[Precision Detection] 3-In-1 Detector is equipped with a sensitive and efficient sensor that helps us detect indoor CO2 ranging from 400~5000ppm, temperature ranging from 0~55, and humidity ranging from 0~99%RH. Adopts superior electrochemical detection module, with high accuracy, stable performance, can accurately detect carbon dioxide value. [Light-And-Sound Alarm]When the detected CO2 concentration exceeds 1000 or our preset value, the CO2 monitor will alert us by turning the LED light red and rhythmed beeps. [Automatic Calibration]Put the detector in a ventilated place for 24 hours, and the device will automatically calibrate. It supports / selection to meet different reading needs. [Multi-scene Use]This CO2 meter is small, practical and reliable, Widely applications: agricultural planting, greenhouse vegetables, production warehouse, material processing, , etc. Main Specification 1.Product Name: Air Quality Monitor 2.Model Name: -068 3.Detecting Item: CO2 / Temp / / Clock Display 4.CO2 : 400-5000ppm (50ppm + 6%) 5.Temperature : 0-55 (C/F switchable) 6.Humidity : 0-99% 7.WIFI : WIFI function active, display WIFI 8.Alarm : Once Active the alarm function 9.Battery : Show battery usage and charging status; 10.Battery: 2000mAh ( 18650 Working time: 15-20 Hours ) 11.LCD size: 60x60mm 12.Type-C Power Supply: 5V/1A 13.Size: 80x80x60mm 14..WIFI supporting: Tuya WIFI 15.Working current: 5V/500mA 16.Rated Power:5W 17.Standby Current: Less than 3mA 18.Alarm LED indicator: With Red when 1000ppm With white Less than 1000ppm Material: ABS colour: White Package Contents: 1 x 3-in-1 Air Quality Monitor 1 x USB Cable 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.