Technical specifications:
1) Chinese display
2) Working voltage: DC12V (mainframe control panel supply)
3) Power: <10W (able in a poor light 8W)
4) Temperature control precision: ±1oC
5) Display distinguish rate: 1oC
6) Working environment: 0oC - 45oC, <90%RH, no dew
7) Place environment: -15oC - 60oC, <93%RH, no dew 
8) Communication by: RS-485
9) Distance: <1200m (length)

Technical specifications:
1) English display, pure blue backlight
2) Working voltage: DC12V  
3) Power: <10W (able in a poor light 8W)
4) Temperature control precision: ±1oC
5) Display distinguish rate: 1oC
6) Working environment: 0oC - 45oC, <90%RH, no dew
7) Place environment: -15oC - 60oC, <93%RH, no dew 
8) Communication by: RS-485
9) Distance: <1200m (length)
10) Based on 3PH-200C upgrade