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White rectangular wall sensor with OLED screen and screw terminals

SIEMENS

SIEMENS QAA2212.FWSN Room Temperature Sensor OLED BACnet

SKU CH-7SHE-WD8NP

Room temperature sensor with OLED display and BACnet communication for commercial HVAC systems

  • OLED display gives clear local temperature reading
  • BACnet integration allows direct network connection
  • 1k ohm Pt 385 RTD output ensures accurate measurement
  • UL 916 listing confirms energy management compliance
  • Complete mounting kit simplifies commercial installation

Purpose and audience

This Siemens QAA2212.FWSN is a commercial room temperature sensor with an OLED display and BACnet communication. It is intended for building-automation installers and facility managers who need local temperature readout and network integration in a single device.

Pre-installation checks

Verify that the control system supports BACnet over the available wiring and that screw-terminal connections match the existing cable plan. Confirm the 1k ohm Pt 385 RTD output is compatible with the controller inputs and that the RJ11 ports align with any auxiliary sensors. Ensure the supplied anchors, gaskets, screws and trim rings suit the mounting surface.

Sustained operation

The sensor provides continuous temperature measurement and display without active cooling, so its readings remain stable during extended occupancy cycles. UL 916 listing confirms compliance with energy-management equipment standards for long-term commercial use. The OLED display maintains visibility in varying ambient light without drift.

How it compares

Measured against everything we stock in Heating & Cooling Controllers, at today’s prices. Recalculated every night.

Price $89.99
Pricier than about 66% of the 1,762 comparable items (median $45.99).

Specifications

Product
Brand nameSiemens

Questions about this item

Does the sensor ship with mounting anchors, gaskets, screws and trim rings, or must any of those be purchased separately?

The package includes anchors, matching gaskets, screws and trim rings so no additional mounting hardware is required.

What output signal does the 1k ohm Pt 385 RTD provide for the BACnet system?

The 1k ohm Pt 385 RTD output delivers a standard platinum resistance signal that the BACnet controller reads directly for temperature measurement.

How does the UL 916 listing affect installation in a commercial building?

UL 916 Energy Management Equipment listing means the sensor meets the safety standard required for commercial HVAC control panels.

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