HVAC Controls & Sensors

Safety • Monitoring • Automation • System Control

Controls & Sensors for HVAC

The HVAC Controls & Sensors category includes the detection and control devices that monitor system conditions and regulate operation. These components provide essential data for safety protection, pressure management, temperature control and automated equipment response.

Here you’ll find temperature sensors, pressure transducers, defrost sensors, ambient sensors, coil sensors, airflow switches, contact sensors, safety cutouts, control modules and universal replacement sensors. These devices support A/C systems, heat pumps, refrigeration equipment, mini-splits and packaged units.

  • Temperature & thermistor sensors for coils, ambient and discharge lines.
  • Pressure transducers and switches for system safety and staging.
  • Airflow and differential pressure switches for fan and filter monitoring.
  • Defrost & freeze protection sensors for heat pumps and refrigeration.
  • Control boards & modules that interpret sensor data and command system operation.

When choosing HVAC controls and sensors, verify OEM compatibility, sensor type (NTC, PTC, thermistor), operating range, connection style, electrical rating and environmental durability. The correct sensor ensures accurate data reporting and reliable control responses.

Pro tip: If a system is short-cycling or entering fault mode, sensor failure is one of the most common causes. Always test resistance values and compare them to manufacturer charts before replacing major components.

HVAC sensors and control components for refrigeration and air conditioning

HVAC Controls & Sensors for Heating, Cooling & Refrigeration

HVAC controls and sensors including pressure transducers, temperature sensors, airflow switches, defrost sensors, freeze protection sensors, limit switches, control modules and universal replacements.

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