Product Description
Package inlcuded:
1 pcs R444A01_B Digital display RS485 Temperature and humidity sensor(External sensor)
Description:
Working voltage : DC 5-40V(6.5-28V recommended)
Working current : Digital tube turn off is 5MA(12V), Digital tube turn on is 18MA(12V)
MODBUS RTU protocol,03 Read,06 Write.
Serial baud rate : 9600(default),N,8,1
By modifying the RS485 address, up to 247 module s can be connected (More than 16 devices, it is recommended to use RS485 repeater)
Temperature and humidity sensor is AM2320
The voltage conversion module is DD4012SA,a High-efficiency and Low-heat voltage Converter
Size : Module is 59 X 30 X 18MM,Shell is 73 X 37 X 23MM,External sensor is 60 X 26 X 13MM
Weight : Module is 16g,Shell is 16g,External sensor is 15g
For more information, please contact me
How to use:
1 Display "Eror" after power-on
If "Eror" is displayed for a long time, it indicates that the sensor is not connected or is damaged
2 After 5 seconds, display the temperature or humidity
3 Trigger " KEY "button to switch the display temperature and humidity.(This parameter is powered down memory)
4 Press and hold the "KEY" button for 3 seconds to turn off or turn on the display.(This parameter is also powered down memory)
Note: If the digital tube is turn off after power-on, press and hold the "KEY" button until the digital tube is turn on
Typical application:
Indoor and outdoor temperature and humidity measurement
Temperature and humidity monitoring in vegetable garden
Weather forecasting, and monitoring
Temperature and Humidity Monitoring in Computer Room
Warehouse temperature and humidity monitoring
Farm temperature and humidity monitoring
Sensor parameters:
Wiring diagram:
