Sensors & Transmitters for HVAC & Building Automation
Precision temperature, pressure, flow, humidity and CO₂ sensing designed for smart building and industrial automation applications.Sensors & Transmitters – Key Models
Temperature Sensors & Pt100 Sensors
Learn More →
Occupancy & CO₂ Sensors
Learn More →
Humidity Sensors
Learn More →
Pressure & Flow Sensors
Learn More →
Duct Transmitters
Learn More →
Room Sensors & Smart Building Automation
Learn More →
Sensors & Transmitters
Sensors and transmitters are essential for reliable measurement and control in HVAC systems and building automation.
These devices monitor environmental conditions such as temperature, humidity, air quality, pressure, flow, occupancy and CO₂, providing real-time data for efficient operations, comfort, and compliance. With seamless integration into modern BMS and BAS systems, smart building metering and control becomes highly accurate and automated.
Precision & Reliability
High-accuracy Pt100 temperature sensors (±0.6 K) deliver long-term stability and maintenance-free reliability across HVAC and industrial automation environments.
Variety of Sensor Types
Includes temperature (Pt100), duct, room, pressure, flow, CO₂, VOC, humidity, and occupancy sensors—supporting volume, velocity, and air quality monitoring across HVAC and BMS.
Seamless Integration with BMS
Sensors integrate seamlessly with BACnet, Modbus, PL-Link, enabling smart building solutions and centralized HVAC sensor control within any building automation system.
Enhanced Energy & Comfort Management
Enable demand-controlled ventilation with CO₂ and occupancy data, while improving HVAC efficiency through humidity control, temperature balancing, and accurate flow measurement.
Siemens Temperature Sensors & Pt100 Sensors
Includes Qt/Ni1000, QAA room temperature sensors, FT‑TP immersion sensors, and strap‑on models like QAD2010.
Key Points:
Pt100 RTDs for precision and repeatability; immersion sensors rated –70 °C to 260 °C with fast response
Room and duct versions for ambient and air-side measurement
Widely used in HVAC sensors for building automation and industrial automation sensors
Occupancy & CO₂ Sensors
Includes Siemens QPA2000 series room CO₂ sensors and occupancy-capable units.
Key Points:
Room CO₂ monitoring with optional VOC detection (QPA2002 series) for demand-control ventilation
Occupancy sensors detect presence for energy-saving HVAC regulation
Ideal for sensors for BMS and smart building solutions
Humidity Sensors
Includes QFM series relative humidity and temperature transmitters.
Key Points:
±2% RH accuracy, with combined temperature and humidity outputs
Room and duct mounting options
Supports indoor air quality control and HVAC sensors for building automation
Pressure & Flow Sensors
Siemens QBM differential pressure sensors, QVE / QVM flow switches, and velocity indicators.
Key Points:
Pressure sensors for air and liquid, with ceramic Resistors for long-term stability
Flow sensors and switches for both HVAC fluids and compressed gases
Ideal for flow meters dashboards, pressure sensors in duct applications, and HVAC diagnostics
Duct Transmitters
Includes duct loops, flow velocity sensors, and air-quality sensors.
Key Points:
Duct sensors for temperature, humidity, pressure, and CO₂ monitoring integrated in supply / return air streams
Critical for duct sensors in HVAC systems and building automation networks
Room Sensors & Smart Building Automation
Siemens room sensors are designed for advanced building automation, offering accurate monitoring of temperature, humidity, air quality, CO₂, VOC levels, and occupancy.
Key Points:
Multi-function room sensors with display panels and 0–10 V, 4–20 mA or Modbus/IP connectivity
Supports HVAC metering solutions and smart building metering via demand ventilation control
Designed for occupant comfort, indoor air quality, and building performance optimization
Applications & Industries Served
Building automation & BMS installations in smart office, retail, and residential buildings
HVAC systems: temperature, humidity, flow & pressure sensing for system feedback and control
Industrial automation including process monitoring, lab environments, and cleanrooms
Indoor air quality control: demand-controlled ventilation based on CO₂, occupancy and humidity
Equip your building with trusted Siemens sensor technology
Contact us today to identify the ideal sensor and transmitter solution for your automation and BMS setup.