Siemens QFA20 Series Temperature & Humidity Sensor, Wall, ±3 %RH Corrugated Cardboard
- RS Stock No.:
- 639-234
- Mfr. Part No.:
- QFA2071 / S55720-S115
- Brand:
- Siemens
Subtotal (1 unit)*
£235.53
(exc. VAT)
£282.64
(inc. VAT)
FREE delivery for orders over £60.00
Stocked by manufacturer
- Ready to ship from 15 June 2026
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Units | Per unit |
|---|---|
| 1 + | £235.53 |
*price indicative
- RS Stock No.:
- 639-234
- Mfr. Part No.:
- QFA2071 / S55720-S115
- Brand:
- Siemens
Specifications
Technical Reference
Legislation and Compliance
Product Details
Find similar products by selecting one or more attributes.
Select all | Attribute | Value |
|---|---|---|
| Brand | Siemens | |
| Product Type | Temperature & Humidity Sensor | |
| Sub Type | Room Sensor | |
| Accuracy | ±3 %RH | |
| Mount Type | Wall | |
| Minimum Operating Temperature | 0°C | |
| Maximum Operating Temperature | 50°C | |
| Minimum Supply Voltage | 13.5V | |
| Maximum Supply Voltage | 35V | |
| Package Type | Corrugated Cardboard | |
| Height | 100mm | |
| Length | 90mm | |
| Series | QFA20 | |
| Standards/Approvals | IEC 60721-3-3, CE, RCM, EAC, IEC 60721-3-2, UL 873 | |
| Automotive Standard | No | |
| Select all | ||
|---|---|---|
Brand Siemens | ||
Product Type Temperature & Humidity Sensor | ||
Sub Type Room Sensor | ||
Accuracy ±3 %RH | ||
Mount Type Wall | ||
Minimum Operating Temperature 0°C | ||
Maximum Operating Temperature 50°C | ||
Minimum Supply Voltage 13.5V | ||
Maximum Supply Voltage 35V | ||
Package Type Corrugated Cardboard | ||
Height 100mm | ||
Length 90mm | ||
Series QFA20 | ||
Standards/Approvals IEC 60721-3-3, CE, RCM, EAC, IEC 60721-3-2, UL 873 | ||
Automotive Standard No | ||
RoHS Status: Exempt
- COO (Country of Origin):
- CN
The Siemens room sensor designed to measure both humidity and temperature AT DC 4 to 20 mA for precise environmental control. It offers reliable, real-time data for integration into building automation systems, enabling efficient climate regulation. This sensor is well-suited for various applications, including commercial, industrial, and residential environments, where accurate environmental data is crucial for energy efficiency. Its dual output ensures compatibility with a wide range of control and monitoring systems.
Easy to integrate with HVAC systems for enhanced automation
Robust design ensures durability and long lasting performance
RoHS compliant
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