This product USES the single chip microcomputer control system + high precision temperature measuring probe, on temperature control performance and precision of temperature control is superior to similar products. This product three window design, start and stop values real-time display, and have intermittent work, time switch machine, and other functions, grown in the greenhouse, aquatic animal husbandry and aquaculture, room temperature control, etc. Can be widely used, is the good assistant of the life that occupy the home!