BMS - Field Level Devices and Components

Introduction to BMS Field Level Devices and Components

The BMS Field Level, also known as Building Management System Field Level, refers to the physical components and devices that enable data acquisition and control within a building automation system. This includes sensors, actuators, controllers, and other connected devices at the field level that allow for monitoring and control of various systems such as HVAC, lighting, security, and energy management. The BMS Field Level is responsible for collecting and transmitting data from these devices to the higher-level controls and software applications for analysis and optimization. It plays a critical role in ensuring the efficient and effective operation of a building's systems and optimizing energy usage.

Below is the list of devices and components used in a BMS Field Level can be reordered based on classification:


  • Air Quality Sensors (CO2)
  • Air Quality Sensors (VOCs)
  • Carbon Monoxide Detector
  • Duct Smoke Detector
  • Flow Sensors (for water and other fluids)
  • Occupancy Sensors
  • Power Meters
  • Pressure Sensor
  • Temp & RH HVAC Sensors
  • Water Quality Sensors


  • Damper Actuator
  • Valve Actuator
  • Zone Thermal Actuator

Switches and Controls

  • Differential Pressure Switch
  • Electrical Switches and Relays
  • Limit Switch
  • Lighting Control Devices (sensors, switches)


  • Fire Alarm Detectors
  • Motion Detectors
  • CCTV Cameras

Energy Management

  • BTU Meter

in MEP
BMS - Field Level Devices and Components
Administrator December 22, 2023
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Introduction to Air Quality Sensors (CO2)