Specifications:
1) Three speeds adjust automatically
2) LCD display makes reading and operation easy and accurate
3) Display temperature is selectable: Celsius or Fahrenheit  
4) Key card function for hotels can save energy under non-occupancy 
5) ON/OFF output to control water valve; 0 - 10V AC output to control water 
    valve; floating control water valve optional
6) Aux. electric heating control optional
7) PC/ABS top-grade housing makes it never change color
8) Optional functions: 
    a) RS 485 communication interface to be connected with PC or other systems
    b) 2 - 5 days programming
    c) Infrared remote control
    d) Blue backlight
    e) Energy-saving under non-occupancy

Specifications:
1) Accuracy: +/- 0.5C
2) System configurations: multi-stage heat pump systems, one or two stage heat, 

    one or two stage cool, heat pump
3) 1st stage differential: -0.5 - 0.5C, adjustable
4) 2nd stage differential: 1 - 3C, adjustable
5) Dimensions: 120 (L) x 90 (W) x 32 (H)mm
6) Automatic compressor short cycle protection 
7) Low temperature protection
8) Two temperature degrees are selectable, Celsius or Fahrenheit 
9) PC/ABS top-grade housing
10) Optional functions: 
      a) Programmable function can set 2 - 5 days programming
      b) Infrared remote control
      c) Blue backlight
      d) External sensor
      e) Room humidity detection and display