Programmable Sensor

A complement to any room, the Reliable Controls SMART‑Sensor™ Electronic Paper Display (EPD) delivers a modern networked-sensor solution that allows you to connect with up to 10 configurable parameters related to your space.

Purchase Products

Product features

Aesthetic Design

  • Slim profile.
  • Installs into standard electrical box.

Multiple Screen Styles

  • Home screen displays default space conditions.
  • List screen displays all programmed objects.
  • Accessibility screen displays all values and icons in large format.

Easy Programming

  • 10 programmable objects, such as inputs, outputs, and values.
  • Program object values for user adjustment or as display only.
  • Configure objects to display on the home screen.
  • Icons for display: On, off, auto, manual, cool, heat, occupancy, fan, and fan speed.
  • Configure up to seven objects to display simultaneously.

Connection and Addressing

  • Configure network address using customized button combination.
  • Valid addresses are 1–16.
  • Accepts wires 14–26 AWG.
  • Four-wire connection.

Onboard Temperature Sensor

  • Dedicated 10 kΩ thermistor.

Built-In Configuration Tools

  • Use the SMART-Sensor EPD as an MSet Tool, Flow Tool, or Diagnostics Tool.

Language Library

  • The SMART-Sensor EPD hosts an onboard language library that contains over 90 common industry words and phrases in seven languages. Users can select from the following:  
  • English.
  • French.
  • Spanish.
  • Portuguese.
  • German.
  • Italian.
  • Simplified Chinese.

Optional Front Light

  • EPD screen glows faintly in low light or night conditions while in use, then turns off after 10 seconds of inactivity.

Order Options

  • CO2 sensor.
  • Humidity sensor.
  • Two inputs and two outputs.
  • Occupancy sensor.
  • VOC sensor. Must be ordered with humidity sensor option.
  • Jack option. Adds micro-USB connector and required network terminations to allow local access to the host controller using an X‑Port‑2 Converter with additional custom cables. Cannot be ordered on devices with both an occupancy sensor and a setpoint slider.


  • 5 years.


  • CE.
  • FCC CFR 47 Part 15 Class B.
  • ICES-3 (B).
  • UL 916 Listed.
  • WEEE.
RoHS 2 Certified

Technical specifications

Supply Voltages from Controller

  • Base model consumes 15 mA at 5 VDC.
  • -CO2 option adds 10 mA.
  • -FL option adds 4 mA.
  • -IO option adds 10 mA.
  • -OC option adds 0.2 mA.
  • -V option adds 20 mA.

Temperature Specifications

  • 12-bit A/D converter.
  • User calibrated to ±0.1°C (0.18°F) accuracy.
  • Onboard thermistor: 0°C to 50°C (32°F to 122°F).
  • Thermistor input: –40°C to 120°C (–40°F to 250°F).


  • 200 x 200 pixels.
  • 23 x 23 mm (15/16” x 15/16”).
  • Black and white.

Language Support

  • Supports seven languages.

CO2 Sensor (-CO2 Option)

  • Automatic background calibration period of 8 days.
  • Nondispersive infrared sensor.
  • 0–3,276 ppm range.
  • Accuracy ±50 ppm.
  • Nonlinearity <1% of full scale.

Front Light (-FL Option)

  • White LED front light.

Humidity Sensor (-H Option)

  • 0.1% display resolution.
  • 0%–100% range.
  • Accuracy ±2.4% maximum from 0%–90%.

Inputs (-IO Option)

  • Two thermistor or dry-contact inputs on devices with the ‑IO option. Only one input is available on models with the VOC option.

Outputs (-IO Option)

  • Two digital MOSFET relays.
  • Switch 24 VAC/VDC.
  • 500 mA maximum.

Occupancy Sensor (-OC Option)

  • Passive infrared radiation sensor.
  • 64 detection zones.
  • 94° horizontal range/82° vertical range.
  • 5 m (16.4 ft) maximum detection distance.

VOC Sensor (-V Option)

  • Automatic background calibration.
  • Heated metal oxide sensor.
  • 0-32,767 ppb range.
  • Indoor air quality applications.
  • Accuracy:
    • Typically 25% of measured value.
    • Maximum 50% of measured value.
  • Resolution:
    • 1 ppb (0 to 2,008 ppb).
    • 6 ppb (2,008–11,110 ppb).
    • 32 ppb (11,111–32,767 ppb).

Micro-USB Connector (-J Option)

  • Micro-USB connector and required network terminations to allow local access to the host controller using an X‑Port‑2 Converter with additional custom cables. Provides two-pin connections to the host controller's MS/TP network.
  • Cannot be ordered with devices that combine the ‑OC and ‑S options.

Wiring Terminals

  • 14–26 AWG (2.08–0.13 mm2).
  • Stranded or solid core.
  • Copper conductors only.
  • Low capacitance <25 pF/f (82 pF/f).


  • Base model: 12 cm L x 7 cm W x 1.9 cm H
    (4 3/4" L x 2 3/4" W x 3/4" H).
  • CO2 model: 12 cm L x 7 cm W x 2.5 cm H
    (4 3/4" L x 2 3/4" W x 1" H).


  • 0.086 kg (0.19 lb).

Ambient Limits

  • Operating: 0°C to 50°C (32°F to 122°F).
  • Shipping: –25°C to 60°C (–13°F to 140°F).
  • Humidity: 10%–90% RH noncondensing.


SMART–Net Connection

Screen Captures


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