Taylor Precision Products 5925N Classic Design Freezer/Refrigerator Utility Thermometer Compact and accurate, this refrigerator/freezer thermometer provides crucial temperature readings for food safety applications. Easy-to-read temperature range indicators provide at-a-glance readings for freezer zone, refrigeration zone and danger zone conditions. A shatterproof clear plastic lens encases the thermometer and aids in accurate readings. The thermometer fluid is non-toxic and safe in the event of breakage. Air bubbles in the liquid can occur during shipping and can be removed by tapping the product with the bulb end down to reattach the fluid. This thermometer is backed with a lifetime-limited warranty.