The TS1110U Digital Temperature Switch is designed to control cold regulation, defrost cycles and evaporator ventilation. The unit features dual probe input, configurable digital output, three 8 amp SPST relays and alarm output. The user is able to program 49 different parameters including set point, differential, cycle time, ambient probe adjustment, alarm and digital input using the tactile front keypad. Password protection is available for all the parameters. The TS1110U includes two thermistors with 1.5 meter (5 ft) cable, fitting clips for panel mounting, and instruction manual.