Controller turns any piece of equipment on or off when temperature rises above high set point or falls below low set point. Wide setting range of –4 to 140°F and –20 to 60°C permits maintaining temperatures above or below ambient. Control heating elements, cooling blocks, hot plates, heating mantles, cooling systems, or incubators to an accuracy of ±1°C. Controller may be set in 1° increments. Display reads in °F and °C with a 0.1° resolution. Unit accepts standard, three-pronged plug and controls equipment rated to 1800 watts, 15 amps.