Main attributes 
                        主要属性
                        
                        
                        
ON/OFF, 2-point, 3-point, stepping, cascade and and continuous control, 3-point-control for water evaporation cooling
Self-tuning to the setpoint and start up
Automatic start-up circuit
Hold function for output signal in case of sensor break
Analog Inputs individually configurable
625 ms cycle time
Freely configurable analog- and digital-outputs,
Easy 2-point  measurement correction also online via Blue Control
Connection of local operation (BT800)