Omega Engineering”s FTO11 and FTD011 Series of tamperproof thermostats come with a fixed setpoint and are compact in design. The thermostats are CE-compliant products 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 temperature rise). Several different fixed-temperature setpoints are available. The dual models come with two thermostats in one unit — one normally closed (NC) and one normally open (NO) or two normally open (NO).