1. Product Introduce

The relative humidity of air is the ratio ofthe absolute humidity in the air to the saturated absolute humidity at the sametemperature, and the result is a percentage. (That is,

the percentage of watervapor in the air in a certain period of time and the percentage of saturatedwater vapor at that temperature), expressed as RH.

The Air temperature, humidity transmitters use digital temperature and humidity sensors,which have been finely calibrated during production. The calibration data is

stored in the internal memory. The sensor has digital output and can becompletely interchanged. It does not need to undergo complex verification. The calibration process

has a good performance in terms of measurement accuracy,linearity, repeatability, interconversion, consistency, etc., and it has a temperaturecompensation circuit which can be used at different ambient temperatures. Wehave designed three types including the wall-mounted without screen and withscreen and outdoor louver type.

It is easy to use and is very suitable forvarious fields.

2. Product Features

1. Adopt industrial-grade temperature, humiditysensors for more accurate and reliable measurement

2. High cost performance, wide voltage design

3. Digital linearization correction, highprecision and high stability

4. Full range temperature and humiditycompensation, wide measurement range, optional measurement range

5.Flexible installation, easy to use, small size, light weight, anti-vibration

3. Productapplication

It is widely used in meteorological stations, greenhouses, environmentalmonitoring stations, medical and sanitation, purification workshops, precisionlaboratories and other

fields that need to monitor air temperature and humidity.

4. Product Parameter

(1) Technical Parameters

Ø Measuringrange: Standard －30 ～ 70 ℃ or0 ～ 50 ℃, other temperature ranges can be customized

Ø Humidityrange: 0 ～100% RH (non-condensing state)

Ø Accuracy:± 0.2 ℃ (@ 25 ℃); ±3% RH (10% ～90%)

Ø Repeatability:± 0.1 ℃; ± 0.1% RH

Ø Long-termstability: <0.04 ℃ / year; <0.5% RH / year

Ø Outputsignal:

A: Voltage signal (0~2V, 0~2.5V, 0~5V, 0~10V,one of four)

B: 4 to 20 mA (current loop)

C: RS485 (standard Modbus-RTU protocol, devicedefault address: 01)

Ø Supplyvoltage: 5 ~ 24V DC (when the output signal is 0 ~ 2V, 0 ~ 2.5V, RS485)

Ø 12~24VDC (when the output signal is 0~5V, 0~10V, 4~20mA) (can be customized 3.3 ~ 5VDC)

Ø Workingenvironment: temperature -55~ 120 ° C;

Ø Humidity≤ 95% RH

Ø Responsetime: <1S

Ø Powerconsumption: ≤0.5W

Ø Impedancerequirements for current signals

5. Product size

6. Line connectiondiagram