The Siemens QFM2160 duct sensor is designed to measure both relative humidity and temperature in air ducts for ventilation and air conditioning systems. It offers accurate readings with active signal outputs of DC 0–5 V, DC 0–10 V, or 4–20 mA for seamless integration into building automation systems. The sensor operates within a temperature range of -40°C to +70°C and a humidity range of 0–100%, providing reliable data for controlling and monitoring indoor air conditions. It is ideal for applications such as controlling supply and extract air, shifting the dew point, and connecting to a building automation system.

Key Features:

• Temperature range: -40°C to +70°C
• Humidity range: 0–100%
• Signal output: DC 0–5 V, DC 0–10 V, or 4–20 mA
• Accurate humidity measurement: ±3% r.h. within the comfort range
• IP54 protection rating

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