The Franklin Machine Products 138-1305 Refrigerator/Freezer Thermometer is an essential tool for temperature monitoring in refrigeration environments. Featuring a 3" OD dial, it provides clear visibility for easy reading. The thermometer operates over a broad temperature range from -30°F to 70°F (-30°C to 21°C), making it versatile for use in various climate-controlled settings. This range ensures it can accurately measure and display temperatures critical to maintaining the freshness and safety of stored food items. The thermometer is NSF certified, indicating its compliance with public health and safety standards, which is particularly important for commercial kitchens, restaurants, and food storage facilities. Its durable construction ensures long-lasting performance in demanding environments. The Franklin Machine Products 138-1305 is a reliable choice for professionals who require precise temperature management to ensure food quality and safety. Its straightforward design and robust certification make it a key asset in both large-scale food service operations and smaller commercial establishments, offering peace of mind through accurate and dependable temperature readings.