Gas Detectors & Monitors | Surplus Network

VEVOR Gas Leak Detector Portable Combustible Natural Gas Propane Leak Tester AAA

VEVOR Gas Leak Detector Portable...

$28.99 USD

VEVOR Gas Leak Detector Portable...

$28.99 USD

Tuya WiFi Smart Sensor Alarm Sensor Natural Gas Leak Detector LCD Display

Tuya WiFi Smart Sensor Alarm Sensor...

$28.99 USD

Tuya WiFi Smart Sensor Alarm Sensor...

$28.99 USD

VEVOR Gas Leak Detector 50-10,000 PPM Natural Gas Detector with 18.5-inch Probe

VEVOR Gas Leak Detector 50-10,000 PPM...

$28.99 USD

VEVOR Gas Leak Detector 50-10,000 PPM...

$28.99 USD

MSA Orion Multi-Gas Detector with Accessories

MSA Orion Multi-Gas Detector with...

$149.99 USD

MSA Orion Multi-Gas Detector with...

$149.99 USD

Rae MultiRae Lite PGM6208 Multi Gas Tester No Battery & AC Power

Rae MultiRae Lite PGM6208 Multi Gas...

$149.99 USD

Rae MultiRae Lite PGM6208 Multi Gas...

$149.99 USD

Portable Combustible Natural Gas Propane Leak Detector Tester Visual Leakage RV

Portable Combustible Natural Gas...

$19.90 USD

Portable Combustible Natural Gas...

$19.90 USD

Kobalt Combustible Gas Leak Detector Audible & Visual Alarms SC-GDPB {X}

Kobalt Combustible Gas Leak Detector...

$19.90 USD

Kobalt Combustible Gas Leak Detector...

$19.90 USD

Moen Smart Leak Detectors 3 Pk Works w/ Alexa Excess Humidity/Temps New Sealed

Moen Smart Leak Detectors 3 Pk Works...

$67.75 USD

Moen Smart Leak Detectors 3 Pk Works...

$67.75 USD

HABOTEST HT59A Digital Natural Gas Leak Detector Alarm Gas Leak Monitor for Home

HABOTEST HT59A Digital Natural Gas...

$13.48 USD

HABOTEST HT59A Digital Natural Gas...

$13.48 USD

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

Portable Gas Leak Detector Tester...

$6.78 USD

Portable Gas Leak Detector Tester...

$6.78 USD

MTI Industry 25-742BL Safe-T-Alert Carbon Monoxide Propane Leak Detector 2024

MTI Industry 25-742BL Safe-T-Alert...

$81.99

MTI Industry 25-742BL Safe-T-Alert...

$81.99

Honeywell BW Technologies BWC2-H BW Clip Single Gas H2S Monitor 6-13-2023

Honeywell BW Technologies BWC2-H BW...

$22.99 USD

Honeywell BW Technologies BWC2-H BW...

$22.99 USD

Indoor CO2 Detector Real-Time CO2 PPM Air Quality Monitor Tester Carbon Dioxide

Indoor CO2 Detector Real-Time CO2 PPM...

$22.99 USD

Indoor CO2 Detector Real-Time CO2 PPM...

$22.99 USD

Honeywell BW Clip H2S Two-Year Gas Monitor

Honeywell BW Clip H2S Two-Year Gas...

$85.00 USD

Honeywell BW Clip H2S Two-Year Gas...

$85.00 USD

VEVOR Carbon Monoxide Detector 0-1000PPM CO Gas Leak Detector with Audible

VEVOR Carbon Monoxide Detector...

$28.69 USD

VEVOR Carbon Monoxide Detector...

$28.69 USD

RKI Eagle 2 Portable 4 Gas Monitor

RKI Eagle 2 Portable 4 Gas Monitor

$1,200.00 USD

RKI Eagle 2 Portable 4 Gas Monitor

$1,200.00 USD

RV Propane Gas Detector 12V High Sensitivity Propane Alarm Leak Detect

RV Propane Gas Detector 12V High...

$27.84 USD

RV Propane Gas Detector 12V High...

$27.84 USD

RKI GX-2012 4 gas air monitor and leak locator/ Gas Detector.

RKI GX-2012 4 gas air monitor and...

$90.00 USD

RKI GX-2012 4 gas air monitor and...

$90.00 USD

Klein Tools ET120 Combustible Gas Leak Detector

Klein Tools ET120 Combustible Gas...

$54.99 USD

Klein Tools ET120 Combustible Gas...

$54.99 USD

PT520B+Rechargeable Natural Gas Detector Gas Leak Detector with a 17-inch Pro...

PT520B+Rechargeable Natural Gas...

$40.50 USD

PT520B+Rechargeable Natural Gas...

$40.50 USD

Lot of 16 Smiths Detection HazMatID 360 GasID Responder RCI large lot AS IS

Lot of 16 Smiths Detection HazMatID...

$7,999.99 USD

Lot of 16 Smiths Detection HazMatID...

$7,999.99 USD

BW GasAlert Max XT II O2 Monitor With Charger, Accessories XT-XWHM-Y-NA

BW GasAlert Max XT II O2 Monitor With...

$315.00 USD

BW GasAlert Max XT II O2 Monitor With...

$315.00 USD

UEi Test Instruments CD100A Combustible Gas Leak Detector

UEi Test Instruments CD100A...

$49.99 USD

UEi Test Instruments CD100A...

$49.99 USD

RAD-0102 CO2 Safety Storage Alarm Monitor

RAD-0102 CO2 Safety Storage Alarm...

$49.99 USD

RAD-0102 CO2 Safety Storage Alarm...

$49.99 USD

Natural Gas Detector, Toptes PT177 Gas Leak Detector with Audible & Visual Alarm

Natural Gas Detector, Toptes PT177...

$23.49 USD

Natural Gas Detector, Toptes PT177...

$23.49 USD

HABOTEST HT59 Gas Tester Pen Natural Butane Methane Propane Gas Leak Detector

HABOTEST HT59 Gas Tester Pen Natural...

$17.72 USD

HABOTEST HT59 Gas Tester Pen Natural...

$17.72 USD

2 Honeywell BW Clip Single Gas Detector H2S BWC2-H (S2)

2 Honeywell BW Clip Single Gas...

$55.00 USD

2 Honeywell BW Clip Single Gas...

$55.00 USD

Gas Leak Detector Wifi for Home Natural Gas Leak Detector LCD Screen APP Alarm

Gas Leak Detector Wifi for Home...

$30.00 USD

Gas Leak Detector Wifi for Home...

$30.00 USD

Honeywell BW Clip4 Multi-gas Detector USED/EXPIRE FOR PARTS ONLY YELLOW

Honeywell BW Clip4 Multi-gas Detector...

$30.00 USD

Honeywell BW Clip4 Multi-gas Detector...

$30.00 USD

MSA Safety 10087913 Charger for Altair 4X and 5X Multi

MSA Safety 10087913 Charger for...

$59.00 USD

MSA Safety 10087913 Charger for...

$59.00 USD

Bar 97 Zero Calibration Gas (Blend Code 37)

Bar 97 Zero Calibration Gas (Blend...

$59.00 USD

Bar 97 Zero Calibration Gas (Blend...

$59.00 USD

Activate by 07/2025 BW Tech BWC2-H Single Gas Monitor Hydrogen Sulfide H2S

Activate by 07/2025 BW Tech BWC2-H ...

$84.99 USD

Activate by 07/2025 BW Tech BWC2-H ...

$84.99 USD

Rechargeable Carbon Monoxide Detector with LCD Screen and Temperature/Humidity

Rechargeable Carbon Monoxide Detector...

$29.90 USD

Rechargeable Carbon Monoxide Detector...

$29.90 USD

HABOTEST HT609 HT59 Natural Gas Propane Leak Detector Portable Tester Carbon

HABOTEST HT609 HT59 Natural Gas...

$16.45 USD

HABOTEST HT609 HT59 Natural Gas...

$16.45 USD

Fieldpiece CAT45 Combustion Analyzer - USED

Fieldpiece CAT45 Combustion Analyzer...

$544.99 USD

Fieldpiece CAT45 Combustion Analyzer...

$544.99 USD

Kobalt SC-GDPB Combustible Gas Leak Detector for Grills Fireplace Ovens more NEW

Kobalt SC-GDPB Combustible Gas Leak...

$19.75 USD

Kobalt SC-GDPB Combustible Gas Leak...

$19.75 USD

HABOTEST HT601A Gas Leak Detector Gas Tester Natural Butane Methane Propane Pen

HABOTEST HT601A Gas Leak Detector Gas...

$26.58 USD

HABOTEST HT601A Gas Leak Detector Gas...

$26.58 USD

Industrial Scientific iBrid MX6 Multigas Gas Meter

Industrial Scientific iBrid MX6...

$199.99 USD

Industrial Scientific iBrid MX6...

$199.99 USD

MSA Altair 4 Gas Detector With Charger in Original Box

MSA Altair 4 Gas Detector With...

$199.99 USD

MSA Altair 4 Gas Detector With...

$199.99 USD

Fireboy-Xintex (G-1B-R) - Marine Black Round Gasoline Fume Detection System..NEW

Fireboy-Xintex (G-1B-R) - Marine...

$199.99 USD

Fireboy-Xintex (G-1B-R) - Marine...

$199.99 USD

EKM Metering Inc. 3/4" Pulse Output Gas Meter (PGM-075)

EKM Metering Inc. 3/4" Pulse Output...

$100.00 USD

EKM Metering Inc. 3/4" Pulse Output...

$100.00 USD

TIF8800X Combustible gas detector-USED-

TIF8800X Combustible gas detector-USED-

$100.00 USD

TIF8800X Combustible gas detector-USED-

$100.00 USD

VENTIS MX4 Multi Gas Monitor With Charger

VENTIS MX4 Multi Gas Monitor With...

$100.00 USD

VENTIS MX4 Multi Gas Monitor With...

$100.00 USD

Honeywell BWS1-A2-Y BW Solo IP68 High 50 PPM/Low 25 PPM Single-Gas Detector

Honeywell BWS1-A2-Y BW Solo IP68 High...

$91.20 USD

Honeywell BWS1-A2-Y BW Solo IP68 High...

$91.20 USD

MSA ALTAIR 4XR Multigas Detector, LEL, O2, CO, H2S

MSA ALTAIR 4XR Multigas Detector,...

$329.99 USD

MSA ALTAIR 4XR Multigas Detector,...

$329.99 USD

Tourmate Hard Storage Case for TopTes PT199 Natural Gas Leak Detector (Only C

Tourmate Hard Storage Case for TopTes...

$14.16 USD

Tourmate Hard Storage Case for TopTes...

$14.16 USD

Tank Utility Monitor

Tank Utility Monitor

$99.00 USD

Tank Utility Monitor

$99.00 USD

Industrial Scientific Replacement Oxygen Sensor for MX6 Gas Detector 17124975-3

Industrial Scientific Replacement...

$99.00 USD

Industrial Scientific Replacement...

$99.00 USD

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

MTI Industry 25-741-BL Safe-T-Alert...

$71.49 USD

MTI Industry 25-741-BL Safe-T-Alert...

$71.49 USD

RAE Systems C03-0911-000 Replacement LEL Sensor; LEL 4R+ NEVER USED

RAE Systems C03-0911-000 Replacement...

$165.00 USD

RAE Systems C03-0911-000 Replacement...

$165.00 USD

UEi Test Instruments CD100A Combustible Gas Leak Detector

UEi Test Instruments CD100A...

$44.99 USD

UEi Test Instruments CD100A...

$44.99 USD

HABOTEST HT59 HT60 HT61 Gas Detector Combustible Gas Leak Tester Pen Natural Gas

HABOTEST HT59 HT60 HT61 Gas Detector...

$15.59 USD

HABOTEST HT59 HT60 HT61 Gas Detector...

$15.59 USD

Radoneye Pro RD200P Professional Radon Detector Ecosense

Radoneye Pro RD200P Professional...

$600.00 USD

Radoneye Pro RD200P Professional...

$600.00 USD

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

Portable Gas Leak Detector Tester...

$12.00 USD

Portable Gas Leak Detector Tester...

$12.00 USD

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

4-Gas Monitor Meter Tester Analyzer...

$88.50 USD

4-Gas Monitor Meter Tester Analyzer...

$88.50 USD

Natural Gas Detector, Toptes PT177 Gas Leak Detector with Audible & Visual Alarm

Natural Gas Detector, Toptes PT177...

$22.55 USD

Natural Gas Detector, Toptes PT177...

$22.55 USD

Ecosense EQ100 EcoQube, WiFi connected Digital Radon Detector,Remote Data access

Ecosense EQ100 EcoQube, WiFi...

$95.00 USD

Ecosense EQ100 EcoQube, WiFi...

$95.00 USD

Honeywell - BWC2-X BW Clip Portable Single Gas O2 Oxygen Detector Monitor NEW

Honeywell - BWC2-X BW Clip Portable...

$50.00 USD

Honeywell - BWC2-X BW Clip Portable...

$50.00 USD

MSA SIRIUS MULTIGAS DETECTOR T4 LI-ION PACK WITH CASE

MSA SIRIUS MULTIGAS DETECTOR T4...

$225.00 USD

MSA SIRIUS MULTIGAS DETECTOR T4...

$225.00 USD

Natural Gas Detector, Toptes PT177 Gas Leak Detector with Audible & Visual Alarm

Natural Gas Detector, Toptes PT177...

$26.99 USD

Natural Gas Detector, Toptes PT177...

$26.99 USD

SafetySiren Pro Series 4 Radon Detector

SafetySiren Pro Series 4 Radon Detector

$99.99 USD

SafetySiren Pro Series 4 Radon Detector

$99.99 USD

MSA MiniOX RESPONDER DIGITAL OXYGEN DETECTOR FREE SHIPPING L183

MSA MiniOX RESPONDER DIGITAL OXYGEN...

$99.99 USD

MSA MiniOX RESPONDER DIGITAL OXYGEN...

$99.99 USD

Gas Sampling Pump by FORENSICS Stainless Steel Probe Made for Gas Detectors

Gas Sampling Pump by FORENSICS...

$79.99 USD

Gas Sampling Pump by FORENSICS...

$79.99 USD

Air Quality Monitor CO2 Tester Temperature Humidity Formaldehyde Gas Detector

Air Quality Monitor CO2 Tester...

$34.99 USD

Air Quality Monitor CO2 Tester...

$34.99 USD

GasKnight 2.0 Natural Gas Detector & Propane Detector w LCD Display NEW

GasKnight 2.0 Natural Gas Detector &...

$34.99 USD

GasKnight 2.0 Natural Gas Detector &...

$34.99 USD

Home Radon Detector, Portable Radon Meter, Elifecity Long and Short Term Home

Home Radon Detector, Portable Radon...

$34.99 USD

Home Radon Detector, Portable Radon...

$34.99 USD

Home Radon Detector, Portable Radon Meter, Long and Short Term Monitor, Recharge

Home Radon Detector, Portable Radon...

$65.00 USD

Home Radon Detector, Portable Radon...

$65.00 USD

BTMETER BT-5800G Ammonia Gas Detector Sensor, Test for 0~100 PPM Nh3

BTMETER BT-5800G Ammonia Gas Detector...

$110.00 USD

BTMETER BT-5800G Ammonia Gas Detector...

$110.00 USD

AirThings 2350 Digital Radon Detector w Continuous Monitoring (E10035721)

AirThings 2350 Digital Radon Detector...

$49.95 USD

AirThings 2350 Digital Radon Detector...

$49.95 USD

Plug-in Digital Natural Gas Detector Propane Gas Combustible Gas Leak Alarm K7R7

Plug-in Digital Natural Gas Detector...

$17.99 USD

Plug-in Digital Natural Gas Detector...

$17.99 USD

Gas Leak Detector Combustible Natural Co2 Flammable Alcohol LPG Methane Analyzer

Gas Leak Detector Combustible Natural...

$17.99 USD

Gas Leak Detector Combustible Natural...

$17.99 USD

US Plug-In Digital Natural Gas Detector Propane Combustible Gas Leak Alarm N6R5

US Plug-In Digital Natural Gas...

$17.99 USD

US Plug-In Digital Natural Gas...

$17.99 USD

CO2 Controller, Smart Outlet Carbon Dioxide Monitor for CO2 Regulators

CO2 Controller, Smart Outlet Carbon...

$119.00 USD

CO2 Controller, Smart Outlet Carbon...

$119.00 USD

BW GasAlert QUATTRO Multi-Gas Detector ~ UNTESTED

BW GasAlert QUATTRO Multi-Gas...

$74.99 USD

BW GasAlert QUATTRO Multi-Gas...

$74.99 USD

Oatey 30891 Rain-R-Shine Medium Blue Cement 8oz

Oatey 30891 Rain-R-Shine Medium Blue...

$9.50 USD

Oatey 30891 Rain-R-Shine Medium Blue...

$9.50 USD

Riken Keiki FI-21 Gas Indicator Precision Analyzer Co2 N2O Volume Gas Reader

Riken Keiki FI-21 Gas Indicator...

$560.00 USD

Riken Keiki FI-21 Gas Indicator...

$560.00 USD

Honeywell BWC2-M BW Clip Portable Single Gas Monitor New. 3

Honeywell BWC2-M BW Clip Portable...

$44.95 USD

Honeywell BWC2-M BW Clip Portable...

$44.95 USD

Natural Gas Detector, Toptes PT177 Gas Leak Detector with Audible & Visual Alarm

Natural Gas Detector, Toptes PT177...

$22.50 USD

Natural Gas Detector, Toptes PT177...

$22.50 USD

Supercool Stopa A/C Leak Stop Seals, Aerosal Can, 4Oz.

Supercool Stopa A/C Leak Stop Seals,...

$10.99 USD

Supercool Stopa A/C Leak Stop Seals,...

$10.99 USD

BRAND NEW Bacharach Leakator 10 Gas...

$125.00 USD

BRAND NEW Bacharach Leakator 10 Gas...

$125.00 USD

MSA Altair 5X Gray Portable Rechargeable Multi-Gas PID Detector w/Color Display

MSA Altair 5X Gray Portable...

$699.99 USD

MSA Altair 5X Gray Portable...

$699.99 USD

ISC Industrial Scientific Ventis Pumped MX4 Gas Detector Calibrated Warranty

ISC Industrial Scientific Ventis...

$699.99 USD

ISC Industrial Scientific Ventis...

$699.99 USD

Klein ET110 Carbon Monoxide Detector with Carry Pouch and Batteries

Klein ET110 Carbon Monoxide Detector...

$94.95 USD

Klein ET110 Carbon Monoxide Detector...

$94.95 USD

Kobalt Combustible Gas Leak Detector Audible & Visual Alarms SC-GDPB

Kobalt Combustible Gas Leak Detector...

$19.49 USD

Kobalt Combustible Gas Leak Detector...

$19.49 USD

Techamor Y401 Natural Gas Detector AC Plug-In Simple Home Gas Alarm Monitor NEW

Techamor Y401 Natural Gas Detector AC...

$5.50 USD

Techamor Y401 Natural Gas Detector AC...

$5.50 USD

10 In 1 Air Quality Monitor With Portable Sensors For Co2, Mold And More

10 In 1 Air Quality Monitor With...

$45.00 USD

10 In 1 Air Quality Monitor With...

$45.00 USD

Klein Tools ET110 Carbon Monoxide Meter with Exposure Alarm, Batteries and Case

Klein Tools ET110 Carbon Monoxide...

$74.96 USD

Klein Tools ET110 Carbon Monoxide...

$74.96 USD

Inficon 718-202-G1 GAS-Mate® Combustible Gas Leak Detector

Inficon 718-202-G1 GAS-Mate®...

$185.00 USD

Inficon 718-202-G1 GAS-Mate®...

$185.00 USD

WiFi Air Quality Monitor Detects CO2/PM2.5/PM10/HCHO 8-in-1 Large LED Screen TVO

WiFi Air Quality Monitor Detects...

$69.99 USD

WiFi Air Quality Monitor Detects...

$69.99 USD

Robinair TIF8800X Combustible Gas Detector

Robinair TIF8800X Combustible Gas...

$60.00 USD

Robinair TIF8800X Combustible Gas...

$60.00 USD

4in1 Gas Detector Gas Clip Rechargeable 4-Gas Monitor-Meter Tester Analyzers

4in1 Gas Detector Gas Clip...

$88.60 USD

4in1 Gas Detector Gas Clip...

$88.60 USD

Govee Smart Air Quality Monitor Indoor Air Quality Meter Temp Humidity H5106

Govee Smart Air Quality Monitor...

$29.99 USD

Govee Smart Air Quality Monitor...

$29.99 USD

TIF 8800A Combustible Gas Detector with Case NO POWER CABLE

TIF 8800A Combustible Gas Detector...

$17.65 USD

TIF 8800A Combustible Gas Detector...

$17.65 USD

Blackline Safety G7c G7C-Z-NA Kit Portable Gas Monitor NEW FREE Shipping!

Blackline Safety G7c G7C-Z-NA Kit...

$40.00 USD

Blackline Safety G7c G7C-Z-NA Kit...

$40.00 USD

Aquasol PRO OX-100 Oxygen Purge Monitor SN:1083, No Pwr. Sup., Data Cable, Probe

Aquasol PRO OX-100 Oxygen Purge...

$177.80 USD

Aquasol PRO OX-100 Oxygen Purge...

$177.80 USD

TIF Combustible GAS Detector Untested Auto Tector Selling As Is

TIF Combustible GAS Detector ...

$20.00 USD

TIF Combustible GAS Detector ...

$20.00 USD

Gas Monitor Meter Tester Analyzer Portable Gas Detector Rechargeable Gas Clip

Gas Monitor Meter Tester Analyzer...

$96.90 USD

Gas Monitor Meter Tester Analyzer...

$96.90 USD

MSA 10

MSA 10' PU Sampling Line w/ Quick...

$120.00 USD

MSA 10' PU Sampling Line w/ Quick...

$120.00 USD

OXYGEN Analyzer | Scuba Diving | 0-100% | USA NIST Calibration Source |

OXYGEN Analyzer | Scuba Diving |...

$199.00 USD

OXYGEN Analyzer | Scuba Diving |...

$199.00 USD

Honeywell BW Clip BWC2-X Single Gas Two-Year O2 Oxygen Monitor 2/24

Honeywell BW Clip BWC2-X Single Gas...

$59.99 USD

Honeywell BW Clip BWC2-X Single Gas...

$59.99 USD