The AllPoints Foodservice Parts & Supplies 621128 is a solar-powered digital thermometer designed for refrigerator and freezer applications. Featuring a 3-inch outer diameter flange, it fits securely into a 2-inch hole for easy installation. The high-visibility 3/8-inch LCD display provides clear temperature readings within a range of -60°F to 160°F. With a 10-second update interval, you can monitor temperature changes promptly. The thermometer is housed in a durable stainless steel case and flange, ensuring longevity and reliability. It is recess mounted and meets NSF standards for safety and performance.