What should I look for when selecting a detector? 

• Target Gas and Detection Range: Different sensors are calibrated for specific gases. Natural gas detectors monitor methane, while refrigerant detectors are tuned to halocarbon refrigerants. Multi-gas sensors can monitor multiple threats simultaneously. Match the sensor to the gas you need and confirm the detection range aligns with your application, location, and applicable requirements.
• Environmental Conditions and Durability: Choose sensors rated for the appropriate environmental conditions. Installing sensors in mechanical rooms, parking garages, or industrial spaces subjects them to temperature extremes, humidity, dust, and vibration. 
• Integration With Building Systems: Gas sensors typically output analog signals (4-20 mA or 0-10 VDC) or provide digital communication via protocols like BACnet or Modbus. Integration capability determines how the sensor communicates with your BAS, ventilation controls, or alarm panels. Proper integration helps ensure timely ventilation response, system shutdowns, or alerts when gas levels exceed safe thresholds. Consider whether you need single-level or multilevel alarms, local notification, or integration with building-wide life safety systems. 
• Calibration and Ongoing Maintenance: Gas detectors are life-safety devices, and most require periodic calibration and bump testing to confirm they still respond correctly, not just a visual inspection. Sensor technology affects the schedule: catalytic and electrochemical sensors typically need more frequent attention than infrared sensors. Build calibration intervals and sensor replacement (electrochemical cells expire even if never triggered) into your maintenance plan, and follow the manufacturer's specified schedule rather than a generic interval. 

What is the difference between a natural gas detector and a refrigerant leak detector? 
Natural gas detectors are calibrated to detect methane and other combustible gases. Refrigerant leak detectors are tuned to halocarbon refrigerants, such as R-410A. Each sensor uses detection technology optimized for its target gas. Using the wrong sensor can result in missed leaks or false alarms. 

Can gas sensors improve energy efficiency? 
Yes. CO2 sensors enable demand-controlled ventilation, which adjusts outdoor air intake based on actual occupancy rather than fixed schedules, which can reduce heating and cooling loads while maintaining air quality, potentially cutting energy costs. 

Do your gas sensors work with existing building automation systems? 
Many gas sensors integrate with existing BAS platforms via standard analog outputs or open protocols like BACnet. Compatibility depends on your current system architecture. 

Get Expert Help with Gas Detection Systems 
Building Controls & Solutions helps contractors, integrators, and facility teams find the right gas and specialty sensors for safety-critical applications and code compliance projects. Contact our team online for sensor selection guidance, code-conscious product support, or application consulting. You can also visit one of our branches for product guidance and technical assistance.