Air Quality & Gas Detection

Industrial monitoring and control equipment including a gas detector transmitter, keypad access control panel, industrial control panel with display interface, and an environmental sensor enclosure used for safety monitoring, system control, and facility management.

RSP Supply carries a full line of air quality and gas detection equipment designed to ensure safe, healthy, and compliant environments. Air quality monitoring systems are essential for detecting and measuring airborne pollutants, including carbon dioxide (CO₂), carbon monoxide (CO), sulfur dioxide (SO₂), nitrogen dioxide (NO₂), and volatile organic compounds (VOCs). These systems play a critical role in both indoor and outdoor safety applications, alerting users to hazardous conditions before they become dangerous.

Air quality monitors use a range of sensing technologies to measure gas concentration, particulate matter, and environmental parameters like temperature and humidity. In industrial and commercial settings, this data helps optimize ventilation, filtration, and environmental control systems to improve air quality and reduce exposure risks. Carbon monoxide and carbon dioxide are among the most closely monitored gases. Carbon monoxide, in particular, is colorless and odorless, making detection equipment vital for preventing poisoning and ensuring compliance with safety standards. Non-dispersive infrared (NDIR) sensors are commonly used for CO₂ detection, relying on precise light absorption measurements to determine gas concentration.

Found 136 items
Normally In Stock
ACI 107556 CO-R-RB-D Carbon Monoxide Room Gas - CO-R-RB-D
Free U.S Ground shipping
$727.67
$606.39
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Dwyer AAFS Paddle Switch
Free U.S Ground shipping
$113.89
$94.91
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Dwyer PMI-10DC-N-N Particulate Matter Transmitter
Free U.S Ground shipping
$428.15
$356.79
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Dwyer CDWP-02W-C5 Carbon Dioxide Transmitter
Free U.S Ground shipping
$614.74
$512.28
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Dwyer GSTA-C Carbon Monoxide Transmitter
Free U.S Ground shipping
$285.73
$238.11
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Dwyer PMI-2.5DA-N-N Particulate transmitter
Free U.S Ground shipping
$395.71
$329.76
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Dwyer PMI-2.5DC-N-LCD Particulate transmitter
Free U.S Ground shipping
$448.91
$374.09
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Dwyer PMT2-36-A-U2 Particulate Transmitter
Free U.S Ground shipping
$3768.73
$3140.61
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Dwyer CDTA-2N000 Communicating Carbon Dioxide Detector
Free U.S Ground shipping
$481.06
$400.88
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Dwyer CDTA-2N000-LCD Communicating Carbon Dioxide Detector
Free U.S Ground shipping
$560.74
$467.28
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Dwyer CMT-DN Carbon Monoxide Transmitter
Free U.S Ground shipping
$1000.45
$833.71
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Dwyer CMT-DN-D Carbon Monoxide Transmitter
Free U.S Ground shipping
$1327.81
$1106.51
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Dwyer CMT200 Carbon Monoxide Transmitter
Free U.S Ground shipping
$204.34
$170.28
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Dwyer CMT200-FC Carbon Monoxide Transmitter
Free U.S Ground shipping
$254.20
$211.83
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Dwyer PMI-2.5WC-N-N Particulate transmitter
Free U.S Ground shipping
$398.46
$332.05
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Dwyer PMI-2.5WC-RLY-B Particulate transmitter
Free U.S Ground shipping
$468.42
$390.35
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Dwyer PMI-2.5WC-RLY-LCD Particulate transmitter
Free U.S Ground shipping
$439.90
$366.58
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Dwyer PMI-2.5WC-RLY-N Particulate transmitter
Free U.S Ground shipping
$413.74
$344.78
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Dwyer SL-2000-P Conventional duct smoke detector
Free U.S Ground shipping
$402.04
$335.03
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Dwyer CMT200-R Carbon Monoxide Transmitter
Free U.S Ground shipping
$212.23
$176.86
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Dwyer CMT200-R-FC Carbon Monoxide Transmitter
Free U.S Ground shipping
$260.21
$216.84
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ACI 152247 Carbon Dioxide Sensor, Room - A/CO2-R2-B
Free U.S Ground shipping
$304.80
$254.00
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ACI 152853 Carbon Dioxide Sensor, Room - A/CO2-R2S-AN-A16-G5
Free U.S Ground shipping
$315.86
$263.22
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ACI 152854 Smart Sensor, Ethyl Acetate - Q5-GENL-100L-O-X-ETHYL ACETATE
Free U.S Ground shipping
$1111.43
$926.19
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ACI 152790 R11 Refrigerant Sensor, 0-1000ppm - QIRF2-0R11-X
Free U.S Ground shipping
$3304.03
$2753.36
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ACI 152537 R407C Refrigerant Sensor, 0-1000ppm - QIRF2-407C-X
Free U.S Ground shipping
$3304.03
$2753.36
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ACI 152804 R454B Refrigerant Sensor, 0-1000ppm - QIRF2-454B-X
Free U.S Ground shipping
$3168.97
$2640.81
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Dwyer PMI-2.5WA-RLY-B Particulate transmitter
Free U.S Ground shipping
$439.90
$366.58
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Dwyer PMI-2.5WC-N-B Particulate transmitter
Free U.S Ground shipping
$448.91
$374.09
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Dwyer PMI-2.5WC-N-LCD Particulate transmitter
Free U.S Ground shipping
$422.72
$352.27
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Dwyer PMI-2.5DC-N-N Particulate transmitter
Free U.S Ground shipping
$428.15
$356.79
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Dwyer PMI-2.5WA-N-B Particulate transmitter
Free U.S Ground shipping
$422.72
$352.27
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Dwyer PMI-2.5WA-N-LCD Particulate transmitter
Free U.S Ground shipping
$395.71
$329.76
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Dwyer PMI-2.5WA-N-N Particulate transmitter
Free U.S Ground shipping
$368.34
$306.95
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Dwyer 670 Fume Hood Monitor
Free U.S Ground shipping
$1419.71
$1183.09
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Dwyer GSTA-C-D Carbon Monoxide Transmitter
Free U.S Ground shipping
$363.54
$302.95
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Dwyer GSTA-C-LCD Carbon Monoxide Transmitter
Free U.S Ground shipping
$363.54
$302.95
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Dwyer GSTA-C-LCD-FC Carbon Monoxide Transmitter
Free U.S Ground shipping
$411.35
$342.79

FAQs

Q: What causes poor indoor air quality?
Poor indoor air quality can result from limited ventilation, combustion sources, VOC emissions, radon, and particulate matter buildup from dust or smoke.

Q: What gases are commonly detected by air quality monitors?
Most air quality monitors detect gases such as carbon monoxide, carbon dioxide, nitrogen dioxide, sulfur dioxide, methane, and volatile organic compounds (VOCs).

Q: How do non-dispersive infrared (NDIR) gas sensors work?
NDIR sensors measure gas concentration by shining light through a sample and detecting how much is absorbed at specific wavelengths unique to each gas.

Q: Are air quality monitors used outdoors as well as indoors?
Yes, outdoor air quality monitors are used to track pollutants like ozone and sulfur dioxide, while indoor models focus on CO, CO₂, VOCs, and particulate matter.

Q: Why is continuous gas detection important?
Continuous gas detection provides early warning of dangerous leaks or poor air quality, preventing exposure to toxic gases and reducing fire or explosion risks.

Why Buy Air Quality and Gas Detection Systems from RSP Supply

RSP Supply provides reliable air quality and gas detection systems for industrial, commercial, and residential environments. Our sensors and monitors are selected for accuracy, durability, and ease of integration - helping you maintain safe, compliant, and efficient operations.