Mechanical Food Service Thermometer Metal Detectable Yes Features Self Adhesive Tabs Manufacturers Warranty Length 1 yr Maximum Temperature 120 Degrees F Minimum Temperature -20 Degrees F Overall Diameter 1 1/2 in For Food Contact No Dial Size 1 1/2 in Product Type Refrigerator/Freezer Thermometer Accuracy +/-5 Degrees F Application Refrigerator/Freezer Display Type Analog NSF Certified No