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Siemens QAA2212.FWSN Room Temperature Sensor - Room Temperature Sensors
SiemensRoom Temperature Sensors

Siemens QAA2212.FWSN Room Temperature Sensor

The Siemens QAA2212.FWSN is a wall-mount room temperature sensor with a digital display and plastic conduit-box housing. It offers a temperature accuracy of ±0.54°F and is hardwired for MP-Bus building automation…

SKU 3G-OTH-69544

Also listed as: QAA2212FWSN · QAA2212 FWSN · QAA2212-FWSN

Brand
Siemens
Item
QAA2212.FWSN Room Temperature Sensor
Part Number
QAA2212.FWSN
Category
Room Temperature Sensors
Available to Order
Also known as:QAA2212.FWSNSiemens
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Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
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Technical Specifications

Siemens
Manufacturer Part Number
QAA2212.FWSN
Type
Conduit Box, Digital, 32°F to 122°F, Plastic, Single Measurement
Display
Digital Display
Housing
Plastic
Includes
Screws
Housing Type
Conduit Box
Product Type
Room Temperature Sensor
Mounting Location
Wall Mount
Temperature Accuracy
±0.54°F
Electrical Connection Type
Hardwired
Compatible Building Automation Protocols
MP-Bus
For Use With Building Automation Systems
Building Automation System Compatible

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Siemens Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The Siemens QAA2212.FWSN is a wall-mount room temperature sensor with a digital display and plastic conduit-box housing. It offers a temperature accuracy of ±0.54°F and is hardwired for MP-Bus building automation protocols. This single-measurement sensor includes screws for installation and is compatible with building automation systems.

Frequently Asked Questions

What is the Siemens QAA2212.FWSN room temperature sensor used for?

The Siemens QAA2212.FWSN is a wall-mount room temperature sensor with a digital display, designed for building automation systems. It provides accurate single-measurement temperature readings via MP-Bus protocol, enabling HVAC control and energy management in commercial or industrial facilities.

What are the specifications of the Siemens QAA2212.FWSN temperature sensor?

The Siemens QAA2212.FWSN is a hardwired, wall-mount sensor with a plastic conduit-box housing and digital display. It measures temperatures from 32°F to 122°F with ±0.54°F accuracy, uses MP-Bus protocol, and includes screws for installation. It is compatible with building automation systems.

Where to buy the Siemens QAA2212.FWSN temperature sensor worldwide?

3G Electric supplies the Siemens QAA2212.FWSN room temperature sensor to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery for international orders. Contact us to source this sensor for your building automation project.

How to install the Siemens QAA2212.FWSN wall-mount temperature sensor?

Mount the Siemens QAA2212.FWSN sensor on a wall using the included screws, ensuring it is away from heat sources or drafts. Hardwire the electrical connection per local codes and configure it for MP-Bus protocol. Follow Siemens' generic installation guidelines for optimal accuracy and performance.

Used in

Common applications for Siemens
District cooling plants — LME73 + RWF55 for condenser-water modulation
Inflight catering and food-processing steam boilers — LMG22 with SQN90 air-fuel cross-damper
Hospital steam-plant redundancy — LME41 with QRA2 UV flame detection for dual-fuel boilers
Semiconductor fab process heat — LME23 and SKP55 gas valves on hot-oil heater skids
Container-terminal reefer-deck heating — LMG22 retrofit onto legacy burner racks
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Siemens Products

3G Electric supplies Siemens room temperature sensors. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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