Eletechsup DC 5V 12V 24V Digital Display Modbus RTU RS485 Temperature Humidity Sensor Module AM2320 Replace DHT11 DHT22 DS18B20 PT100 -1-

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 humi dity 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 Weight : Module is 16g,Shell is 16g   Note:  With the built-in sensor version (R444A01_A), turn on the display for a long time will 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)