Check the listing for details. New Design Indoor Digital Timer Thermo Hygrometer New Open Box. Condition: Open box. Listed at 3.00 USD. This Indoor Digital Timer Thermo Hygrometer is perfect for keeping track of the temperature and humidity in your home or office. With its new design and open box, it is sure to be a great addition to your measuring and layout tools collection. The timer feature allows for easy tracking of time-sensitive tasks, while the indoor use designation ensures accurate readings no matter where it is placed. The brand new design of this thermo hygrometer is matched with its new open box condition, making it a great value for the price. Whether you are using it for home or office use, the digital display will provide you with accurate readings that are easy to read and understand. The timer feature is especially useful, allowing you to set specific times for tasks or projects.