About this item 5 in 1 Air Quality Monitor This air quality meter has multiple functions. It can measure the CO2 concentration, TVOC concentration, HCHO concentration (formaldehyde), ambient temperature and air humidity in real time. Scientific design, accurate data - Scientific mesh design and air convection technology, fast heat dissipation and more accurate measurement data. KEEP YOUR INDOOR AIR CLEAN: Control your air quality at any time, whether at home or in the office, with the carbon dioxide detector. It simultaneously displays the data of temperature, humidity, CO2, formaldehyde and TVOC and has an alarm function. Ideal for preventing headaches, fatigue and lack of concentration. Measuring range: CO2: 400-5000 PPM TVOC: 0.000-9.999 mg or m³ HCHO: 0.000-9.999 mg or m³ Temperature: 0°C to 50°C Humidity: 0 percent -99 percent RH. The 5-in-1 air quality tester has a three-colour display (999999 Warning, orange - unsafe, red - not compliant). It helps you accurately monitor the concentration of different data in the room and ventilate it if necessary. Easy to Use Portable CO2 meter features an intelligent LCD color screen with clear image and convenient display of different data. Built-in 1200mA battery, long battery life, USB charging mode, can be used for 10 hours after fully charged. Portable carbon dioxide detector is easy to carry, the size of 9 x 7 x 3.5 cm, the weight of about 0.2 kg. Wide range of applications: the portable CO2 meter can be used as a tabletop or wall mounted device. Its small and compact design, light weight, very easy to carry. It is not only suitable for home use, but can also be used in places where many people are, e.g. in schools, hospitals, restaurants, shopping malls and other poorly ventilated places, production facilities, luggage warehouses and greenhouses. › See more product details Product description Description: Product Name: Air Quality Meter Real-time monitoring: the air quality meter can detect carbon dioxide, temperature, humidity, TVOC, HCHO in real time. EASY TO CARRY The air quality gauge is small and lightweight, so you can take it anywhere. Rechargeable The portable CO2 meter supports Type-C charging interface and can be used for more than 10 hours after charging. Specification: Voltage: DC 5 V. Battery capacity: 1200 mAh. Working temperature: 10-50 degrees Celsius Size: 9 x 7 x 3.5 cm. Weight: approx. 0.3 kg. Sensor semiconductor sensor charging port: Type-C Measuring range: CO2: 400-5000 PPM. TVOC: 0,000-9,999 mg or m³. HCHO: 0.000-9.999 mg or m³. Temperature: 0°C to 50°C. Humidity: 0 percent -99 percent RH Package includes: 1 x air quality detector. 1 x charging cable. Manual x 1. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.