Siemens QFA21 Series Temperature & Humidity Sensor, Wall, ±3 %RH Corrugated Cardboard

View all Multi Function Sensors

Subtotal (1 unit)*

Kr. 3 113,28

(exc. VAT)

Kr. 3 891,60

(inc. VAT)

Add to Basket
Select or type quantity
Temporarily out of stock
  • Shipping from 23 March 2026
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Units
Per unit
1 +Kr. 3 113,28

*price indicative

RS Stock No.:
639-101
Mfr. Part No.:
QFM2150/MO / S55720-S467
Brand:
Siemens
Find similar products by selecting one or more attributes.
Select all

Brand

Siemens

Product Type

Temperature & Humidity Sensor

Sub Type

Room Sensor

Accuracy

±3 %RH

Mount Type

Wall

Maximum Operating Temperature

60°C

Minimum Operating Temperature

-15°C

Minimum Supply Voltage

13.5V

Maximum Supply Voltage

35V

Package Type

Corrugated Cardboard

RH Range

0 to 100 %

Standards/Approvals

CE, RoHS, UL 873, EN 60730-1, RCM

Length

80mm

Width

60 mm

Series

QFA21

Height

222mm

Automotive Standard

No

RoHS Status: Exempted

COO (Country of Origin):
CN
The Siemens Duct sensor designed to measure both humidity and temperature, offering reliable environmental monitoring for HVAC systems. Using the Modbus communication protocol, it ensures seamless integration into building automation systems, providing real-time data for efficient climate control. Ideal for industrial, commercial, and residential applications, this sensor helps optimize ventilation and air quality. Its robust and durable design ensures long-lasting, accurate performance in duct environments.

IP54 protection

CE and UKCA compliant

RoHS compliant

Related links