LED Temperature Humidity Sensor Digit Display RS485 Modbus RTU Humidity Temperature Sensor

Specifications: 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) Serial Baud Rate: 9600(default), N, 8, 1 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. Note: With the built-in sensor version (R444A01_A), turn on the display for a long time will let the temperature rise 1-2 degrees Celsius. It is recommended to turn off the digital tube, or use a version with an external sensor (R444A01_B) Package Includes: 1 x Module 1 x External Sensor