Formaldehyde DetectionTVOC DetectionAverage ValueAutomatic Alarm PLEASE NOTE Due to transportation restrictions, the package does not contain batteries. Please prepare batteries by yourself. Please understand. Thanks. PRODUCT DESCRIPTION •Strict Requirements For Health •Harsh Expectations For Air Both formaldehyde and TVOC can pose a serious threat to the health of family members. The Dingmeng Air Quality Tester (formaldehyde+TVOC) accurately monitors indoor formaldehyde and TVOC concentrations, constantly controlling indoor air changes, and comprehensively protecting family health. •High Precision Sensors •Let Formaldehyde Tell The Truth Built-in multiple sensors for faster and more accurate detection, provide you with accurate and reliable data. •Real Time Monitoring •Comprehensive Monitoring Small and portable, easy to operate, and can detect formaldehyde anytime and anywhere. Obtain accurate data, quickly calculate formaldehyde and TVOC concentrations in complex environments, and output accurate measurement results. •Built-In Buzzer •Automatic Alarm Built-in buzzer, when formaldehyde concentration reaches 0.1mg/m3, the buzzer will automatically alert you. •Double Thousand Digits •For More Accuracy Large LCD digital display, accurate to thousands of digits, the degree of air pollution is clear at a glance. PRODUCT PARAMETERS •Product Name: Air Quality Detector •Product Model: DM161 •Detection Temperature: 10℃~50℃ •Relative Humidity: 20% - 90% •Storage Temperature: - 10℃ ~ 60℃ •Atmospheric Pressure: 86Kpa ~ 106Kpa •Battery: 2 × 1.5V Batteries(Not include) PACKING LIST •1 × Air Quality Detector •1 × Product User Manual MORE PICTURES