Wireless Digital Thermometer

Monitor your off-grid refrigerator/freezer energy usage with these remote digital thermometers without opening the door. Set a minimum and maximum temperature range; when the temperature falls above or below preset values (after 15 minutes to prevent false alarms), audible and visible alarms notify you so you can more efficiently regulate your off-grid power or propane. Locate the two remotes inside your appliances; the main unit has several mounting options. Main unit: 2¼"H x 6"W x 1"D; remote sensors: 4"H x 1½"W x 1"D; 2 lbs. USA.