This lot includes a Temptronic 5.25" ThermoChuck Hot/Cold Temperature Chuck along with a TP37D4 Controller, as shown. These items look to be in good cosmetic condition, showing some signs of wear. They power up, as shown in the photos above. The "Add Water" light is always on, even after I added enough water for it to recirculate just fine. I connected the ThermoChuck and Controller together with some recirculating hoses (not included), and reduced the controller set point to below zero, and the ThermoChuck cooled down until frost started accumulating on the stage. However, the controller is missing the thermocouple connection, so I don't think it has any way of sensing the chuck temperature and stabilizing it at the set point, so it just keeps cooling down. I tried getting the stage to heat up, but it would not. I'm not sure if that is due to the missing thermocouple connection as well, or if its a separate problem. This is the extent of my testing of these items, and they are being sold as-is, for parts or repair. Approximate overall unpacked dimensions: 10"H x 19"W x 23"D.