General description This Refrigerator Thermometer with Freezer Alarm features two wireless sensors that can be used in various locations, including inside the refrigerator and for outdoor temperature monitoring. The main unit displays both the room temperature and the temperatures from the two sensors simultaneously, providing a comprehensive overview of your environment. Technical specifications Temperature range: indoor (-10℃~60℃/14℉~140℉), outdoor (-40℃~60℃/-40℉~140℉) Accuracy: ±1℃/±2℉ Transmission range: 100 meters (open area) Alarm Reminder & MAX/MIN Record Audible alarm function for temperature alerts Manual setting for maximum and minimum alarm values Audible alarm sounds when temperature reaches preset limits Max/min record provides temperature history for the past 24 hours Easy to Use 6 function buttons for easy operation Functions include turning on/off the alarm, converting temperature units (°C/°F), and clearing max/min records Compact and user-friendly design suitable for