Co2 Monitor Sensor Temperature and Humidity Sensors for Home Office

3-in-1: can use as a carbon dioxide concentration detection, thermometer and hygrometer at the same time.Battery supply: built-in 1600mAh lithium battery, use USB charging cable to charge it.LCD screen: display the current CO2 data, temperature and humidity data.Easy to operate: long press the on-off key for 3 seconds to turn on and off. It will detect the CO2 automatically.Compact and portable: can be placed in the kitchen, living room, bedroom, or take it when going out.Response Time: less than 120SValue Update Time : less than 3SCO2 Detection Range: 400~5000PPMCO2 Detection Sensitivity: +/- (50ppm+5% Readings)Temp Measurement Accuracy: +/- 0.2Humidity measurement Accuracy: +/- 2%RHDetection Technology: Non-dispersive infrared absorption (NDIR)Charging Mode: DC5V and micro-USB interfaceSize: 90x80x40mmCO2 Concentration Indication:GOOD: 400-1000ppmNORMAL: 1001-2000 ppmPOOR: 2001-5000 ppmcolour: whiteMaterial: ABSPackage Contents:1 x Carbon dioxide detector1 x English manualOnly the above package content, other products are not included.Note: Light shooting 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.