Siemens Room Sensor
- RS Stock No.:
- 287-8737
- Mfr. Part No.:
- QFA3171 / BPZ:QFA3171
- Brand:
- Siemens
Subtotal (1 unit)*
£355.70
(exc. VAT)
£426.84
(inc. VAT)
FREE delivery for orders over £50.00
In Stock
- 8 unit(s) ready to ship
- Plus 8 unit(s) ready to ship from another location
- Plus 999,999,991 unit(s) shipping from 13 November 2025
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Units | Per unit |
|---|---|
| 1 + | £355.70 |
*price indicative
- RS Stock No.:
- 287-8737
- Mfr. Part No.:
- QFA3171 / BPZ:QFA3171
- 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 | |
| Device Type | Room Sensor | |
| Mounting Type | Wall Mount | |
| Height | 144mm | |
| Length | 80mm | |
Select all | ||
|---|---|---|
Brand Siemens | ||
Device Type Room Sensor | ||
Mounting Type Wall Mount | ||
Height 144mm | ||
Length 80mm | ||
RoHS Status: Not Applicable
- COO (Country of Origin):
- CN
Siemens Sensor, 144mm Height, 80mm Length - QFA3171
This sensor is a wall-mounted temperature and humidity measurement device designed for precise environmental monitoring in a variety of settings. With a robust construction featuring a housing that meets the IP65 rating, it ensures reliability even in harsh conditions. The dimensions of the sensor are 144mm in height, 80mm in length, and 80mm in width, providing a compact yet efficient solution for HVAC applications.
Features & Benefits
• Detects temperature between -40°C and +70°C for diverse environments
• Provides accurate relative humidity readings across 0 to 100%
• Outputs signals as DC 0 to 10V or 4 to 20mA for flexibility
• Features screw terminal connections for easy installation
• Equipped with an optional LCD display for real-time measurement
• Complies with IP65 standards for durability against water and dust
• Provides accurate relative humidity readings across 0 to 100%
• Outputs signals as DC 0 to 10V or 4 to 20mA for flexibility
• Features screw terminal connections for easy installation
• Equipped with an optional LCD display for real-time measurement
• Complies with IP65 standards for durability against water and dust
Applications
• Utilised in laboratories for essential climate control functions
• Ideal for hospitals needing controlled humidity and temperature conditions
• Effective in indoor swimming pools to maintain optimal air quality
• Suitable for computer and electronics facilities requiring accurate humidity monitoring
• Utilised in greenhouses for optimal plant growing conditions
• Ideal for hospitals needing controlled humidity and temperature conditions
• Effective in indoor swimming pools to maintain optimal air quality
• Suitable for computer and electronics facilities requiring accurate humidity monitoring
• Utilised in greenhouses for optimal plant growing conditions
What is the significance of the IP65 rating in this sensor?
The IP65 rating indicates that the sensor is protected against dust and low-pressure water jets, allowing it to function reliably in challenging environments, including outdoor applications.
How do the output signals support integration with other systems?
The sensor's dual output options of DC 0...10V and 4...20mA enable seamless integration with existing building management systems and HVAC controls for enhanced functionality.
What kind of installations are recommended for optimal performance?
For best performance, it should be mounted indoors at about 1.5m from the ground, avoiding direct sunlight, heat sources, and areas with poor air circulation.
How does the measurement accuracy change with temperature variations?
The measuring accuracy is affected by temperature
at 23°C, humidity accuracy is ±2% r.h., and the temperature sensor has an accuracy 3 K to ±0.8 K depending on the specific type used.
What ease of installation features does this sensor offer?
This sensor features screw terminal connections, and its compact design allows for straightforward wall mounting, making installation quick and efficient.