LED Digit Display Temperature Humidity Sensor Module RS

Description:

Temperature and humidity combined sensor AM2320 digital temperature and humidity sensor is a digital signal output has been calibrated. Using special temperature and humidity acquisition technology, ensure that the product has a very high reliability and excellent long-term stability. Sensor consists of a capacitive moisture element and an integrated high-precision temperature measurement devices, and connected with a high-performance microprocessor. The product has excellent quality, super fast response, strong anti-interference ability.

Features:

• 
  The voltage conversion sensor module is DD4012SA, a high-efficiency and low-heat voltage converter.
  
• 
  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.
  
• 
  RTU protocol, 03 Read, 06 Write.
  
• 
  Widely used for dehumidifiers, testing and inspection equipment, automotive, automation, gas stations, home appliances, humidity control, medical, and other relevant humidity measurement and control.
  

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.

Wiring Diagram:

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)

Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.

Package Includes:

1 x Module

1 x External Sensor

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