Carbon dioxide detection, Carbon dioxide measurement range: 0-9999ppm. Air detection: Important indicators for building and home environment testing, Discomfort at concentrations over 1000ppm. Agricultural planting: Significantly improve plant photosynthetic efficiency, sugar accumulation. increase yield and quality Important for scientific planting. Raw material processing: It is widely used in the production of soda ash (Na2C03), baking soda (MaHCO3), etc. It can be used as an extractant when extracting substances by supercritical method. Temperature and humidity measurement: Support a variety of industrial temperature measurement. Quick measurement: 2s/time real-time refresh, The concentration of carbon dioxide is constantly changing and fluctuate greatly under certain conditions. Fast measurement results in more stable measurement values. Measurement of upper and lower limit values data retention. Over-standard alarm: When the carbon dioxide/temperature and humidity exceeds the set alarm value, the machine automatically flash the alarm and emit a beeping sound. 100 groups of data storage: Can store 100 sets of measurement data including carbon dioxide concentration and temperature and humidity. Power Supply:3 x AAA battery (Not included batteries) Color:As Shown Material:ABS Package Contents: 1 * SW-723 Gas Detector Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.