual 1 x Data Cable