Working Principle
This air temperature and humidity sensor uses imported SHT11 chip and imported sensing module MS5540C. This module includes a temperature sensing element, humidity sensing element, a piezoelectric resistance pressure sensing element and an ADC interface IC, with a wide range, Strong anti-static ability. They are converted to digital MODBUS protocol output through the change of environmental parameters.
Technical Data
|
Item |
Specification |
|
Measuring range |
Temperature:--40-85℃ Humidity: 0-100%RH Pressure: 300-1100hPa |
|
Accuracy |
Temperature:≦±0.3℃(@25℃,typical) Humidity: ≦±3%RH(@25℃,10%-80%RH,typical) Pressure: ≦±0.3hPa(@25℃,950hPa-1050hPa) |
|
Resolution |
Temperature:0.01℃ Humidity: 0.01% Pressure: 0.1 hPa |
|
Working Voltage |
9V～24V(12V) |
|
Work Current |
DC12V <20ma |
|
Power Consumption |
DC12V <0.24W |
|
Output |
RS485(Modbus) |
|
Ingress Protection |
IP65 |
|
Work Environment |
Temperature -40℃～60℃ Humidity：< 100%RH |
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