Siemens QFA2001 Room Humidity Sensor 4-20 mA (2-wire)

Product Description

Siemens QFA2001 is a room humidity sensor that provides a two-wire 4-20 mA output for building control systems. The sensor measures relative humidity across 0-100% with approximately ±5% accuracy and is housed in a plastic wall-mount enclosure. It is designed for HVAC and indoor environmental monitoring and produces a current loop signal compatible with building automation and process control equipment.

• Two-wire 4-20 mA current loop output for direct connection to building control systems
• Approximate ±5% humidity accuracy with 0-100% relative humidity measurement range
• Plastic wall/room mount enclosure; wide power input: 24 VAC or 13.5–35 VDC

Product Highlights

Two-wire 4-20 mA room humidity sensor, ±5% accuracy, wall-mount plastic housing

Product Information

Standard Information

• Brand: SIEMENS
• Manufacturer Part Number: QFA2001
• Country of Origin: China

Technical Specifications

• Brand: Siemens
• MPN: QFA2001
• Product Type: Room humidity sensor
• Output Signal: 4-20 mA
• Wiring: 2-wire
• Accuracy: ±5%
• Humidity Range: 0-100% RH
• Mounting Type: Wall mount
• Housing Material: Plastic
• Power Requirements: 24 VAC or 13.5-35 VDC
• Country of Origin: China
• Application: HVAC, building automation, indoor humidity monitoring