The SI-10 sets a new standard in aesthetics and functionality. The architectural design of the SI-10 was achieved through the input of industry professionals, as well as a multitude of end users. It’s copyrighted design has been described as “Simple Elegance”. The SI-10 quietly blends in to its surroundings and is as comfortable on the boardroom wall as it is in a classroom. Rave reviews have also been received by custom homeowners and designers. Architects and designers can now work in harmony with engineers and contractors. The aesthetic integrity of a building no longer has to be compromised to deliver optimum comfort and performance.

The simply elegant design of the SI-10 is only enhanced by it’s Superior Accuracy and Performance (SAPTM ). Optimum user functionality has been built in to every SI-10. The intuitive temperature sensor interface utilizes discreetly concealed adjustment buttons. The ease of use is unprecedented. When an adjustment is made through the SI-10, visual feedback is provided through the integral LCD display. The custom designed display incorporates 4 digits as well as 8 alphanumeric characters to aid in the simplicity of use and design.

The “up” and “down” push-buttons are used to adjust the temperature set-point offset for optimum occupant comfort. The maximum range of set point offset can be easily modified in the programming mode. The maximum set point offset is factory set at +/- 2, but can be field adjusted up to a maximum of +/- 10 through the programming mode. No special tools or software are required to accomplish this. All programming mode functionality is accomplished in the field using a sequence of button presses.

The Si-10 incorporates a precision thermistor for Superior Accuracy and Performance (SAPTM ) of space temperature sensing assuring long term stability and maximum accuracy.

In addition to the up and down arrows for set point offset adjustment, the SI-10 has a third button for after hours override requirements. The LCD momentarily displays OVERRIDE to provide visual confirmation to the occupant.


Input Voltage Range: 12-28 Vac or Vdc
Maximum Consumption: 2 VA
Protection Circuitry: Transient Over voltage, ESD

Operating Temperature: 0 °C to +50 °C, 32 °F to 122 °F
Storage Temperature: -20 °C to +70 °C, -4 °F to 158 °F
Relative Humidity: 5% to 95% (non-condensing)

Output – Temperature
Temperature Sensor: Onboard Thermistor, 10K Type II
Output: Resistance Ohms, 10K at 25 °C, 77 °F
Accuracy: ±0.2 °C, ±0.36 °F

Output – Set Point
Resistance Range: 0 – 10K ohms
Maximum Applied Voltage: 5.5 Vdc

Output – Override
Digital: Push-button
Rating: 5 volts DC, 200mA

Display: 8 Character Alpha-Numeric
4 Digit LCD Display
Dimensions: L 4.90” x W 3.13” x H 1.0”
(125 x 80 x 25 mm)
Material: ABS, UL 94-VO rated

Period: 2 Years (Limited)


SI-10 Datasheet Data Sheet
SI-10 Datasheet


SI-10 Operational Manual - Temperature Sensor Data Sheet
SI-10 Operational Manual – Temperature Sensor


SI-10  —  standard model