Cold Chain Equipment (CCE) plays a critical role in maintaining the integrity of vaccines. Proper temperature monitoring can help indicate what preventive and corrective maintenance is required for CCE. This job aid provides temperature examples from FridgeTag (30DTR) and Remote Temperature Monitoring Devices (RTMDs) with brief instructions for health care workers, technicians, and other facility staff to use temperature data to help diagnose issues with the CCE and more accurately respond with more proactive maintenance actions.