Skip to main content
Hi
!
Hi!
Sign in
or
register
Help & Contact
Sell
Watchlist
Expand Watch List
My eBay
Expand My eBay
Summary
Recently Viewed
Bids/Offers
Watchlist
Purchase History
Selling
Saved feed
Saved Searches
Saved Sellers
Messages
Expand Notifications
Please
sign-in
to view notifications.
Expand Cart
Loading...
eBay Home
Shop by category
All Categories
Search
Advanced
Gas Detectors & Gas Monitors
Shop by Brand
MSA
Honeywell
RIDGID
BW Technologies
Extech
Monitor
UEi
Bacharach
Industrial Scientific
Amprobe
Fluke
INFICON
More to explore
4 Gas Monitor
Altair 4x
Bascom Turner
Carbon Monoxide Meter
Gas Leak Detector
Methane Gas Detector
Multi Gas Detector
Natural Gas Leak Detector
Oxygen Analyzer In Gas Detectors & Gas Monitors
Ozone Detector
Servomex In Gas Detectors & Gas Monitors
breadcrumb
eBay
Business & Industrial
Test, Measurement & Inspection
Business & Industrial
Test, Measurement & Inspection
Test Meters & Detectors
Gas Detectors & Monitors
Browse by Brand
3M
ABB
Accurate
Agilent
Alcatel-Lucent
AMETEK
Amprobe
ATI
Atmotube
B&K
Bacharach
Beacon
Bullard
BW Technologies
Carejoy
Case
CAT
Centech
CENTURY
CPS
Dayton
DC
Eagle
Electric
Extech
Fieldpiece
Fluke
Foxboro
GC
Genesis
Grey Pneumatic
GT
H&S
Hach
Heath
HF
Honeywell
HP
Industrial Scientific
INFICON
Innova
LAB SAFETY SUPPLY
LPM
Monitor
MSA
Mst
MTI
OMEGA
Pelican
PRO
Pulse
Quantum
Quest
RAD
RAE Systems
RIDGID
Ritchie
SCOTT
Siemens
Sierra
Smart Sensor
SMC
SNAP
Solaris
Spectra
Sperian
Standard
Star
SUPCO
TECHAMOR
Temtop
Testo
TPI
Turner
UEi
Ultra
Unico
Unit
Varian
Watts
Yokogawa
YSI
Shop by category
Test Meters & Detectors
Gas Detectors & Monitors
Air Flow & Anemometers
Ammeters
Capacitance & ESR Meters
Digital Tachometers
Dynamometers
EMF & Gaussmeters
Earth Ground Resistance Meters
Electrical Usage Meters
Fiber Optic Power Meters
Frequency Counters
Hygrometers
LCR Meters & Impedance Analyzers
Light & Lux Meters
Liquid & Mass Flow Meters
Manometers/Air Pressure Meters
Metal Detector Accessories
Metal Detectors
Multimeters
Ohmmeters & Megohmmeters
Other Test Meters & Detectors
Panel Meters
RF & Microwave Power Meters
Radiation Detectors
Signal Level Meters
Sound Level Meters
Test Meter Parts & Accessories
Thermometers & Temperature Measurement
Ultrasonic Flaw Detectors
Vibration Meters
Voltage Detectors
Voltmeters
pH, Conductivity & TDS Meters
More
View more categories
PT520B+Rechargeable Natural Gas Detector Gas Leak Detector with a 17-inch Pro...
Brand New
·
PRO
S$ 62.95
S$ 30.91 shipping
60 sold
Temtop M2000 2nd Air Quality Monitor PM2.5/10 CO2 HCHO Formaldehyde Detector
Brand New
·
Temtop
S$ 279.83
or Best Offer
S$ 223.19 shipping
97 watching
10PCS Alphasense O2-A2 Oxygen Sensor 02-A2 For BW Tech Gas Alert MicroClip XT
Brand New
S$ 416.97
Free shipping
PT520A Natural Gas Detector, Gas Leak Detector with 17-Inch Gooseneck
Brand New
S$ 41.96
S$ 47.63 shipping
72 watching
RKI Instruments GX-Force Sample Draw 4 Gas Monitor | NEW | 72-FA-A
Brand New
S$ 641.85
S$ 45.58 shipping
New Date Code 4OXV CITY CiTiceL Oxygen Sensor 40XV 40X-V AAY80-390
Brand New
·
City
S$ 50.36
S$ 6.72 shipping
64 sold
MSA ALTAIR O2 10092523C Safety Single Gas Detector Oxygen(BRAND NEW SEALED!!!)
Brand New
·
MSA
S$ 111.92
S$ 32.35 shipping
4 in 1 Gas Detector O2 H2S EX CO Gas Detector Fixed O2 H2S EX CO Gas Detector
Brand New
S$ 872.92
or Best Offer
Free shipping
MTI Industry 25-741-BL Safe-T-Alert Carbon Monoxide Propane Leak Detector
Brand New
·
MTI
S$ 96.55
S$ 40.28 shipping
24 watching
Portable CO2 Detector Mini Indoor Monitor NDIR Sensor Alarm Calibration LCD Home
Brand New
S$ 37.77
Free shipping
32 watching
New FIGARO TGS813 TGS-813 GAS Sensor
Brand New
·
Figaro
S$ 13.82
S$ 6.72 shipping
RAE Systems Oxygen O2 Sensor Replacement C03-0942-000 OEM Warranty AUG 2027
Brand New
·
RAE Systems
S$ 251.86
or Best Offer
S$ 43.04 shipping
2 watching
Crowcon T4 multi gas detector %LEL, Oxy, CO, H2S c/w charger & cradle
c/w free yellow safety ergo glasses
Brand New
·
Crowcon
S$ 675.87
S$ 51.99 shipping
36 watching
Belimo 22G0214-5B- Gas monitor, Carbon monoxide - BACnet MS/TP
Brand New
S$ 384.79
S$ 40.40 shipping
NET SAFETY MONITORING INC ST320A-100-ASSY, HYDROGEN SULFIDE (H2S) 0-20/50/100PPM
Brand New
S$ 587.23
S$ 68.50 shipping
BW MCXL-XWHM-Y-NA Gas/Alert Micro Clip XL 4 Gas Monitor (LEL CO H2S O2)
Brand New
·
BW
S$ 577.67
or Best Offer
S$ 38.00 shipping
Only 1 left!
Inficon 724-701-G1 - Refrigerant Sensor
Brand New
·
INFICON
S$ 173.13
S$ 33.25 shipping
New DragerSensor AC 6810595 gas sensor for Drager transmitters
Brand New
·
Dräger
S$ 513.48
or Best Offer
S$ 40.96 shipping
Denova Natural Gas Alarm W/Voice Alert 10 Yr Battery Powered Detector Japan NIB.
Brand New
S$ 104.93
S$ 40.52 shipping
Temtop Handheld Particle Counter Particulate Monitor PM2.5,PM10,TSP, Airing 2000
Brand New
·
Temtop
S$ 526.30
or Best Offer
S$ 65.01 shipping
62 watching
Drager X-am 2500 Gas Detection - Ex/O2/H2S/CO
Brand New
·
Drager
S$ 941.02
S$ 51.99 shipping
12 watching
Industrial Scientific Ventis Pro5 Multi-Gas Monitor - VTS-K1231101101
Brand New
·
Industrial Scientific
S$ 1,048.62
or Best Offer
S$ 65.25 shipping
New Honeywell - Sensepoint XCL Fixed Point Gas Detector (A)
Brand New
·
Honeywell
S$ 244.87
S$ 36.27 shipping
Portable H2 Gas Detector Digital Hydrogen Gas Detector with Range 0 to 1000PPM
Brand New
S$ 416.24
or Best Offer
Free shipping
New FIGARO TGS822 TGS-822 Alcohol Toluene Xylene Organic Sensor
Brand New
·
Figaro
S$ 12.58
S$ 6.72 shipping
Ammonia NH3 Single Gas Detector Monitor LED Display Portable Alert 0-100 PPM
Brand New
S$ 337.50
or Best Offer
S$ 34.98 shipping
ORIGINAL & Brand New Alphasense Oxygen Sensor O2-A2
Brand New
S$ 47.56
S$ 7.00 shipping
111 watching
NEW Marcala CO & Gas Detector
Brand New
S$ 641.85
or Best Offer
S$ 82.04 shipping
1PC ORIGINAL & Brand New Alphasense Oxygen Sensor O2-A2
Brand New
S$ 50.34
or Best Offer
Free shipping
106 sold
5Pcs Brand New Oxygen Sensor 4OXV 40XV 40X-V AAY80-390 Sale
Brand New
S$ 321.82
Was:
S$ 357.59
was - S$ 357.59
or Best Offer
Free shipping
H2 Gas Leak Meter with 0-1000PPM H2 Gas Detector Hydrogen Gas Detector Hydrogen
Brand New
S$ 417.22
Free shipping
5PCS Alphasense O2-A2 Oxygen Sensor apply BW Technologies Gas Alert MicroClip
Brand New
S$ 237.86
or Best Offer
Free shipping
1Pce FIGARO KE-25F3 KE25F3 GS Oxygen Sensor New Japan
Brand New
·
Figaro
S$ 162.30
or Best Offer
S$ 6.30 shipping
75 sold
Dräger Personal Detector Pac 6000 CO Drager Ref #8326369 NEW
Brand New
·
Dräger
S$ 139.91
S$ 33.18 shipping
15 watching
Dissolved Ozone Tester O3 Water Portable Reader Detector Analyzer 0 - 20.00 mg/L
Brand New
S$ 718.86
or Best Offer
S$ 32.09 shipping
RadonScan GQ RadonScan Radon Gas Monitor
Brand New
S$ 140.21
S$ 91.44 shipping
Net Safety Emerson SC311A-100-ASSY Infrared Combustible Gas Sensor
Pre-Owned
S$ 526.78
Free shipping
New CiTiceL 4OXV AAY80-390R Oxygen Sensor 4OXV 40XV 40X-V
Brand New
S$ 46.16
or Best Offer
S$ 6.30 shipping
570 sold
NEW!!! MSA Passport FiveStar Gas Monitor Personal Alarm Sensor Kit
Brand New
·
MSA
S$ 278.45
S$ 167.33 shipping
Only 1 left!
Temtop Air Quality Detector Formaldehyde PM2.5 PM10 TVOC Monitor LKC-1000S+2ND
Brand New
·
Temtop
S$ 237.86
or Best Offer
S$ 60.95 shipping
143 watching
New Listing
Flame Tech BM80-20
Brand New
S$ 89.55
S$ 27.01 shipping
Replacement Flex PCB for BW GasAlertMicro Clip XT / XL Monitor Oxygen O2 Sensor
Brand New
S$ 29.10
Was:
S$ 36.38
was - S$ 36.38
Free shipping
143 sold
Wifi Smart Natural Gas Alarm Sensor Gas Leak Detector bohekeji Tuya
Brand New
S$ 41.95
to
S$ 81.13
Free shipping
41 watching
ABB 261GS Gauge Press Transmitter 261GSUKTNS1
Brand New
·
ABB
S$ 449.30
S$ 60.45 shipping
Fixed Hydrogen Detector H2 Gas Detector with 0 to 1000PPM Sound and Light Alarm
Brand New
S$ 511.27
or Best Offer
Free shipping
RAE Systems HCl-15 4R+ Sensor C03-0952-000 – HCl 15 PPM – Exp 06/2026 – NEW
Brand New
·
RAE Systems
S$ 253.99
or Best Offer
S$ 18.32 shipping
New - Macurco GD-6 Gas Detector & Controller CH4/C3H8/H2
Brand New
·
Macurco
S$ 474.96
S$ 56.57 shipping
New Listing
HONEYWELL HTRAM-V2-W Transmission Risk Air Monitor.
Brand New
·
Honeywell
S$ 76.94
or Best Offer
S$ 31.31 shipping
Ammonia Gas Detector 0-100ppm with Dual Alarm - OSHA Compliant NH3 Monitor Farms
Brand New
S$ 209.81
or Best Offer
S$ 34.32 shipping
1pc CITY AO2 OXYGEN PTB-18.10 AA428-210 oxygen index detection oxygen sensor
Brand New
S$ 69.82
or Best Offer
Free shipping
Honeywell 2106-B-1201 Gas Sensor
Brand New
·
Honeywell
S$ 486.59
Was:
S$ 512.20
was - S$ 512.20
or Best Offer
S$ 32.09 shipping
Chlorine Gas Detector Built-in Pump with Storage Export Function 0-10ppm
Brand New
S$ 898.17
or Best Offer
Free shipping
VOC Gas Detector Portable Volatile Organic Compounds Gas Detector Range 0-100ppm
Brand New
S$ 430.35
Free shipping
1Pce New For M-04 ITG Oxygen Sensor Detector
Brand New
S$ 111.92
or Best Offer
S$ 6.30 shipping
Honeywell Uv Detection Tube For Purple Peeper 113228
Brand New
·
Honeywell
S$ 419.77
S$ 51.86 shipping
MSA Ultima Gas Monitor Remote Sensing Head
Brand New
·
MSA
S$ 419.76
S$ 99.02 shipping
Oxygen Gas Detector Fixed O2 Gas Leak Alarm Monitor Detector with Range 0-30%vol
Brand New
S$ 404.37
or Best Offer
Free shipping
35 sold
6Pcs Alphasense O2-A2 02-A2 Oxygen Sensor For BW Tech Gas Alert MicroClip XT
Brand New
S$ 264.65
or Best Offer
S$ 11.19 shipping
193 sold
Temtop Air Quality Monitor HCHO PM2.5 PM10 TVOC LKC-1000S+2ND & Thermeometer S1
Brand New
·
Temtop
S$ 251.85
or Best Offer
S$ 36.48 shipping
Industrial Scientific Regulator, 0.5 LPM Flow Rate, Mfg# 18100883
Brand New
·
Industrial Scientific
S$ 237.87
S$ 36.07 shipping
Results Pagination - Page 1
1
2
3
4
5
6
7
8
9
10
All Listings
Auction
Buy It Now
Sort: Best Match
Best Match
Time: ending soonest
Time: newly listed
Price + Shipping: lowest first
Price + Shipping: highest first
Distance: nearest first
List View
Gallery View
17,596 results
Sort: Best Match
Best Match
Time: ending soonest
Time: newly listed
Price + Shipping: lowest first
Price + Shipping: highest first
Distance: nearest first
Filter
Brand
Honeywell
MSA
Dräger
Industrial Scientific
Monitor
BW
BW Technologies
Riken Keiki
Figaro
RAE Systems
Bosean
Gastec
Siemens
Bacharach
Macurco
Smart Sensor
NICE
PRO
HF
Atmotube
Condition
New
New other (see details)
Remanufactured
Used
For parts or not working
Price
Under S$ 390
S$ 390 to S$ 600
Over S$ 600
All Filters
