MESTEK 5 in1 Multifunctional CO2 Tester 400-5000PPM Digital Temperature Humidity Sensor Tester Air Quality Monitor

Features 1 Non dispersive infrared Absorption sensor2 Lithium battery3 USB fast charging4 Accurate measure5 Temperature humidity measure6 Sound alarm Analog barApplication 1 Indoor environment2 in car environment3 Office4 Baby room5 ClassroomSpecification Model CGD02Detect Gas CO2Measurement Range 400 5000PPMGas Resolution 1PPMWorking humidity 0 70 RHStorage environment 10 50℃ 5 95 RH Humidity measurement range 0 100 Humidity Resolution 1 RHTemperature measurement range 0 50°C 32 122°FTemperature Resolution 0 1°C 0 2°FCalibration method Baseline calibrationAlarm mode Sound and analog barCharge port Type CPower supply 3 7v 18650 lithium batteryBattery capacity 1500mAhCharge time 4 hoursOperating hours 10 hoursResponse time 30SSize 110 x 76 x 35mmWeight including battery 186gPackage included 1 x CO2 Meter