Omega Engineering”sFTO11 and FTD011 Series of tamperproof thermostats come with a fixedsetpoint and are compact in design. The thermostats are CE-compliantproducts and are DIN rail-mountable. Modules are color coded — red for normally closed models (thermostat opens at temperature rise)and blue for normally open models (thermostat closes at temperaturerise). Several different fixed-temperature setpoints are available. Thedual models come with two thermostats in one unit — one normallyclosed (NC) and one normally open (NO) or two normally open (NO).