Siemens 540-660A ROOM TEMPERATURE SENSOR, BEIGESiemens 540 660A Room Temperature Sensor, BeigeThis Room temperature Sensor provides accurate, reliable sensing of room temperature for terminal Equipment Controller (TEC). This sensor has a flush mounted override button and a high accuracy set point slide. The sensor measures 3 11 32 high x 2 1 2" wide x 1 1 2" deep, has a Desert Beige plastic cover, and a temperature monitoring range from 55 to 95 Degrees Fahrenheit (13 to 35 Degrees Celsius)."