We ship worldwide — Singapore, Australia, Malaysia, Indonesia, Philippines, India, Middle East & more

Siemens Temperature Sensor: Wall Mount, Conduit Box, 55°F to 96°F, Plastic, Single Measurement - Room Temperature Sensors
SiemensRoom Temperature Sensors

Siemens Temperature Sensor: Wall Mount, Conduit Box, 55°F to 96°F, Plastic, Single Measurement

The SIEMENS QAA2230.EWSN is a wall-mount room temperature sensor with a plastic conduit-box housing and no display. It offers a temperature accuracy of ±0.40°F and a measurement range of 55°F to 96°F. This hardwired…

SKU 3G-OTH-69502

Also listed as: QAA2230EWSN · QAA2230 EWSN · QAA2230-EWSN

Brand
Siemens
Item
Temperature Sensor: Wall Mount, Conduit Box, 55°F to 96°F, Plastic, Single Measurement
Category
Room Temperature Sensors
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support

Delivery
Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

Siemens
Manufacturer Part Number
QAA2230.EWSN
Type
Conduit Box, 55°F to 96°F, Plastic, Single Measurement, Plastic
Display
No Display
Housing
Plastic
Includes
Screws
Housing Type
Conduit Box
Product Type
Room Temperature Sensor
Mounting Location
Wall Mount
Temperature Accuracy
±0.40°F
Electrical Connection Type
Hardwired
Compatible Building Automation Protocols
Modbus
For Use With Building Automation Systems
Building Automation System Compatible

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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

Product Description

The SIEMENS QAA2230.EWSN is a wall-mount room temperature sensor with a plastic conduit-box housing and no display. It offers a temperature accuracy of ±0.40°F and a measurement range of 55°F to 96°F. This hardwired sensor communicates via Modbus protocol and is compatible with building automation systems. It includes screws for installation.

Frequently Asked Questions

What is the Siemens QAA2230.EWSN room temperature sensor used for?

The Siemens QAA2230.EWSN is a wall-mount room temperature sensor used in building automation systems to measure ambient temperature. It communicates via Modbus protocol, making it suitable for HVAC control, energy management, and facility monitoring in commercial or industrial buildings.

What are the specifications of the Siemens QAA2230.EWSN temperature sensor?

The Siemens QAA2230.EWSN is a hardwired, wall-mount room temperature sensor with a plastic conduit-box housing and no display. It has a measurement range of 55°F to 96°F, accuracy of ±0.40°F, and communicates via Modbus protocol. It includes screws for installation and is compatible with building automation systems.

Where to buy the Siemens QAA2230.EWSN temperature sensor worldwide?

You can source the Siemens QAA2230.EWSN room temperature sensor through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time.

How to install the Siemens QAA2230.EWSN wall-mount temperature sensor?

Mount the Siemens QAA2230.EWSN on a wall using the included screws, ensuring the conduit box is properly sealed. Connect the hardwired electrical connections per the Modbus protocol specifications. Avoid placing the sensor near heat sources or drafts to ensure accurate readings of 55°F to 96°F.

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

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.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

Compatible alternatives & equivalents

Cross-referenced by specification & description
Temperature Sensor: Wall Mount, Conduit Box, 32°F to 122°F, Plastic, Single Measurement, Plastic (MPN QAA2235.EWSN)
Siemens
Temperature Sensor: Wall Mount, Conduit Box, 32°F to 122°F, Plastic, Single Measurement, Plastic (MPN QAA2235.EWSN)
Temperature Sensor: Wall Mount, Conduit Box, 32°F to 122°F, Plastic, Single Measurement, Plastic (MPN QAA2212.EWSN)
Siemens
Temperature Sensor: Wall Mount, Conduit Box, 32°F to 122°F, Plastic, Single Measurement, Plastic (MPN QAA2212.EWSN)
Temperature Sensor: Wall Mount, Conduit Box, Digital, 32°F to 122°F, 0 to 10V DC/4 to 20 mA, Plastic (MPN QAA22SS.FWSN)
Siemens
Temperature Sensor: Wall Mount, Conduit Box, Digital, 32°F to 122°F, 0 to 10V DC/4 to 20 mA, Plastic (MPN QAA22SS.FWSN)
Temperature Sensor: Wall Mount, Conduit Box, 32°F to 122°F, 0 to 10V DC/4 to 20 mA, Plastic, Plastic (MPN QAA22SS.EWSN)
Siemens
Temperature Sensor: Wall Mount, Conduit Box, 32°F to 122°F, 0 to 10V DC/4 to 20 mA, Plastic, Plastic (MPN QAA22SS.EWSN)
Temperature and Humidity Sensor: Wall Mount, 32°F to 131°F, Polycarbonate, Single Measurement (MPN QFA3212.EWSN)
Siemens
Temperature and Humidity Sensor: Wall Mount, 32°F to 131°F, Polycarbonate, Single Measurement (MPN QFA3212.EWSN)

More from Siemens

View all Siemens parts
Temperature Sensor: Wall Mount, Conduit Box, Digital, 32°F to 122°F, Integrated Siemens Controller (MPN QAA2280.FWSC)
Siemens
Temperature Sensor: Wall Mount, Conduit Box, Digital, 32°F to 122°F, Integrated Siemens Controller (MPN QAA2280.FWSC)
Siemens
Siemens
Temperature Sensor: Wall Mount, Flush Mount, 32°F to 122°F, Plastic, Single Measurement, Plastic (MPN 536-784A)
Temperature Sensor: Wall Mount, Conduit Box, Digital, 32°F to 122°F, Plastic, Single Measurement (MPN QAA2212.FWSN)
Siemens
Temperature Sensor: Wall Mount, Conduit Box, Digital, 32°F to 122°F, Plastic, Single Measurement (MPN QAA2212.FWSN)
Temperature Sensor: Wall Mount, Conduit Box, Digital, 32°F to 122°F, Integrated Siemens Controller (MPN QAA2280.DWSC)
Siemens
Temperature Sensor: Wall Mount, Conduit Box, Digital, 32°F to 122°F, Integrated Siemens Controller (MPN QAA2280.DWSC)
Temperature Sensor: Wall Mount, Conduit Box, 32°F to 122°F, Integrated Siemens Controller, Plastic (MPN QAA2280.EWSC)
Siemens
Temperature Sensor: Wall Mount, Conduit Box, 32°F to 122°F, Integrated Siemens Controller, Plastic (MPN QAA2280.EWSC)
Temperature Sensor: Wall Mount, Conduit Box, Digital, 32°F to 122°F, Plastic, Single Measurement (MPN QAA2230.FWSN)
Siemens
Temperature Sensor: Wall Mount, Conduit Box, Digital, 32°F to 122°F, Plastic, Single Measurement (MPN QAA2230.FWSN)
Temperature Sensor: Wall Mount, Conduit Box, 32°F to 122°F, Plastic, Single Measurement, Plastic (MPN QAA2220.EWSN)
Siemens
Temperature Sensor: Wall Mount, Conduit Box, 32°F to 122°F, Plastic, Single Measurement, Plastic (MPN QAA2220.EWSN)
Siemens
Siemens
Temperature Sensor: Wall Mount, Flush Mount, 32°F to 122°F, Plastic, Single Measurement, Plastic (MPN 536-994A)