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    • eBay
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    • Business & Industrial
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    • Test Meters & Detectors
    • Gas Detectors & Monitors

    Gas Detectors & Gas Monitors

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    Best Selling

    See All- Best Selling
    • Honeywell Searchpoint Optima Plus Gas Detector (2108N4110N)
      Honeywell Searchpoint Optima Plus Gas Detector (2108N4110N)
      $830.00 New
    • BW Technologies BWC2-H Clip Single Gas H2S Monitor - Yellow
      BW Technologies BWC2-H Clip Single Gas H2S Monitor - Yellow
      (14)Total Ratings 14
      $89.00 New
      $31.99 Used
    • PANGAEA RV Propane Gas Alarm 12V Digital LP Gas Detector for Trailer Motorhom...
      PANGAEA RV Propane Gas Alarm 12V Digital LP Gas Detector for Trailer Motorhom...
      (1)Total Ratings 1
      $17.50 New
    • BW Technologies GasAlertMax XT II 4-gas Detector With Pump - Yellow (XT-XWHM-Y-NA)
      BW Technologies GasAlertMax XT II 4-gas Detector With Pump - Yellow (XT-XWHM-Y-NA)
      $600.00 New
      $350.00 Used
    • MSA 10106725 Sensor with Alarms 10/1700 ppm with Altair 4X/5X Multi-Gas Detector
      MSA 10106725 Sensor with Alarms 10/1700 ppm with Altair 4X/5X Multi-Gas Detector
      (4)Total Ratings 4
      $199.99 New
      $128.00 Used
    • Fieldpiece CAT85 Combustion Analyzer HC
      Fieldpiece CAT85 Combustion Analyzer HC
      $1,661.75 New
    • MSA 10106729 4X and ALTAIR 5X Oxygen Sensor
      MSA 10106729 4X and ALTAIR 5X Oxygen Sensor
      (3)Total Ratings 3
      $179.00 New
    • MSA 10087913 Charger - Black
      MSA 10087913 Charger - Black
      (19)Total Ratings 19
      $60.00 New
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    11,885 Results

      • MSA
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      • All Listings filter applied
    • Gas Detector Combustible Gas Leak Tester Pen Natural Gas Butane Methane Propane

      Gas Detector Combustible Gas Leak Tester Pen Natural Gas Butane Methane Propane

      $17.99
      45 sold
    • Portable Gas Leak Detector Tester Propane Methane Natural Gas Alarm Sensor Safe

      Portable Gas Leak Detector Tester Propane Methane Natural Gas Alarm Sensor Safe

      $18.99
      Free shipping
      or Best Offer
    • The SMC 4101-28 IR Gas Detector

      The SMC 4101-28 IR Gas Detector

      $400.00
      Free shipping
      or Best Offer
    • Portable Combustible Natural Gas Propane Leak Detector Tester Visual Leakage RV

      Portable Combustible Natural Gas Propane Leak Detector Tester Visual Leakage RV

      $30.90 to $36.90
    • Red Jacket 001160565 FX1V Gasoline Mechanical Line Leak Detector

      Red Jacket 001160565 FX1V Gasoline Mechanical Line Leak Detector

      $51.00
      2 bids
      $13.20 shipping
      Ending Today at 1:08PM PST28m 9s
    •  GasKnight 2.0 Natural Gas Detector & Propane Leak Sensor Detector w LCD Display

      GasKnight 2.0 Natural Gas Detector & Propane Leak Sensor Detector w LCD Display

      $36.99
    • MTI Industry 25-742BL Safe-T-Alert Carbon Monoxide Propane Leak Detector Camper

      MTI Industry 25-742BL Safe-T-Alert Carbon Monoxide Propane Leak Detector Camper

      $73.99
    • Klein Tools ET120 Combustible Gas Leak Detector

      Klein Tools ET120 Combustible Gas Leak Detector

      (6)6 product ratings - Klein Tools ET120 Combustible Gas Leak Detector
      $66.00
      4 bids
      Free shipping
      Ending Today at 7:14PM PST6h 34m
    • NEW 5 In1 Indoor Air Quality Monitor CO2 HCHO TVOC AQI Meter Detector Tester

      NEW 5 In1 Indoor Air Quality Monitor CO2 HCHO TVOC AQI Meter Detector Tester

      $20.59 to $24.16
      51 sold
    • 2019 MSA Altair 5X Multi Gas Detector Monitor Pump Measuring Tool bidadoo

      2019 MSA Altair 5X Multi Gas Detector Monitor Pump Measuring Tool bidadoo

      $266.00
      34 bids
      $80.29 shipping
      Ending Today at 2:16PM PST1h 35m
    • MSA altair 4X multi gas meter monitor detector w/ charger

      MSA altair 4X multi gas meter monitor detector w/ charger

      (1)1 product ratings - MSA altair 4X multi gas meter monitor detector w/ charger
      $250.00
      7 watching
    • BACHARACH LEAKATOR 10 COMBUSTIBLE GAS LEAK DETECTOR 19-7051

      BACHARACH LEAKATOR 10 COMBUSTIBLE GAS LEAK DETECTOR 19-7051

      (6)6 product ratings - BACHARACH LEAKATOR 10 COMBUSTIBLE GAS LEAK DETECTOR 19-7051
      $150.00
      0 bids
      $7.74 shipping
      Ending Feb 7 at 8:37AM PST6d 19h
      or Buy It Now
    • Emergency Response Car Opening Kit
      SPONSORED

      Emergency Response Car Opening Kit

      (7)7 product ratings - Emergency Response Car Opening Kit
      $189.95
      Free shipping
    • Portable Gas Detector 4-Gas Monitor Meter Tester Gas Clip Analyzer Rechargeable
      SPONSORED

      Portable Gas Detector 4-Gas Monitor Meter Tester Gas Clip Analyzer Rechargeable

      $92.99
      Free shipping
      or Best Offer
    • Air Quality Monitor Detector Accurate Test Formaldehyde HCHO TVOC PM1/2.5/10
      SPONSORED

      Air Quality Monitor Detector Accurate Test Formaldehyde HCHO TVOC PM1/2.5/10

      $54.29
      Was: $59.49
    • MSA Altair 5X Bluetooth Gas Detector LEL, O2, CO, H2O. Comes with H2S/CO Sensor

      MSA Altair 5X Bluetooth Gas Detector LEL, O2, CO, H2O. Comes with H2S/CO Sensor

      $305.00
      59 bids
      Free shipping
      Ending Wednesday at 8:15PM PST1d 7h
    • Portable Combustible Gas Propane Leak Detector Pen Natural Methane Gas Tester

      Portable Combustible Gas Propane Leak Detector Pen Natural Methane Gas Tester

      $15.99
      $3.00 shipping
      or Best Offer
    • GMI Gasurveyor 500 Series Gas Detector Leak Location and Purge Instrument

      GMI Gasurveyor 500 Series Gas Detector Leak Location and Purge Instrument

      $75.00
      1 bid
      $19.65 shipping
      Ending Thursday at 7:24AM PST1d 18h
    • WYND Halo air quality monitor

      WYND Halo air quality monitor

      $25.00
      0 bids
      $10.85 shipping
      Ending Feb 7 at 11:56AM PST6d 23h
    • Portable Combustible Natural Gas Leak Detector Tester LCD Propane Visual Leakage

      Portable Combustible Natural Gas Leak Detector Tester LCD Propane Visual Leakage

      $49.99 to $51.99
    • BW Technologies BW Clip BWC2-H Single Gas H2S Monitor

      BW Technologies BW Clip BWC2-H Single Gas H2S Monitor

      $60.00
      $7.50 shipping
      or Best Offer
    • Propane Natural Digital Gas Detector Gas Leak Detection Home Gas Alarm Plug-i...

      Propane Natural Digital Gas Detector Gas Leak Detection Home Gas Alarm Plug-i...

      $30.54
      Free shipping
      Only 2 left
    • MTI Industry 25-741-BL Safe-T-Alert Carbon Monoxide Propane Leak Detector

      MTI Industry 25-741-BL Safe-T-Alert Carbon Monoxide Propane Leak Detector

      $79.99
    • HABOTEST HT601A Combustible Natural Gas Propane Leak Detector Tester Leakage

      HABOTEST HT601A Combustible Natural Gas Propane Leak Detector Tester Leakage

      $39.99
      Was: $49.99
    • 5 SKC AirChek 2000 Sampling Pumps with Multi Charger and Case.  Free Shipping

      5 SKC AirChek 2000 Sampling Pumps with Multi Charger and Case.  Free Shipping

      $990.00
      1 bid
      Free shipping
      Ending Friday at 11:19AM PST2d 22h
    • Portable Combustible Natural Gas Leak Detector Tester LCD Propane Visual Leakage

      Portable Combustible Natural Gas Leak Detector Tester LCD Propane Visual Leakage

      $47.98
    • Oxygen Concentration Purity Tester Meter Detector Analyzer O2 Analyzer
      SPONSORED

      Oxygen Concentration Purity Tester Meter Detector Analyzer O2 Analyzer

      $299.00
      Free shipping
    • 2PCS 4 in 1 Gas Detector O2 H2S CO EX Multi Gas Analyzer toxic Gas Monitor Tool
      SPONSORED

      2PCS 4 in 1 Gas Detector O2 H2S CO EX Multi Gas Analyzer toxic Gas Monitor Tool

      $187.99
      Free shipping
      or Best Offer
    • Portable Gas Leak Detector Propane Butane Methane Natural Gas Safe Alarm Sensor
      SPONSORED

      Portable Gas Leak Detector Propane Butane Methane Natural Gas Safe Alarm Sensor

      $20.99
      Only 2 left
    • HABOTEST HT601A Gas Leak Tester Combustible Natural Detector Gas Propane Leakage
      SPONSORED

      HABOTEST HT601A Gas Leak Tester Combustible Natural Detector Gas Propane Leakage

      $32.99
      Was: $43.99
    • UNTESTED MSA Altair 4X

      UNTESTED MSA Altair 4X

      $54.00
      24 bids
      $10.55 shipping
      Ending Wednesday at 1:56AM PST13h 16m
    • Tuya Smart Wifi Wireless Smoke Detector &Combustible Gas Detector LCD Display US

      Tuya Smart Wifi Wireless Smoke Detector &Combustible Gas Detector LCD Display US

      $26.58
      8 watching
    • SKC Airchek 2000 210-1002 Programmable Air Sampler Pump w Plug In Cord

      SKC Airchek 2000 210-1002 Programmable Air Sampler Pump w Plug In Cord

      $0.99
      1 bid
      $10.00 shipping
      Ending Feb 6 at 2:39PM PST6d 1h
    • INDUSTRIAL SCIENTIFIC IBRID MX6 MULTI GAS DETECTOR

      INDUSTRIAL SCIENTIFIC IBRID MX6 MULTI GAS DETECTOR

      $50.00
      1 bid
      $10.00 shipping
      Ending Friday at 11:45AM PST2d 23h
    • RKI GX-3R Gas Detector 4 Detector

      RKI GX-3R Gas Detector 4 Detector

      $179.99
      $9.99 shipping
      or Best Offer
    • BW Technogies MCXL-XWHM-Y-NA Gas Alert MicroClip XL Gas Detector

      BW Technogies MCXL-XWHM-Y-NA Gas Alert MicroClip XL Gas Detector

      $100.00
      1 bid
      $6.40 shipping
      Ending Thursday at 9:11AM PST1d 20h
    • PANGAEA RV Propane Gas Alarm 12V Digital LP Gas Detector for Trailer Motorhome
      SPONSORED

      PANGAEA RV Propane Gas Alarm 12V Digital LP Gas Detector for Trailer Motorhome

      (1)1 product ratings - PANGAEA RV Propane Gas Alarm 12V Digital LP Gas Detector for Trailer Motorhome
      $18.94
    • Portable Gas Leak Detector Tester Propane Methane Natural Gas Alarm Sensor Safe
      SPONSORED

      Portable Gas Leak Detector Tester Propane Methane Natural Gas Alarm Sensor Safe

      $15.89
    • Atmotube Pro Portable Air Quality Monitor !!! CRYPTO MINING LICENSE INCLUDED !!!

      Atmotube Pro Portable Air Quality Monitor !!! CRYPTO MINING LICENSE INCLUDED !!!

      (7)7 product ratings - Atmotube Pro Portable Air Quality Monitor !!! CRYPTO MINING LICENSE INCLUDED !!!
      $88.88
      1 bid
      Free shipping
      Ending Saturday at 5:38PM PST4d 4h
    • Restek Helium Leak Detector - Refurbished 6/22

      Restek Helium Leak Detector - Refurbished 6/22

      $595.00
      1 bid
      $24.90 shipping
      Ending Feb 5 at 1:00PM PST5d
    • Home Flex Electronic Gas Leak Detector 11-810-001 - Tested Working

      Home Flex Electronic Gas Leak Detector 11-810-001 - Tested Working

      $14.99
      1 bid
      $6.35 shipping
      Ending Saturday at 7:40PM PST4d 7h
    • thermo scientific MIE pDR-1500

      thermo scientific MIE pDR-1500

      $51.00
      2 bids
      $9.60 shipping
      Ending Thursday at 2:34PM PST2d 1h
      or Buy It Now
    • Forensic Detectors, Gas sampling pump and Single Gas detector

      Forensic Detectors, Gas sampling pump and Single Gas detector

      $99.00
      $11.30 shipping
    • Ventis mx4

      Ventis mx4

      $15.00
      1 bid
      $6.30 shipping
      Ending Saturday at 4:49PM PST4d 4h
    • MX4 Ventis CO H25 LEL Multi Gas Monitor Detector New O2, Industrial SCIENTIFIC

      MX4 Ventis CO H25 LEL Multi Gas Monitor Detector New O2, Industrial SCIENTIFIC

      $140.00
      1 bid
      $49.00 shipping
      Ending Thursday at 10:46AM PST1d 22h

    Results Pagination - Page 1

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    Top Rated

    See All- Top Rated
    • TECHAMOR Y201 Methane Propane Combustible Natural Gas Leak Sniffer Detector
      TECHAMOR Y201 Methane Propane Combustible Natural Gas Leak Sniffer Detector
      (25)Total Ratings 25
      100% agree - Would recommend
      $29.99 New
      $12.00 Used
    • RIDGID 36163 Micro CD-100 Combustible Gas Detector - Grey
      RIDGID 36163 Micro CD-100 Combustible Gas Detector - Grey
      (22)Total Ratings 22
      100% agree - Would recommend
      $84.99 New
      $69.00 Used
    • MSA 10087913 Charger - Black
      MSA 10087913 Charger - Black
      (19)Total Ratings 19
      100% agree - Would recommend
      $60.00 New
    • BW Technologies BWC2-H Clip Single Gas H2S Monitor - Yellow
      BW Technologies BWC2-H Clip Single Gas H2S Monitor - Yellow
      (14)Total Ratings 14
      100% agree - Would recommend
      $89.00 New
      $31.99 Used
    • Fieldpiece SCM4 Carbon Monoxide Detector - Black/Yellow
      Fieldpiece SCM4 Carbon Monoxide Detector - Black/Yellow
      (10)Total Ratings 10
      100% agree - Would recommend
      $269.99 New
      $169.88 Used
    • Klein Tools ET110 Carbon Monoxide Meter
      Klein Tools ET110 Carbon Monoxide Meter
      (9)Total Ratings 9
      100% agree - Would recommend
      $99.95 New
      $80.00 Used
    • Access Tools AETERK Emergency Response Kit
      Access Tools AETERK Emergency Response Kit
      (7)Total Ratings 7
      100% agree - Would recommend
      $189.95 New
    • General Tools PNG2000A Natural Gas Detector Pen 2day Ship
      General Tools PNG2000A Natural Gas Detector Pen 2day Ship
      (7)Total Ratings 7
      100% agree - Would recommend
      $18.90 New
      $12.97 Used

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