Hazardous Gas Detection Systems
Honeywell factory-certified design, installation, and calibration for commercial and industrial facilities across New England
Gas Detection
Honeywell Factory-Certified Gas Detection Specialists
O’Leary Temperature Controls designs, installs, and services Honeywell hazardous gas detection systems for parking garages, boiler rooms, chiller plants, and industrial facilities. Our technicians are factory-certified through Honeywell Analytics — the same training the manufacturer requires of its own service teams.
Already have a system from another manufacturer? We calibrate most major hazardous gas sensor brands, whether or not we installed them.
Gases We Monitor
We Install & Calibrate Sensors for Every Hazardous Gas
Carbon Monoxide (CO)
Parking garages, boiler rooms, loading docks
Nitrogen Dioxide (NO₂)
Diesel exhaust in garages and dock areas
Methane / Natural Gas (CH₄)
Boiler rooms and mechanical spaces
Propane (LP)
Commercial kitchens and generator rooms
Refrigerants
R-410A, R-134a and more — chiller and machine rooms
Hydrogen Sulfide (H₂S)
Wastewater facilities and pump stations
Carbon Dioxide (CO₂)
Breweries, labs, demand-control ventilation
Oxygen Depletion (O₂)
Confined spaces, labs, cryogenic storage
Ammonia (NH₃)
Refrigeration plants and ice rinks
Hydrogen (H₂)
Battery and UPS rooms
Chlorine (Cl₂)
Pools and water treatment
VOCs & Combustibles
Labs and industrial process areas
Our Specialty
We Install & Calibrate
Complete system design, installation, programming, and ongoing calibration of Honeywell hazardous gas detection.
Any Existing System
We Calibrate
We didn’t install it? No problem. We calibrate most major hazardous gas sensor brands.
Biannual Calibration Service Contracts
Gas sensors drift. Code officials and insurers want proof yours don’t. Our service contracts keep you covered:
- Scheduled calibration twice per year — we track the dates so you don’t have to
- Calibration certificates and documentation for code compliance
- Priority response for repairs and sensor replacement
Is Your Gas Detection System Due for Calibration?
Contact O’Leary Temperature Controls for a free consultation, site assessment, or calibration quote.