1, Temperature control range: -50°C~110°C 

2, 0.1°C screen accuracy, 1°C control accuracy 

3, Fan control for the heat sink 

4, Hysteresis error settings for Cooling & Heating both 

5, Parameters set while ex-factory 

6, Warning for over temperature or low temperature 

7, Parameters automatically saved when power-off 

8, Power input: DC 12V 

9, Along with temperature sensor (1 meter length wire) 

10, Relay current up to 10A/30V

11, Direct connection with TE cooler with automatic electrodes switching for constant temperature control. 

More information:http://www.tengdaelectronics.com/temperature-control-system/