- Thermo Fisher Scientific
Handheld waterproof thermometer. Infared and probe. LEDs indicate the HACCP zones: green light under 4°C (40°F), green light over 60°C (140°F), and red danger light between 4 to 60°C (40 to140°F).infrared is –67 to 482°F (–55 to 250°C), and probe range is –67 to 626°F (–55 to 330°C). Resolution is 0.2°C (0.5°F) between –10 and 200; otherwise 1°.