To monitor safe food storage temperatures in your refrigerator or freezer without opening the door, use CDN's (TA20) audio visual refrigerator and freezer thermometer. With both an audio signal and visual LCD panel with flashing LED lights, there's no guessing. Signal sounds at 15 or 46F/-9.5 or 8C. Because of its external operation, the TA20 Audio/ Visual Refrigerator/Freezer Alarm saves time and energy costs by minimizing the need to open the appliance door to monitor temperature.
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