Formaldehyde CO2 HCHO TVOC LED Digital Display Meters Tester Mini Carbon Dioxide Air Detector Gas Analyzer Protable Air Quality Tester Precise and Intelligent Detection

This product is a simple and reliable measuring instrument that combines ease of use and performance, it allows you to track 3 key air quality factors: TVOC, HCHO?CO2   Specifications: VOC measurement index: 0.001-9.999 Display mode: HD LED display Test principle: semiconductor gas sensing principle Test items: formaldehyde, TVOC, CO2 Detection temperature: - 10 ° C ~ 45C Alarm mode: beep alarm Measurement method: sensor induction technology " Sampling mode: diffusion sampling monitoring mode automatic Power supply: battery 5 (not included) Working voltage: 2.4-3.0v Package weight: 170g/6oz Product size: 135 * 62 * 22mm/5.31*2.44*0.8in   Packing List: 1*Tester