3 in 1 CO2 Meter Air Quality Monitor Handheld 5000Ppm CO2 Monitor Measurement Carbon Dioxide / Detector S8601 GSY Summary: S8606 CO2 detector adopts carbon dioxide sensor and temperature and humidity sensor. The instrument is used to measure carbon dioxide content and_x000D_ temperature and humidity in the environment, and is widely used in agriculture, aquaculture and industrial fields. Such as: planting greenhouses, livestock farms, beer, carbonated beverages, energy saving and environmental protection products production process and underground operation safety production._x000D_ In our daily living environment such as:_x000D_ kindergartens, schools, office buildings, shopping malls, supermarkets, stations, hospitals and other public places, monitoring of carbon dioxide concentrationcan improve the quality of air, therebyimproving learning and work efficiency; Prevent the spread of infectious diseases and ensure public health and safety._x000D_ _x000D_ Features: _x000D_ Measuring CO2 content, temperature, humidity_x000D_ Temperature unit: C / F conversion_x000D_ Measurement result HOLD function_x000D_ LCD two-line display, showing both CO2 content and temperature and humidity._x000D_ Green/yellow/red backlight prompt function_x000D_ Automatic shutdown function_x000D_ Description: _x000D_ 3 x 1.5V AAA batteries (does not include)_x000D_ Warmtips: _x000D_ The measuring range of the instrument is 400-5000ppm. If it exceeds 5000ppm, H1 will be displayed and there will be a continuous beep. It needs to be shut down and restarted before testing._x000D_ S8601 is a semiconductor sensor_x000D_ Tips: The product may be updated constantly, The Actual Product May Have Slight Differences Or Color Differences the color and appearance may be changed, please don't mind. And take a consideration before place the order if you have request for color or appearance._x000D_ Material: plastic_x000D_ colour: black+red_x000D_ _x000D_ Package Contents: _x000D_ 1 x detector_x000D_ _x000D_ Only the above package content, other products are not included._x000D_ 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. _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_