Regrettably the wholesale price on this item was increased by almost 50% without any advance warning, giving us no choice but to raise the price. We are on the lookout for a different brand which we will offer as soon as it becomes available. The Brewer's Edge® digital temperature controller is a full featured, programmable thermostat that controls temperatures from -20 oF to 200 oF. Features a stainless steel submersible probe and a liquid crystal display that shows the exact temperature at the probe. Another excellent feature is the ability to set the differential (the temperature range at which the cooling or heating unit starts and stops). By setting the differential to a higher range, you can save energy and wear and tear on your refrigerator compressor. In addition to its use with a refrigerator or freezer, the digital controller can also control any electric heating device. Just like the mechanical temperature controller, no wiring is required- just plug the controller into any 110 volt outlet, plug the device you want to control into the digital controller, and run the sensor cord inside the space you want to be controlled. Instructions included.