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The Changhui YR-GFC series of economical display controllers features a modular design, offering a simple structure, easy operation, and good cost-performance ratio; they are suitable for industries such as plastics, food, and packaging machinery. http://yunrun.com.cn/upload/201605/26/201605261525535886.jpg Features ◆ Single-input, dual-screen LED digital display ； ◆It features 33 types of signal inputs, allowing users to select the appropriate input type as needed; the measurement accuracy is 0.3% FS ； ◆The thermal resistor and thermocouple signal resolution of the YR-GFC series of economical display controllers can be switched between 1℃ or 0.1℃ ； ◆The YR-GFC series of economical display controllers feature upper and lower limit alarm functions, with LED alarm lights for indication ； ◆Voltage and current transmission output signals are available as options ； ◆Supports RS485 communication interface, using the standard Modbus RTU communication protocol ； ◆Equipped with a DC24V power distribution output to supply power to field transmitters ； ◆Opto-isolation technology is used between input, output, power supply, and communication ； ◆The YR-GFC series of economical display controllers comes in 7 different sizes and styles for users to choose from ； ◆Parameter settings are locked with a password, and they are preserved permanently even when power is lost. Original text: http://blog.sina.com.cn/s/blog_17f47c20d0102ye1l.html