This Avantco A Plus 44712350131R digital controller with temperature probe is the perfect replacement for what comes standard with Avantco AP-23R and AP-49R series reach-in refrigerators. It is a direct replacement for the original part. Maintaining the proper temperature is vital for food safety, so if your unit's controller needs to be replaced, it's important to do it promptly. This kit includes a digital controller and (1) 118" temperature probe.