LCD 2-line custom segmented display with icons Buttons 2 rows of 4 capacitive touch zones, allowing up to 8 individual buttons or combined to form larger buttons Backlight (Optional) Optional RGB LED backlight for multicolor LCD and button illumination Temperature Digital Temperature Sensor +/- 0.2° C (+/- 0.36°F) Humidity Sensor (Optional) Accuracy +/- 3% CO2 Sensor (Optional) Dual Beam, Self Calibrating NDIR Detection Range: 0-2000 ppm Accuracy @ 77°F (25°C): ± (50ppm + 2% of value) Temperature Dependence: 2ppm/°C (1 ppm/ °F) typical Pressure Dependence: 0.13% of reading per mm Hg Stability: 20 ppm/year (typical) Occupancy Sensor (Optional) Passive infrared motion (PIR) sensor Range: 5m (16.4 ft.) Coverage: 100° Horizontal Inputs 1 10kΩ input (16 bit A/D) Technology 32-bit processor Internal A/D, Flash and RAM Communications RS-485 port Delta LINKnet (up to 76800 bps) USB Service Port Used as virtual Com port to connect the BACnet® network to a workstation Near Field Communication (NFC) Passive 2-way short range Connectors Screw-type terminal connectors Wiring Class Class 2 / SELV Power 24 V AC/DC 2 VA no backlight 4 VA with backlight 6 VA with backlight and CO2 sensor Ambient 32° to 131°F (0° to 55°C) 10 - 90% RH (non-condensing) Dimensions With R (non-CO2) and SM backplate: 5.3 x 3.6 x 0.9 in. (13.3 x 9.3 x 2.3 cm) With R (CO2) backplate: 5.3 x 3.6 x 1.7 in. (13.3 x 9.3 x 4.3 cm) Mounted Surface Profile Recessed (both R backplates): 0.75 in. (1.9 cm) Surface Mount (SM backplate): 0.9 in. (2.3 cm) Compliance CE FCC Class B Listings UL 916