Suggested Retail:$40. AcuRite 00986 Refrigerator Thermometer with 2 Wireless Temperature Sensors & Customizable Alarms for Fridge & Freezer, Standard. This dual-purpose freezer and fridge thermometer manages to be in two places at once. Using two wireless, remote thermometers, communicating with a door- or wall-mounted display you will be able to:Be alerted when freezer or refrigerator temperatures are out of preferred range Store foods at safe temperatures to prevent food spoilage Avoid related foodborne illnesses Wireless thermometers The digital thermometer display shows refrigerator and freezer temperatures, and records highs and lows for each environment, as recorded by each remote thermometer.Programmable alarm notifies you audibly and visually when temperatures exceed your set minimum or maximum range Digital thermometer display has magnetic and keyhole mounting Comes with one wireless refrigerator thermometer and one wireless freezer thermometer The digital display is powered by 2 AAA batteries. Each sensor is powered by 2 AA alkaline or lithium batteries (not included). Lithium batteries recommended for use in sensors for temperatures below 4 degrees Fahrenheit (-20 degrees Celsius). 1 x 5.8 x 2.4 inches. 7 DAY FULL REFUND GUARANTEE ON THIS ITEM IF ANY ISSUE IS FOUND THAT WAS NOT DESCRIBED/PICTURED. PAID DELIVERY AND 7 DAY ALTERNATE PICK-UP ALSO AVAILABLE. SEE NOTES TO BIDDER, IN AUCTION DETAILS, AT THE TOP OF PAGE 1 FOR MORE INFO.