1. Wireless Refrigerator Thermometer One main thermometer unit paired with a remote sensor. It can display indoor temperature and a second zone (one half of a refrigerator/freezer or outdoor temperature) simultaneously for double protection of your food. The remote sensor lets you position readings away from the main unit for flexible monitoring. 2. Temperature Monitoring and Recording 24hour minimum and maximum temperature records help you easily track temperature changes in your refrigerator. The device records the and lowest temperatures and displays current temperature with up, down, or parallel arrows to indicate trend. 3. Alarm Function Builtin sound alarm activates when the temperature exceeds preset minimum or maximum values, prompting you to make timely adjustments. 4. Easy Installation and Placement Main unit mounting options include an integrated magnet for fixing to a refrigerator door, a hanging hole for wall mounting, or a table placement with the back bracket. The two transmitters come with clips and hanging holes for easy shelf placement and versatile positioning. 5. Use Scenarios Home kitchen monitoring: keep track of fridge and freezer temperatures to reduce food waste and ensure safe storage. Garage, RV, or secondary storage: monitor temps in a spare fridge/freezer or outdoor environment where accurate readings matter. Small office or cafe settings: manage temperatures across multiple cold storage zones with simple installation and clear alerts.