Features 1、【Multi-function Detection /u0026 High-precise Electrochemical Sensing】: VT-CHO2 is a multi-function detector that can detect five parameters of formaldehyde, TVOC, carbon dioxide, temperature, and humidity at the same time to meet a variety of testing needs. Support Fahrenheit/Celsius switching. Adopt high-precise electrochemical sensors to ensure accurate and reliable data. 2、【Full-color LCD Display】: The device adopts a full-color LCD display, clearly displaying various testing data. With its user-friendly interface, the information is clear at a glance, ensuring air quality is under your control. 3、【Intelligent Alarm System】: With real voice reminder function. It is designed with a buzzer, voice alarm, and mute mode. If the data exceeding the threshold is detected, the alarm is immediately activated, while the screen displays the level of air quality to ensure user safety. 4、【1000mAh Battery /u0026 Low Power Consumption Standby】: Equipped with 1000mAh high capacity lithium battery, low power consumption design, ultra-long working time. Energy-saving mode can continue to work for about 20 days to meet the long-term detection needs. 5、【Portable and Humanized Design】: A bracket is designed on the back of the product and carried with a lanyard for easy carrying and placement. It can be smoothly placed on any flat surface, adapting to diversified use scenarios. 6、【Wide Applications】: Suitable for air quality, temperature, and humidity testing in offices, homes, camping tents, fireplaces, automobiles, factories, places of business, and other environments. Specification The VT-CHO2 is a multi-functional detector that simultaneously measures five parameters: formaldehyde, TVOC, carbon dioxide, temperature, and humidity. In energy-saving mode, the product can continuously test for about 20 days. It is designed with a buzzer, voice alarm, and mute mode. If the data exceeding the threshold is detected, the alarm is immediately activated, while the screen displays the level of air quality to ensure user safety. A bracket is designed on the back of the product and carried with a lanyard for easy carrying and placement. It can be used to detect air quality, temperature, and humidity in various environments such as homes, camping tents, fireplaces, automobiles, factories, business places, and other environments. Features: 【Multi-function Detection & High-precise Electrochemical Sensing】: VT-CHO2 is a multi-function detector that can detect five parameters of formaldehyde, TVOC, carbon dioxide, temperature, and humidity at the same time to meet a variety of testing needs. Support Fahrenheit/Celsius switching. Adopt high-precise electrochemical sensors to ensure accurate and reliable data. 【Full-color LCD Display】: The device adopts a full-color LCD display, clearly displaying various testing data. With its user-friendly interface, the information is clear at a glance, ensuring air quality is under your control. 【Intelligent Alarm System]: With real voice reminder function. It is designed with a buzzer, voice alarm, and mute mode. If the data exceeding the threshold is detected, the alarm is immediately activated, while the screen displays the level of air quality to ensure user safety. 【1000mAh Battery & Low Power Consumption Standby】: Equipped with 1000mAh high capacity lithium battery, low power consumption design, ultra-long working time. Energy-saving mode can continue to work for about 20 days to meet the long-term detection needs. 【Portable and Humanized Design】: A bracket is designed on the back of the product and carried with a lanyard for easy carrying and placement. It can be smoothly placed on any flat surface, adapting to diversified use scenarios. 【Wide Applications】: Suitable for air quality, temperature, and humidity testing in offices, homes, camping tents, fireplaces, automobiles, factories, places of business, and other environments. Specifications: Name: Air Quality Tester Material: ABS Color: white, pink, blue, black (optional) Battery: 1 * 1000mAh battery (included) Working voltage: 5V Item size: 84 * 55 * 19.5mm / 3.31 * 2.17 * 0.77in Item weight: 80g / 2.82ounce Package size: 112 * 112 * 27mm / 4.41 * 4.41 * 1.06in Package weight: 160g / 5.64ounce Packing List: 1 * Air Quality Tester Package List Packing List: 1 * Air Quality Tester