TA7-SRR PID Temperature Controller With 2 Alarms Dual display of Fahrenheit (F) and Celsius (C) (Ship From US) Apply with step control, 1 independent PID control for heating/cooling over temperature. TA series of temperature controller is available for many TC or PID input, adopt some advanced technology such as multi digital filter circuit, autotune PID, fuzzy PID that make it very precise, stable, of strong anti-interference and simple operation. Widely used in auto system in line of light industry, chemistry, machinary, metallurgy, ceramics, petrification industry, or temperature control and adjust system of food & beverage, oven, furnace, plastic extruder heating process etc. This is a dual display universal digital programmable temperature controller & indicator that supports many type of thermocouple sensor Auto-tuning PID adjustment: 3 build-in Auto-Tuning Time proportion PID Algorithms to choose for different applications or environments to be controlled. (For variety of industries or home projects heating or cooling applications.)