Necessary for food safety: Thermometer displays true oven temperature instantly to ensure safe food preparation Extreme temperature range: Thermometer reads between 0 and 300 degrees Celsius Perfect for any kitchen: Designed for professional kitchens with the highest quality in mind; Works perfectly in any home or commercial space Dishwasher safe: Advanced materials allow for dish-washing at commercial high temperatures Durable material: Stainless steel construction and shatterproof lens makes this thermometer highly dependable Battery free design: Mechanical thermometer reads instantly and without the need for battery power Adjustable measurements: User calibration nut ensures long lasting accuracy Protective sheath: Includes a protective sheath with pocket clip to protect food from contamination National Sanitation Foundation certified: This NSF certified product has been cleared for safe use with food and in kitchen environments