GAS DETECTION SENSORS · CITY TECHNOLOGY CHANNEL PARTNER
Gas sensors.
The sensor is the heart of any gas detection system. McNeill supplies City Technology, Sensoric and Envitec sensors for portable and fixed detectors, emissions and analyzers. Find your sensor family, then request a quote.
- Sensors
- 300+
- Gases detected
- 28
- Product ranges
- 10
- Sensing technologies
- 4
Gas Sensors

4 Series gas sensor
The go-to format for portable gas detectors. Covers oxygen, toxic gases, carbon dioxide and hydrocarbons, plus certified pellistors for combustible gas.
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5 Series gas sensor
Premium sensors built for the harsh conditions inside flue gas analyzers and combustion efficiency monitors.
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7 Series gas sensor
General-purpose oxygen and toxic gas sensing for portable or fixed detectors and medical gas equipment.
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3 Series gas sensor
City Technology’s original sensor range, with a wide choice of sensors and optional 4-20mA or mV transmitter boards. The 7 Series is its natural replacement.
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Sensoric toxic gas sensors
Toxic gas sensors known for strong performance on exotic gases. Supplied in a compact mini housing, or with adaptors to fit 4 and 7 Series formats.
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OOMLF (Envitec) lead-free medical O₂ sensor
The lead-free version of the Envitec medical oxygen sensor. CE marked under the European MDD, meets ISO 80601-2-55 and is RoHS compliant.
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OOM (Envitec) medical O₂ sensor
Oxygen sensors for medical devices, CE marked under the European MDD and meeting ISO 80601-2-55. Built to EN ISO 13485 for accurate, dependable response.
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OOI (Envitec) industrial O₂ sensor
Oxygen sensors for industrial gas analyzers, with accurate, dependable response and strong selectivity against carbon dioxide. RoHS compliant.
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OOA (Envitec) automotive O₂ sensor
Oxygen sensors for automotive emissions testing. PTB-A 18.10 approved, meets BAR 97 requirements and is RoHS compliant.
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Automotive & emissions
Oxygen and NOx sensors that help engines run cleaner and more efficiently, and keep vehicles within emissions standards.
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Metal Can oxygen series
Accurate oxygen detection in a rugged metal body, made for industrial safety and demanding environments.
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Tell us what you are detecting.
Send the gas, range and part number if you have it. No part number? Give us your detector make and model and we will find the match.
Calibrating the detector, too?
Pair your sensors with NIST-traceable calibration gas for bump tests and span checks.
