▶With large and clear LED dual display for better readability.Wide temperature measuring range -40~120 degrees (-40~248 Fahrenheit). ▶Cooling and heating control, equipped with power supply cord. ▶Safty for use.Delay protection function.Support brown-out storage(Set parameters is still valid after short circuit). ▶Wide range of applicationsThis professional temperature controller can be used for vegetable greenhouse, domestic water tanks, refrigerator, industrial chiller, bolier, aquarium, aquaculture and other temperature-controlled systems. ▶Stable performance, good consistency.