Large Dial Display Without Probe The Therma-Hygrometer is the perfect device for monitoring temperature and humidity levels in your home, office, or hydroponics setup. Featuring a newly improved case design, this versatile hygrometer offers maximum and minimum temperature and humidity functions for precise environmental control. With an integrated %RH and temperature sensor, it ensures accurate readings for optimal plant growth. The unit can be easily wall-mounted or used on a stand, making it adaptable for any space. Ideal for indoor gardening and commercial growing, this Therma-Hygrometer helps you maintain the ideal conditions for your LED grow lights and hydroponic systems. KEY FEATURES New improved case design Maximum, minimum temperature & humidity function integral%RH & temperature sensor Wall or stand mounting