Subzero defrost terminator. Brand new. Notes from manufacturer is as follows:

Sensor,Defrost Terminator SVCE (601F, 601F-2,
          700TC/I, 700TF/I, 700BF/I, 700TC/I-2,
          700TF/I-2, 700BF/I-2, 700TC/I-3,
          700TF/I-3,700BC/I-3,700BF/I-3,736TC/I,
          736TFI)
 CAUTION: DO NOT USE ON MODEL UC-24C, SEE 7006594

Please make sure this is the part you need. Subzero does not accept returns, neither do I. Thanks.