Features1High Performance: This product adopts high accurate sensor, which has the characteristics of wide measurement range, good linearity, good versatility, convenient use, long transmission distance. 2Accurate Temperature and Humidity Acquisition: Temperature acquisition, accurate measurement, the range can reach ?40 to 80. Humidity acquisition, the range can reach 0?100%RH, and the measurement accuracy is high. 3Wide CO2 and Pressure Range: CO2 measurement range is wide, there are multiple ranges to choose from. Wide range of 600?1100HPa pressure range, can be used in various environments. Can measure PM2.5 and PM10 concentrations at the same time. 4Wide Application: The wall mounted multi element transmitter can be widely used in various environmental monitoring, can monitor a variety of elements, and has a variety of signal output methods. 5Convenient to Use: 10?30V DC wide voltage range power supply. It is convenient for use in various environments, safe and reliable, beautiful in appearance, easy to install, and durable.SpecificationItem Type: Temperature and Humidity Transmitter Material: PlasticWeight: Approx. 194g/6.84ozSize: 110x70x38mm/4.33x2.76x1.50inCoding: 8 bit binaryData Bits: 8 bitsParity Bit: NoneStop Bit: 1Error Checking: CRC (Redundant Cyclic Code)Baud Rate: 400bit/s, 4800bit/s, 9600 bit/s can be set, the factory default is 9600bit/sDC Power Supply (Default): 10 to 30V DCPower Consumption: 1.2W12V DC, 25Average Current: 85mATransmitter Circuit Working Temperature And Humidity: -40 to +60, 0%RH-95%RH non condensingTemperature Measurement Range: -40 to +80Temperature Measurement Accuracy: 0.5Humidity Measurement Range: 0-100%RHHumidity Measurement Accuracy: 3%RHAir Pressure Measurement Range: 600-1100HPaBarometric Pressure Measurement Accuracy: 0.5HPaCO2 Measurement Range: 0-5000, 10000ppmDefault range 0-5000CO2 Measurement Accuracy: 20ppmPM2.5/10 Measuring Range: 0-1000ug/m3PM2.5/10 Measurement Accuracy: read numbers10%(25)Output Signal: 485 signalStability: 2%FSNonlinear: