The LAE AD2-28C1S5E-B Defrost Controller is a two-stage design with 5 relay outputs, probe inputs for measuring control temperature can be either NTC or PTC style sensing probes.
The base price is for the controller only,
the add on option is for the LCD display model LCD-5S and the
connecting ribbon cable to connect the two together. The ribbon cable
length is 1.5 metres. See below the brochure for more details on this LAE controller.