Air Quality & Gas Detection

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 510 items
Filters
Found 510 items
Manufacturer
ACI (403)
Dwyer Instruments (107)
Component
Air Flow Switch (3)
Air Meter (1)
Air Quality (6)
Air Velocity Meter (3)
Carbon Dioxide Transmitter (22)
Carbon Monoxide Transmitter (20)
Communicating Carbon Dioxide Detector (4)
Communicating Carbon Dioxide Sensor (4)
Fume Hood Monitor (1)
Gas (385)
(Instrument-Sensor) Type
134A Refrigerant (1)
452A Refrigerant (1)
Acetone (4)
Acetylene (3)
Alcohol (1)
Ammonia (9)
Arsine (1)
Benzene (2)
Bromic Acid (1)
Butane (6)
(Instrument-Sensor) Span
0 - 1 PPM (5)
0 - 2 PPM (4)
0 - 5 PPM (5)
0 - 5% Volume (2)
0 - 6 PPM (2)
0 - 10 PPM (4)
0 - 20 PPM (3)
0 - 20% Volume (2)
0 - 25 PPM (1)
0 - 25% Volume (6)
(Instrument-Sensor) Output Signal Range
0 - 5 VDC (1)
0-10 VDC (12)
4 - 20 mAmp (11)
(Instrument-Sensor) Mounting
Duct (14)
(Instrument-Sensor) NEMA Protection
NEMA 1 (1)
NEMA 4 (7)
NEMA 4X (41)
(Instrument-Sensor) IP Protection
IP20 (12)
IP50 (1)
IP54 (10)
IP64 (24)
IP65 (21)
IP66 (19)
(Instrument-Sensor) Indication
Buzzer (4)
LCD (17)
(Instrument-Sensor) Measurement Accuracy
1°C (4)
2.5% (6)
2% (28)
3% (53)
5% (20)
10 Μg/M3 (14)
10% (9)
(Instrument-Sensor) Supply Voltage
6-35 VDC (14)
10-30 VAC (8)
10-35 VDC (12)
10-36 VDC (12)
10-42 VDC (8)
12-28 VDC (7)
15-29 VAC (12)
15-35 VDC (12)
16-28 VAC (14)
16-35 VDC (21)
(Instrument-Sensor) Temperature Range
-4 - 104°F/-20 - 40°C (6)
-4 - 122°F/-20 - 50°C (18)
32 - 122°F/0 - 50°C (29)
Ambient: -4 - 122°F/-20 - 50°C (6)
Ambient: -40 - 145°F/-40 - 63°C (7)
Operating: 32 - 122°F/0 - 50°C (14)
Process: -40 - 248°F/-40 - 120°C (7)
Storage: -22 - 158°F/-30 - 70°C (14)
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ACI 139831 Q5-GENL-100L-O-X-ETHANOL Ethanol Gas
Free U.S Ground shipping
$1045.75
$871.46
Normally In Stock
ACI 107556 CO-R-RB-D Carbon Monoxide Room Gas
Free U.S Ground shipping
$624.35
$520.29
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ACI 107557 CO-D-RB-D Carbon Monoxide Duct Gas
Free U.S Ground shipping
$737.27
$614.39
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ACI 102955 SM-501-P
Free U.S Ground shipping
$298.08
$248.40
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ACI 105792 SL-2000-P
Free U.S Ground shipping
$276.22
$230.18
Normally In Stock
ACI 128901 85930-006-000 Gas
Free U.S Ground shipping
$120.30
$100.25
Normally In Stock
ACI 130812 85930-007-000 Gas
Free U.S Ground shipping
$62.74
$52.28
Normally In Stock
ACI 134488 85930-018-001 Carbon Monoxide Gas
Free U.S Ground shipping
$263.47
$219.56
Normally In Stock
ACI 136971 85930-016-000 Oxygen Gas
Free U.S Ground shipping
$510.70
$425.58
Normally In Stock
ACI 141036 Q5C-CO-250P-O-X Carbon Monoxide Gas
Free U.S Ground shipping
$811.80
$676.50
Normally In Stock
ACI 125955 CTS-M5130X-Q0R0000 Oxygen Room Gas
Free U.S Ground shipping
$931.36
$776.13
Normally In Stock
ACI 140654 B5C-CO-250P-O-X Carbon Monoxide Gas
Free U.S Ground shipping
$811.80
$676.50
Normally In Stock
ACI 143152 QTS-17191X-S000000-ACETONE Acetone Gas
Free U.S Ground shipping
$1237.63
$1031.36
Normally In Stock
ACI 144907 Q8-BUTAN-100L-O-X Butane Gas
Free U.S Ground shipping
$2020.25
$1683.54
Normally In Stock
ACI 146369 Q5-GENL-100L-O-X-PENTANE Pentane Gas
Free U.S Ground shipping
$952.76
$793.97
Normally In Stock
Dwyer PMI-10DC-N-N Particulate Matter Transmitter
Free U.S Ground shipping
$419.77
$349.81
Normally In Stock
ACI 148565 QIRF-448AX-0 Refrigerant,R448A NEMA 4X Gas
Free U.S Ground shipping
$2645.68
$2204.73
Normally In Stock
Dwyer CDWP-02W-C5 Carbon Dioxide Transmitter
Free U.S Ground shipping
$614.74
$512.28
Normally In Stock
Dwyer GSTA-C Carbon Monoxide Transmitter
Free U.S Ground shipping
$285.73
$238.11
Normally In Stock
ACI 152533 R123 Refrigerant Sensor
Free U.S Ground shipping
$2834.66
$2362.22
Normally In Stock
Dwyer PMI-2.5DA-N-N Particulate transmitter
Free U.S Ground shipping
$395.71
$329.76
Normally In Stock
Dwyer AAFS Paddle Switch
Free U.S Ground shipping
$113.89
$94.91
Normally In Stock
ACI 147639 PM-R-LCD Particulates Room Air Quality
Free U.S Ground shipping
$448.70
$373.92
Normally In Stock
ACI 147640 PM-D Particulates Duct Air Quality
Free U.S Ground shipping
$443.54
$369.62
Normally In Stock
ACI 147795 Q8-O3-1P-0-X Ozone Gas
Free U.S Ground shipping
$3057.59
$2547.99
Normally In Stock
ACI 102147 CO-D Carbon Monoxide Duct Gas
Free U.S Ground shipping
$670.85
$559.04
Normally In Stock
ACI 102151 CO-R Carbon Monoxide Room Gas
Free U.S Ground shipping
$510.70
$425.58
Normally In Stock
ACI 102593 NO2-R Carbon Monoxide,Nitrogen Dioxide Room Gas
Free U.S Ground shipping
$727.67
$606.39
Normally In Stock
Dwyer AVFS-1 Thermo air flow switch
Free U.S Ground shipping
$521.05
$434.21
Normally In Stock
Dwyer AVFS-2 Thermo air flow switch
Free U.S Ground shipping
$521.05
$434.21
Normally In Stock
Dwyer CDSN Carbon Dioxide/Temperature transmitter
Free U.S Ground shipping
$245.46
$204.55
Normally In Stock
Dwyer CMS300 Carbon monoxide transmitter
Free U.S Ground shipping
$246.98
$205.82
Normally In Stock
Dwyer CMS300-FC Carbon monoxide transmitter
Free U.S Ground shipping
$297.16
$247.63
Normally In Stock
Dwyer AQH-20 Air Meter
Free U.S Ground shipping
$484.70
$403.92
Normally In Stock
Dwyer PMI-2.5DA-N-LCD Particulate transmitter
Free U.S Ground shipping
$422.72
$352.27
Normally In Stock
Dwyer PMI-2.5DC-N-LCD Particulate transmitter
Free U.S Ground shipping
$448.91
$374.09
Normally In Stock
Dwyer PMI-2.5DC-N-N Particulate transmitter
Free U.S Ground shipping
$383.03
$319.19
Normally In Stock
Dwyer PMI-2.5WA-N-B Particulate transmitter
Free U.S Ground shipping
$422.72
$352.27
Normally In Stock
Dwyer PMI-2.5WA-N-LCD Particulate transmitter
Free U.S Ground shipping
$395.71
$329.76
Normally In Stock
Dwyer PMI-2.5WA-N-N Particulate transmitter
Free U.S Ground shipping
$368.34
$306.95
Normally In Stock
Dwyer PMI-2.5WA-RLY-B Particulate transmitter
Free U.S Ground shipping
$439.90
$366.58
Normally In Stock
Dwyer PMI-2.5WC-N-B Particulate transmitter
Free U.S Ground shipping
$448.91
$374.09
Normally In Stock
Dwyer PMI-2.5WC-N-LCD Particulate transmitter
Free U.S Ground shipping
$378.19
$315.16
Normally In Stock
Dwyer PMI-2.5WC-N-N Particulate transmitter
Free U.S Ground shipping
$398.46
$332.05
Normally In Stock
Dwyer PMI-2.5WC-RLY-B Particulate transmitter
Free U.S Ground shipping
$468.42
$390.35
Normally In Stock
Dwyer PMI-2.5WC-RLY-LCD Particulate transmitter
Free U.S Ground shipping
$439.90
$366.58
Normally In Stock
Dwyer PMI-2.5WC-RLY-N Particulate transmitter
Free U.S Ground shipping
$413.74
$344.78
Normally In Stock
Dwyer SL-2000-P Conventional duct smoke detector
Free U.S Ground shipping
$402.04
$335.03

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.