1 Air Quality Monitor Indoor CO2 Detector Formaldehyde HCHO TVOC Tester LCD Temperature Humidity Tester

Features:5 1 Function: Multifunction air quality monitor cares for your health and can be widely used home, office, classroom, hotel, gym, greenhouse, warehouse, etc.LCD Color Screen: Displays CO2, CO2 index, HCHO (formaldehyde), TVOC, temperature, humidity and battery level. LCD digital color screen for easy and clear reading even dark environments.Carbon Dioxide Tester: Adopts semiconductor sensor, air convection detection, quickly and accurately detects CO2 concentration the living environment.4-color Indicator Alarm Buzzer: 0-799PPM (Green), 800-1199PPM (Yellow), 1200-1599PPM (Orange), 1600PPM and above (Red). The buzzer alarms when the CO2 concentration is above 1500PPM.Rechargeable Design: Built-in 1200mAh rechargeable lithium battery for strong endurance. With type-C USB interface for quick charging via power adapter, power bank, laptop, etc.Concise Appearance: Simple but stylish appearance, desktop or wall mounted installation, fits well with different styles of houses. Compact and lightweight, easy to carry.Note:1. Please read the user manual carefully before use.2. Size and color may be slightly different due to manual measurement and different light conditions. Thanks for understanding.