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Wireless Door/Window Sensor
WS-S-902

As part of Carrier’s wireless sensing line, wireless door/window sensors are used to detect when windows and doors are opened or closed in a space. Because there are no wires to run, they can be added to your building easily.

Wireless sensors work in conjunction with a wireless adapter, which enables wireless communication between the sensors and an i-Vu® BACnet controller in the space. By sensing when windows and doors are opened wirelessly, our i-Vu controllers can make smart decisions to optimize the control of heating, cooling, and lighting systems in the building, providing optimum occupant comfort and energy efficiency.


  • Easy to install
  • Communicates on the Rnet sensor network via a wireless adapter
  • Can be installed up to 60’ away from wireless sensors
  • Enables wireless sensing on new or retrofit projects
  • Wireless software included for quick and easy sensor pairing
  • Senses opening/closing of door or window via magnetic relay switch
  • Wireless and battery-less space sensors (assuming sufficient lighting exists in space)
  • Maintenance-free capacitors power the sensors during unlit periods for up to 4-days without a light source
  • No repeaters or amplifiers required for zone-based applications
  • Can co-exist on Rnet with Carrier’s wired ZS sensors
  • Single-zone controllers can support a total of 5 sensors
  • Multi-zone controllers can support up to 15 sensors
Power supply Solar harvesting, internal energy storage
Supplemental battery A CR1216 battery is included to supplement power during commissioning and for low-light conditions
Maximum operating life Up to 4 days with no light power or battery
Time to fully charge depends on available lux
Full charge in 8 hrs @ 1000 lux or 24 hrs @ 333 lux
Maximum sensor gap 0.25 in. (6.4 mm)
Protocol Customized version of EnOcean®
Radio frequency 902 MHz (North America)
Transmission range Typically, 60 ft. (18.29 m) maximum from wireless adapter, assuming sensor and wireless adapter are separated by no more than 1 drop ceiling or 2 walls (drywall with metal studs)
Transmission interval The sensor transmits:
• On change of sensed value, and
• At a regular 25-minute interval (heartbeat).
Minimum illumination strength 15 lux, constant
Degree of protection IP50
Operating environment Indoor rated only -32° to 131°F (0° to 55°C) 5% to 95% RH (non-condensing)
Housing ABS plastic, ceiling white color
Weight 0.97 oz. (27.5g)
Dimensions Sensor: 3.15”L x 0.83”W x 0.59”D (8.0 cm x 2.1 cm x 1.5 cm)
Magnet: 3.15”L x 0.47”W x 0.5”D (8.0 cm x 1.2 cm x 1.3 cm)
Compliance United States of America
FCC CFR 47, Chapter 1, Subchapter A, Part 15, Subpart B
Class B Contains FCC ID: SZV-STM300U
UL-916 (PAZX) Energy Management Equipment

Canada
Industry Canada Compliant, ICES-003, Class B
cUL Listed UL-916, PAZX7, Energy Management Equipment

Europe
EN50491-5-2:2009; Part 5-2: EMC requirements for HBES/BACS used in residential, commercial and light industry environment
EN50491-3:2009 Part 3: Electrical safety requirements for Home and Building Electronic Systems (HBES) and Building Automation and Control Systems (BACS)
Low Voltage Directive: 200695/EC RoHS Compliant: 2011/65/EU

Australia and New Zealand
C-Tick Mark AS/NZS 61000-6-3
  • Easy to install
  • Communicates on the Rnet sensor network via a wireless adapter
  • Can be installed up to 60’ away from wireless sensors
  • Enables wireless sensing on new or retrofit projects
  • Wireless software included for quick and easy sensor pairing
  • Senses opening/closing of door or window via magnetic relay switch
  • Wireless and battery-less space sensors (assuming sufficient lighting exists in space)
  • Maintenance-free capacitors power the sensors during unlit periods for up to 4-days without a light source
  • No repeaters or amplifiers required for zone-based applications
  • Can co-exist on Rnet with Carrier’s wired ZS sensors
  • Single-zone controllers can support a total of 5 sensors
  • Multi-zone controllers can support up to 15 sensors
Power supply Solar harvesting, internal energy storage
Supplemental battery A CR1216 battery is included to supplement power during commissioning and for low-light conditions
Maximum operating life Up to 4 days with no light power or battery
Time to fully charge depends on available lux
Full charge in 8 hrs @ 1000 lux or 24 hrs @ 333 lux
Maximum sensor gap 0.25 in. (6.4 mm)
Protocol Customized version of EnOcean®
Radio frequency 902 MHz (North America)
Transmission range Typically, 60 ft. (18.29 m) maximum from wireless adapter, assuming sensor and wireless adapter are separated by no more than 1 drop ceiling or 2 walls (drywall with metal studs)
Transmission interval The sensor transmits:
• On change of sensed value, and
• At a regular 25-minute interval (heartbeat).
Minimum illumination strength 15 lux, constant
Degree of protection IP50
Operating environment Indoor rated only -32° to 131°F (0° to 55°C) 5% to 95% RH (non-condensing)
Housing ABS plastic, ceiling white color
Weight 0.97 oz. (27.5g)
Dimensions Sensor: 3.15”L x 0.83”W x 0.59”D (8.0 cm x 2.1 cm x 1.5 cm)
Magnet: 3.15”L x 0.47”W x 0.5”D (8.0 cm x 1.2 cm x 1.3 cm)
Compliance United States of America
FCC CFR 47, Chapter 1, Subchapter A, Part 15, Subpart B
Class B Contains FCC ID: SZV-STM300U
UL-916 (PAZX) Energy Management Equipment

Canada
Industry Canada Compliant, ICES-003, Class B
cUL Listed UL-916, PAZX7, Energy Management Equipment

Europe
EN50491-5-2:2009; Part 5-2: EMC requirements for HBES/BACS used in residential, commercial and light industry environment
EN50491-3:2009 Part 3: Electrical safety requirements for Home and Building Electronic Systems (HBES) and Building Automation and Control Systems (BACS)
Low Voltage Directive: 200695/EC RoHS Compliant: 2011/65/EU

Australia and New Zealand
C-Tick Mark AS/NZS 61000-6-3

California residents please see Proposition 65