Specification: Brand new Material: Plastic + Acrylic Color: Cream Size: approx. 200*60*22mm Humidity measurement accuracy (RH): 5% Temperature range: - 40 ~ +50 Feature: The highest-minimum thermometer is used to record the highest temperature and minimum temperature of air at a certain time. The temperature around the tube in a blue indicating needle of a wool stoma, blue as the temperature changes the index rise, and when the temperature drops, the blue pointer not affected by the temperature drop and changes, which indicates the maximum or minimum temperature. Fine workmanship and good performance. Convenient to use. How To Use: 1. The thermometer should be suspended in the air. 2. Observe the time of temperature, and make a decision. Record the temperature indicated at the lower end of the indicator when observing, and press the button to attract the needle and the column at both ends. Package included: 1 x Max-Min Thermometer Note: Item color displayed in photos may be showing slightly different on your computer monitor since monitors are not calibrated same. Please allow 1-2cm slight deviation due to manual measurement. Thank you