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Portable Gas Monitors & Accessories
Portable Gas Monitors

Portable Gas Monitors

Portable gas monitors are battery powered and detect various hazardous, toxic, and combustible gases in your industrial environment. When mobility and confined space is a concern, portable gas monitors can ensure worker safety. Typical applications include first responders, utilities, sewers, industrial plants, hazmat, oil and gas, environmental, chemicals, and many more. RS Hughes carries portable gas monitor accessories to keep your portable gas monitors functioning accurately.

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BW Technologies (254)
GfG Instrumentation (45)
MSA (164)
RAE Systems (189)
RPB Safety (8)

Automated Gas Detector Test System (1)
Colorimetric Tube (60)
Configurable (33)
Gas Detector (4)
Portable Monitor (56)
Portable Gas Monitor (166)
Video Transmitter & Receiver (1)

Audible/Visual (10)
Audible/Vibration/Visual (25)

% LEL (filtered) (23)
% LEL (unfiltered) (23)
Acetone (C3H6O) 0.1-2% (1)
Ammonia (NH3) (1)
Ammonia (NH3) 0-100 ppm (1)
Ammonia (NH3) 1-15% (1)
Ammonia (NH3) 10-260 ppmv (1)
Ammonia (NH3) 25-500 ppmv (1)
Ammonia (NH3) 5-100 ppmv (1)
Benzene (C6H6) 5-100 ppmv (1)
Benzene (C6H6) 5-40 ppmv Selective (1)
Butadiene (C4H6) 0.5-5 ppmv (1)
Butane (C4H10) 25-1400 ppmv (1)
Carbon Dioxide (CO2) (IR) (28)
Carbon Dioxide (CO2) 0.05-1% (1)
Carbon Dioxide (CO2) 1-20% (1)
Carbon Dioxide (CO2) 30-5000 ppmv (1)
Carbon Dioxide (CO2) 5-40% (1)
Carbon Dioxide (CO2) 50000ppm (2)
Carbon Dioxide (CO2) NDIR 50000 ppm (1)
Carbon Dioxide (CO2) NDIR 50000ppm (3)
Carbon Monoxide (CO) (11)
Carbon Monoxide (CO) 0-500 ppm (2)
Carbon Monoxide (CO) 0.2-4% (1)
Carbon Monoxide (CO) 1-1999 ppm (3)
Carbon Monoxide (CO) 1-500 ppm (3)
Carbon Monoxide (CO) 10-20 ppm (1)
Carbon Monoxide (CO) 10-25 ppm (1)
Carbon Monoxide (CO) 20-50 ppm (2)
Carbon Monoxide (CO) 20-500 ppmv (1)
Carbon Monoxide (CO) 25-100 ppm (1)
Carbon Monoxide (CO) 25-50 ppm (1)
Carbon Monoxide (CO) 30-200 ppm (1)
Carbon Monoxide (CO) 30-60 ppm (1)
Carbon Monoxide (CO) 35-100 ppm (1)
Carbon Monoxide (CO) 35-200 ppm (3)
Carbon Monoxide (CO) 5-100 ppmv (1)
Carbon Monoxide (CO) 5-100 ppmv Selective (1)
Carbon Monoxide (CO) 50-100 ppm (2)
Carbon Monoxide (CO) 50-200 ppm (2)
Carbon Monoxide (CO-H); H2 resistant (2)
Chlorine (Cl2) (1)
Chlorine (Cl2) 0-50 ppm (2)
Chlorine (Cl2) 0.5-8 ppmv (1)
Chlorine (Cl2) 5-100 ppmv (1)
Chlorine Dioxide (ClO2) (1)
Chlorine Dioxide (ClO2) 0.25-15 ppmv (1)
Cl2 (Chlorine) (2)
CO (Carbon Monoxide) (5)
CO 10ppm (4)
CO 5ppm (3)
CO-H (Carbon Monoxide with reduced H2 sensitivity) (1)
Combustible (% LEL filtered) (38)
Combustible (% LEL unfiltered) (40)
Combustible (LEL) (14)
Diesel Fuel & Jet Fuel 0.25-25 ppmv (1)
Ethanol (C2H6O) 100-2000 ppmv (1)
Ethylene Oxide (ETO) (1)
Formaldehyde (CH2O) 0-10 ppm (2)
Formaldehyde (CH2O) 0.1-5 ppmv (1)
Gasoline 30-1000 ppmv (1)
H2S (Hydrogen Sulfide) (2)
HCN (Hydrogen Cyanide) (2)
Hydrocarbons 50-1000 ppmv (1)
Hydrogen (H2) 0-1000 ppm (2)
Hydrogen Chloride (HCl) 1-20 ppmv (1)
Hydrogen Chloride (HCl) 1-20 ppmv w/Dessicant (1)
Hydrogen Chloride (HCl) 20-500 ppmv w/Dessicant (1)
Hydrogen Cyanide (HCN) 0-50 ppm (2)
Hydrogen Cyanide (HCN) 2.5-60 ppmv (1)
Hydrogen Fluoride (HF) 0.5-20 ppmv (1)
Hydrogen Sulfide (H2S) (24)
Hydrogen Sulfide (H2S) 0-100 ppm (3)
Hydrogen Sulfide (H2S) 0.1-100 ppm (6)
Hydrogen Sulfide (H2S) 0.2-3 ppmv (1)
Hydrogen Sulfide (H2S) 0.2-3 ppmv w/Dessicant (1)
Hydrogen Sulfide (H2S) 1.6-5 ppm (1)
Hydrogen Sulfide (H2S) 10-15 ppm (3)
Hydrogen Sulfide (H2S) 2-40% (1)
Hydrogen Sulfide (H2S) 25-250 ppmv (1)
Hydrogen Sulfide (H2S) 3-5 ppm (1)
Hydrogen Sulfide (H2S) 5-10 ppm (2)
Hydrogen Sulfide (H2S) 5-15 ppm (1)
Hydrogen Sulfide (H2S) 50-800 ppmv (1)
Hydrogen Sulfide (H2S) 7 ppm (1)
LEL (18)
Mercaptans 5-120 ppmv (1)
Methyl Bromide (CH3Br) 1-18 ppmv (1)
Methyl Bromide (CH3Br) 20-300 ppmv (1)
Methyl Ethyl Ketone (MEK) 0.02-0.6% (1)
NH3 (Ammonia) (2)
Nitric Acid (HNO3) 1-20 ppm (1)
Nitric Oxide (NO) (2)
Nitrogen Dioxide (NO2) (1)
Nitrogen Dioxide (NO2) 0.5-30 ppmv (1)
Nitrogen Oxides (N2O) 1-50 ppmv (1)
O2 (Oxygen) (21)
Oxygen (O2) (48)
Oxygen (O2) 0-30% vol. (2)
Oxygen (O2) 19.5%-23.5% (1)
Ozone (O3) (1)
Ozone (O3) 0.05-0.6 ppmv (1)
Phenol (C6H5OH) 1-25 ppmv (1)
Phosphine (PH3) (1)
Phosphine (PH3) 25-500 ppmv (1)
Phosphine (PH3) 5-50 ppmv (1)
Phosphine (PH3) 50-1000 ppmv (1)
PID (0-15000 ppm) (2)
PID: 10.6 eV lamp (5)
PID: 10.6 eV lamp (10 ppb-2000 ppm) (8)
PID: 10.6 eV lamp 1000ppm (10)
PID: 10.6 eV lamp 5000ppm (6)
PID: 9.8 eV lamp (1)
PID: 9.8 eV lamp (0.1-10000 ppm) (3)
PID: 9.8 eV lamp 2000ppm (1)
SO2 (Sulfur Dioxide) (2)
Sulfur Dioxide (SO2) (1)
Sulfur Dioxide (SO2) 0-20 ppm (3)
Sulfur Dioxide (SO2) 0.2-5% (1)
Sulfur Dioxide (SO2) 100-1800 ppmv (1)
Sulfur Dioxide (SO2) 2-30 ppmv (1)
Sulfur Dioxide (SO2) 2-4 ppm (1)
Sulfur Dioxide (SO2) 200-4000 ppmv (1)
Sulfur Dioxide (SO2) 5-10 ppm (1)
Sulfur Dioxide (SO2) 5-100 ppmv (1)
Toluene (C7H8) 10-300 ppmv (1)
Trichloroethylene (C2HCl3) 5-100 ppmv (1)
Vinyl Chloride (C2H3Cl) 1-20 ppmv (1)
VOC (0.1-15000 ppm) (3)
VOC (1ppb-10000ppm) (1)
VOCs % LEL (Filtered) (1)
VOCs % LEL (Unfiltered) (1)
Water Vapor (H2O) 0.05-1.0 mg/L (1)
Water Vapor (H2O) 1-18 mg/L (1)
Water Vapor (H2O) 2-10 lbs/MMCF (1)
Water Vapor (H2O) 6-40 lbs/MMCF (1)
Xylene (C8H10) 10-200 ppmv (1)

% LEL (Filtered) (12)
% LEL (Unfiltered) (12)
Benzene 50 ppb-200 ppm (3)
Carbon Monoxide (CO) (24)
Catalytic LEL (Lower explosive limit) combustible (1)
Combustible (LEL) (28)
H2S Filter (6)
Hydrogen Sulfide (H2S) (24)
LEL (8)
LEL (Lower explosive limit) combusitble (2)
LEL (Lower explosive limit) combustible (7)
LEL (Lower Explosive Limit) Combustible (8)
O2 (Oxygen) (1)
Oxygen (O2) (142)
PID (Toxic VOCs 0-2000) (1)

Carbon Monoxide (CO) (48)
Carbon Monoxide (CO)+Hydrogen Sulfide (H2S) (6)
Chlorine (Cl2) (2)
CO (Carbon Monoxide) (9)
COSH (Carbon Monoxide/Hydrogen Sulfide) (9)
Dummy Sensor (4)
Hydrogen Sulfide (H2S) (91)
Hydrogen Sulfide (H2S) (0.1-100 ppm) (13)
Infrared CO2 (Carbon Dioxide) (1)
Oxygen (O2) (38)

Ammonia (NH3) (2)
Carbon Monoxide (CO) (85)
Carbon Monoxide (CO) (0-500 ppm) (16)
CO2 (Carbon Dioxide) (2)
H2S (Hydrogen Sulfide) (10)
HCN (Hydrogen Cyanide) (1)
Hydrogen Cyanide (HCN) (4)
Hydrogen Sulfide (H2S) (37)
Hydrogen Sulfide (H2S) (0.1-100 ppm) (1)
Oxygen (O2) (1)
PID (Toxic VOCs) (3)
SO2 (Sulfur Dioxide) (3)
Sulfur Dioxide (SO2) (6)

Ammonia (NH3) (10)
Carbon Monoxide (CO) (8)
Chlorine (Cl2) (8)
Gamma (1)
Hydrogen Cyanide (HCN) (3)
Hydrogen Sulfide (H2S) (3)
Nitrogen Dioxide (NO2) (2)
Oxygen (O2) (27)
RAEMet (4)
RAEMet, Gamma Sensor (2)
Sulfur Dioxide (SO2) (15)

Alkaline (21)
CR2 Lithium (1)
Li-Ion (42)
Lithium Ion (4)
Li-Ion Rechargeable (43)
NiMH Rechargeable (14)
Rechargeable Batteries (4)

Handheld (1)
Diffusion (17)
Pumped (33)
Standard (1)

900 MHz Wireless (31)
915 MHz Wireless (5)
Bluetooth (3)
Bluetooth/Mesh 900 MHz Wireless/GPS (2)
Bluetooth/WIFI/GPS (2)
Non-Wireless (22)
Wireless (16)
Wireless Capable (1)

China (4)
North American version (147)
Taiwan (1)
USA (72)

Grid View List View

660 items found (page 24 of 28)

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image of RPB Safety GX4 Portable Gas Monitor 08-401-02 - CO 5ppm

RPB 08-401-02

RPB Safety GX4 Portable Gas Monitor 08-401-02 - CO 5ppm

$3,685.43 / Each

image of BW Technologies GasAlertQuattro Black Multi-Gas Monitor QT-XWH0-R-B-NA - Combustible (% LEL filtered) - Oxygen (O2) - Hydrogen Sulfide (H2S) - North American version

QT-XWH0-R-B-NA

BW Technologies GasAlertQuattro Black Multi-Gas Monitor QT-XWH0-R-B-NA - Combustible (% LEL filtered) - Oxygen (O2) - Hydrogen Sulfide (H2S) - North American version

$1,206.26 / Each

image of BW Technologies GasAlertQuattro Yellow Multi-Gas Monitor QT-XWH0-R-Y-NA - Combustible (% LEL filtered) - Oxygen (O2) - Hydrogen Sulfide (H2S) - North American version

QT-XWH0-R-Y-NA

BW Technologies GasAlertQuattro Yellow Multi-Gas Monitor QT-XWH0-R-Y-NA - Combustible (% LEL filtered) - Oxygen (O2) - Hydrogen Sulfide (H2S) - North American version

$1,206.26 / Each

image of BW Technologies GasAlertQuattro Black Multi-Gas Monitor QT-XWHM-A-B-NA - Combustible (% LEL filtered) - Oxygen (O2) - Hydrogen Sulfide (H2S) - Carbon Monoxide (CO) - North American version

QT-XWHM-A-B-NA

BW Technologies GasAlertQuattro Black Multi-Gas Monitor QT-XWHM-A-B-NA - Combustible (% LEL filtered) - Oxygen (O2) - Hydrogen Sulfide (H2S) - Carbon Monoxide (CO) - North American version

$1,035.76 / Each

image of BW Technologies GasAlertQuattro Yellow Multi-Gas Monitor QT-XWHM-A-Y-NA - Combustible (% LEL filtered) - Oxygen (O2) - Hydrogen Sulfide (H2S) - Carbon Monoxide (CO) - North American version

QT-XWHM-A-Y-NA

BW Technologies GasAlertQuattro Yellow Multi-Gas Monitor QT-XWHM-A-Y-NA - Combustible (% LEL filtered) - Oxygen (O2) - Hydrogen Sulfide (H2S) - Carbon Monoxide (CO) - North American version

$1,160.06 / Each

image of BW Technologies GasAlertQuattro Black Multi-Gas Monitor QT-XWHM-R-B-NA - Combustible (% LEL filtered) - Oxygen (O2) - Hydrogen Sulfide (H2S) - Carbon Monoxide (CO) - North American version

QT-XWHM-R-B-NA

BW Technologies GasAlertQuattro Black Multi-Gas Monitor QT-XWHM-R-B-NA - Combustible (% LEL filtered) - Oxygen (O2) - Hydrogen Sulfide (H2S) - Carbon Monoxide (CO) - North American version

$1,125.12 / Each

image of BW Technologies GasAlertQuattro Multi-Gas Monitor QT-XWHM-R-Y-NA-CS - VOCs % LEL (Filtered) - Oxygen (O2) - Hydrogen Sulfide (H2S) - Carbon Monoxide (CO)

QT-XWHM-R-Y-NA-CS

BW Technologies GasAlertQuattro Multi-Gas Monitor QT-XWHM-R-Y-NA-CS - VOCs % LEL (Filtered) - Oxygen (O2) - Hydrogen Sulfide (H2S) - Carbon Monoxide (CO)

$2,142.65 / Each

image of BW Technologies GasAlertQuattro Black Multi-Gas Monitor QT-000M-A-B-NA - Carbon Monoxide (CO) - North American version

QT-000M-A-B-NA

BW Technologies GasAlertQuattro Black Multi-Gas Monitor QT-000M-A-B-NA - Carbon Monoxide (CO) - North American version

$970.12 / Each

image of BW Technologies GasAlertQuattro Yellow Multi-Gas Monitor QT-000M-A-Y-NA - Carbon Monoxide (CO) - North American version

QT-000M-A-Y-NA

BW Technologies GasAlertQuattro Yellow Multi-Gas Monitor QT-000M-A-Y-NA - Carbon Monoxide (CO) - North American version

$970.12 / Each

image of BW Technologies GasAlertQuattro Black Multi-Gas Monitor QT-000M-R-B-NA - Carbon Monoxide (CO) - North American version

QT-000M-R-B-NA

BW Technologies GasAlertQuattro Black Multi-Gas Monitor QT-000M-R-B-NA - Carbon Monoxide (CO) - North American version

$1,076.79 / Each

image of BW Technologies GasAlertQuattro Black Multi-Gas Monitor QT-00H0-A-B-NA - Hydrogen Sulfide (H2S) - North American version

QT-00H0-A-B-NA

BW Technologies GasAlertQuattro Black Multi-Gas Monitor QT-00H0-A-B-NA - Hydrogen Sulfide (H2S) - North American version

$970.12 / Each

image of BW Technologies GasAlertQuattro Yellow Multi-Gas Monitor QT-00H0-A-Y-NA - Hydrogen Sulfide (H2S) - North American version

QT-00H0-A-Y-NA

BW Technologies GasAlertQuattro Yellow Multi-Gas Monitor QT-00H0-A-Y-NA - Hydrogen Sulfide (H2S) - North American version

$970.12 / Each

BW Technologies GasAlertQuattro Black Multi-Gas Monitor QT-00H0-R-B-NA - Hydrogen Sulfide (H2S) - North American version QT-00H0-R-B-NA

BW Technologies GasAlertQuattro Yellow Multi-Gas Monitor QT-00H0-R-Y-NA - Hydrogen Sulfide (H2S) - North American version QT-00H0-R-Y-NA

BW Technologies GasAlertQuattro Black Multi-Gas Monitor QT-00HM-A-B-NA - Hydrogen Sulfide (H2S) - Carbon Monoxide (CO) - North American version QT-00HM-A-B-NA

BW Technologies GasAlertQuattro Yellow Multi-Gas Monitor QT-00HM-A-Y-NA - Hydrogen Sulfide (H2S) - Carbon Monoxide (CO) - North American version QT-00HM-A-Y-NA

BW Technologies GasAlertQuattro Black Multi-Gas Monitor QT-00HM-R-B-NA - Hydrogen Sulfide (H2S) - Carbon Monoxide (CO) - North American version QT-00HM-R-B-NA

BW Technologies GasAlertQuattro Yellow Multi-Gas Monitor QT-00HM-R-Y-NA - Hydrogen Sulfide (H2S) - Carbon Monoxide (CO) - North American version QT-00HM-R-Y-NA

BW Technologies GasAlertQuattro Portable Gas Monitor Configurator QT-Base QT-BASE

BW Technologies GasAlertQuattro Black Multi-Gas Monitor QT-X000-A-B-NA - Oxygen (O2) - North American version QT-X000-A-B-NA

BW Technologies GasAlertQuattro Yellow Multi-Gas Monitor QT-X000-A-Y-NA - Oxygen (O2) - North American version QT-X000-A-Y-NA

BW Technologies GasAlertQuattro Black Multi-Gas Monitor QT-X000-R-B-NA - Oxygen (O2) - North American version QT-X000-R-B-NA

BW Technologies GasAlertQuattro Yellow Multi-Gas Monitor QT-X000-R-Y-NA - Oxygen (O2) - North American version QT-X000-R-Y-NA

BW Technologies GasAlertQuattro Black Multi-Gas Monitor QT-X00M-A-B-NA - Oxygen (O2) - Carbon Monoxide (CO) - North American version QT-X00M-A-B-NA

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Have questions? Please call us at: 1-877-774-8443

Copyright © 1997-2026 R.S. Hughes Co., Inc. All Rights Reserved