Accurately monitor two different areas in refrigerators, freezers, water baths, and incubators with this enclosed temperature-buffered sensor. Bottle insulates sensor from rapid temperature changes when refrigerator door is opened. Triple display simultaneously shows Minimum, Maximum, and Current temperatures for specified probe. Range is ?58 to 158°F and ?50 to 70°C with a resolution of 0.1° and accuracy of ±0.5°C between -30 to 50°C, otherwise ±1°C. Designed to meet current CDC requirements for vaccine storage and monitoring.