ZN MT11 has upgraded its wifi function and data can be queried at any time using the app New alarm prompts have been added and the app settings can control smart home appliances non smart homes can use smart plugs to achieve control Specifications Model No ZN MT11 Detection CO2 HCHO formaldehyde TVOC Total Volatile Organic Compounds Temperature HumidityScreen 2 8 inch high definition color displayBattery 1200mAh rechargeable battery supports 30 hours of usage after full chargeDimensions 90mm x 35mm x 70mmFunctions Calibration function message screen temperature °C↔°F switching sound settingsFeatures 1 High Precision Air Quality Measurement Equipped with advanced sensors capable of detecting CO2 formaldehyde and TVOC levels with an accuracy of up to 0 001 mg m³ ensuring reliable air quality tracking for healthier living environments 2 Clear 2 8 Inch Color Screen Display Users can effortlessly monitor real time air quality temperature and humidity data presented in an easy to read format on the vibrant high definition screen 3 Long Battery Life The 1200mAh rechargeable battery ensures continuous functionality for 30 hours after a full charge perfect for extended use indoors or outdoors 4 Portable and Compact Design Its lightweight and compact build allows convenience for usage across various settings including bedrooms offices cars living rooms or outdoor activities like camping 5 Multi Feature Functionality Includes calibration modes s