If you are looking for portable an air quality detector with , I will tell you that our product will be your . It adopts high grade material, can keep it for a long time. Features - Material: Glass and ABS. - The actual application of carbon dioxide detector, agricultural planting, greenhouse vegetables, production warehouse, material processing, etc. - Improving plant photosynthetic efficiency, accumulating sugar content, increasing production and - are of great significance to scientific planting. - The large screen design is clear and easy to see, and the carbon dioxide detection is clear . - Real-time monitoring of pollution data, real-time display of the concentration of carbon dioxide per cubic meter. - It does not take up too much space, can be used in the home. Specification - Charging current: 700mA. - Working current: 150mA. - Standby current: 10uA. - Low voltage protection: 3.35V. - LCD voltage: 3.3V. - CO2 range: 400-5000PPM. - range: 0-2000mg/ . - range: 0-2000mg/ . - Humidity range: 0-100%. - Temperature range: 0-100 degree centigrade. - CO2 alarm : >2000 PPM alarm 5 times. - Screen size: 2.8 inch. - Reaction: <150s. - Test temperature range: 0-70 degree centigrade. - Humidity test range: 0- RH. - Working voltage: 5V/1A adapter charging. - Battery capacity: 1200mAh. - Charging time: 2h. Package list: 1 x CO2 Detector 1 x Data Cable 1 x Manual