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Gas Detection

Portable single-gas and multi-gas monitors, replacement sensors, calibration gas and kits, batteries, chargers and accessories, mainly RKI Instruments plus MSA. Bayshore also services RKI monitors: we calibrate, repair and rent RKI instruments and stock the sensors and calibration gas to match each model. Shop Gas Detection products from Bayshore Safety & Industrial Supplies. Nationwide shipping; in-stock items ship same day when ordered by 9 AM Pacific.

How often should a gas monitor be bump tested and calibrated?
Bump test before each day's use to prove the sensors respond; calibrate at the manufacturer's interval, typically every 90 to 180 days, or whenever a bump test fails.

Which 4-gas monitor should I buy?
For confined space entry a 4-gas monitor reading oxygen, LEL, carbon monoxide and hydrogen sulfide is standard, such as the RKI GX-2009 or GX-3R. Use Build Your Monitor on our site to configure sensors, pump and charger for your application.

Browse by type: Batteries & Chargers · Calibration Kits & Calibration Gas · Gas Monitor Accessories · Gas Monitor Replacement Parts · Portable Gas Monitors · Sensors

Products in Gas Detection (showing 100 of 882): Air Systems International Air Systems CO-91NS Replacement Carbon Monoxide Sensor – CO91NS · Draeger Draeger Accuro Detector Tube Hand Pump – 6400000 · Environmental Express Environmental Express 37 mm MCE Air Sampling Cassette, 0.8 Micron - 50/Box – ENVCU37080 · MSA MSA ALTAIR 4X / 4XR / 5X Wall Charger – 10087913 · MSA MSA ALTAIR 4X / 5X Calibration Cap – 10089321 · MSA MSA ALTAIR 5 / 5X Maintenance Kit – 10114949 · MSA MSA ALTAIR 5X Multi-Gas Detector Kit - LEL, O2, CO, H2S – 10116926 · MSA MSA ALTAIR 5X Pump Inlet Dust Filter - 5 Pack – 808935 · MSA MSA ALTAIR 5X Sampling Line · MSA MSA ALTAIR 5X Sampling Probe · MSA MSA ALTAIR io 4 Calibration Cap – 10220388 · MSA MSA ALTAIR io 4 Connected Multi-Gas Detector - LEL, O2, CO, H2S – 10245598 · MSA MSA ALTAIR Pump Probe Coiled Tubing – 10153073 · MSA MSA Galaxy GX2 Receipt and Label Roll – 10126138 · MSA MSA Gas Miser Demand Calibration Regulator - Model RP – 10034391 · MSA MSA Polyurethane Sampling Tubing - 50 ft – 10153105 · MSA MSA Water Stop Filter - 10 Pack – 801582 · RKI Instruments RKI 5-Port Multi-Unit AC Adapter 100-240 VAC for GX-3R & GX-3R Pro Charging – 49-0134 · RKI Instruments RKI 5-Unit Charger Adapter with Cables & Connector Bar for GX-3R & GX-3R Pro – 47-5102 · RKI Instruments RKI AC Adapter 100-240 VAC for GX-3R & GX-3R Pro Charging, 49-0133 – 49-0133 · RKI Instruments RKI Alkaline Battery Pack BUD-3R without Alligator Clip for GX-3R Pro, 49-1626 – 49-1626 · RKI Instruments RKI Alkaline Battery Pack Cover with Gasket for GX-2012 and Gas Tracer – 49-1616RK-01 · RKI Instruments RKI Belt Clip Assembly with Screws for GX-Force, 13-0130 – 13-0130 · RKI Instruments RKI Calibration Adapter for GX-3R Pro, 81-1193 – 81-1193 · RKI Instruments RKI Calibration Adapter for GX-3R, 81-1192 – 81-1192 · RKI Instruments RKI Calibration Cap for GX-2001 and GX-2009 – 81-1107RK · RKI Instruments RKI Calibration Kit for GX-3R & GX-3R Pro – CO/CH4/O2, 103 L Cylinder, 81-GX3RCO – 81-GX3RCO · RKI Instruments RKI Calibration Kit for GX-3R & GX-3R Pro – CO/CH4/O2, 34 L Cylinder – 81-GX3RCO-LV · RKI Instruments RKI Calibration Kit for GX-3R & GX-3R Pro – H2S/CO/CH4/O2, 116 L Cylinder – 81-GX3RHSCO-116 · RKI Instruments RKI Calibration Kit for GX-3R & GX-3R Pro – H2S/CO/CH4/O2, 34 L Cylinder – 81-GX3RHSCO-LV · RKI Instruments RKI Calibration Kit for GX-3R & GX-3R Pro – H2S/CO/CH4/O2, 58 L Cylinder – 81-GX3RHSCO · RKI Instruments RKI Calibration Kit for GX-3R Pro – CO2 5,000 ppm, 103 L Cylinder, 81-PPA – 81-PPA · RKI Instruments RKI Calibration Kit for GX-3R Pro – H2S/CO/CH4/O2 34 L + CO2 2.5% 34 L – 81-PAB-LV · RKI Instruments RKI Calibration Kit for GX-3R Pro – H2S/CO/CH4/O2 34 L + CO2 5,000 ppm 34 L – 81-PAA-LV · RKI Instruments RKI Calibration Kit for GX-3R Pro – LEL/O2/CO/H2S 58 L + CO2 2.5% 103 L, 81-PAB – 81-PAB · RKI Instruments RKI Calibration Kit for GX-3R Pro – LEL/O2/CO/H2S 58 L + CO2 5,000 ppm 103 L – 81-PAA · RKI Instruments RKI Calibration Kit for GX-3R Pro – O2/CO2 5,000 ppm, 34 L Cylinder, 81-PPA-LV – 81-PPA-LV · RKI Instruments RKI Calibration Kit for GX-3R Pro – SO2/H2S/CO/CH4/O2, 58 L Cylinder, 81-PAC – 81-PAC · RKI Instruments RKI Calibration Kit for GX-6000 – 10 ppm Isobutylene/H2S/CO/LEL/O2, 34 L – 81-6AAX-DLV · RKI Instruments RKI Captive Screw M3 x 8 mm Pan Head Phillips, Stainless Steel, for GX-Force – 10-1133 · RKI Instruments RKI Carbon Monoxide (CO) Sensor ES-1821 for GX-2009, GX-2012 and GX-6000 – ES-1821 · RKI Instruments RKI Charcoal Scrubber Disk CF-A1CP for CO Sensors, GX-3R & GX-3R Pro, Pack of 5 – 33-7132 · RKI Instruments RKI CO (Carbon Monoxide) Sensor ESR-A13P for GX-3R & GX-3R Pro, ESR-A13P-CO – ESR-A13P-CO · RKI Instruments RKI CO-04 Single-Gas Monitor CO with Alligator Clip, 73-0065 – 73-0065 · RKI Instruments RKI CO-04C Single-Gas Monitor CO (H2-comp.) with Alligator Clip, 73-0067 – 73-0067 · RKI Instruments RKI CO2 Infrared Sensor IRR-0409, 0-10% vol, for GX-3R Pro, IRR-0409 – IRR-0409 · RKI Instruments RKI CO2 Infrared Sensor IRR-0433, 0-10,000 ppm, for GX-3R Pro, IRR-0433 – IRR-0433 · RKI Instruments RKI Combustible Gas (LEL) Sensor NC-6264A for GX-2009, GX-2012 and GX-6000 – NC-6264A · RKI Instruments RKI CX-04 2-Gas Monitor CO/O2 with Alligator Clip, 73-0069 – 73-0069 · RKI Instruments RKI DC Adapter with Vehicle Plug & 4 ft Cable, 12-24 VDC for GX-3R & GX-3R Pro – 49-2021 · RKI Instruments RKI DC Adapter with Vehicle Plug & 4 ft Cable, 12-24 VDC for GX-Force, 49-2022 – 49-2022 · RKI Instruments RKI Demand Flow Regulator for 34 L, 58 L, 103 L and 116 L Calibration Cylinders – 81-1054RK · RKI Instruments RKI Dummy Sensor for GX-3R & GX-3R Pro, 65-7004 – 65-7004 · RKI Instruments RKI Filter Retaining Gasket for GX-Force, 07-6064 – 07-6064 · RKI Instruments RKI GX-3R 2-Gas Monitor LEL/CO with 100-240 VAC Charger & Alligator Clip – 72-RI-C · RKI Instruments RKI GX-3R 2-Gas Monitor LEL/O2 with 100-240 VAC Charger & Alligator Clip – 72-RG-C · RKI Instruments RKI GX-3R 3-Gas Monitor LEL/O2/CO (H2-comp.) with AC Charger & Alligator Clip – 72-RD-C · RKI Instruments RKI GX-3R 3-Gas Monitor LEL/O2/CO with 100-240 VAC Charger & Alligator Clip – 72-RC-C · RKI Instruments RKI GX-3R 3-Gas Monitor LEL/O2/H2S with 100-240 VAC Charger & Alligator Clip – 72-RB-C · RKI Instruments RKI GX-3R 4-Gas Confined Space Kit LEL/O2/H2S/CO with AC Charger & Cal Kit – 72-RA-C-59 · RKI Instruments RKI GX-3R 4-Gas Monitor LEL/O2/CO/H2S with AC Charger & Hand Aspirator – 72-RA-C-51 · RKI Instruments RKI GX-3R 4-Gas Monitor LEL/O2/H2S/CO with 100-240 VAC Charger & Alligator Clip – 72-RA-C · RKI Instruments RKI GX-3R 4-Gas Monitor LEL/O2/H2S/CO with 12 VDC Charger & Alligator Clip – 72-RA-D · RKI Instruments RKI GX-3R 4-Gas Monitor LEL/O2/H2S/CO with AC Charger & Carrying Case – 72-RA-C-50 · RKI Instruments RKI GX-3R 4-Gas Monitor LEL/O2/H2S/CO with AC Charger, Cal Kit & Alligator Clip – 72-RA-C-56 · RKI Instruments RKI GX-3R 4-Gas Monitor LEL/O2/H2S/CO with No Charger & Alligator Clip, 72-RA-E – 72-RA-E · RKI Instruments RKI GX-3R LEL/O2/H2S/CO Confined Space Kit with AC Charger – 72-RA-C-59-NGR · RKI Instruments RKI GX-3R LEL/O2/H2S/CO Confined Space Kit with AC Charger & Alligator Clip – 72-RA-C-58 · RKI Instruments RKI GX-3R Pro 2-Gas Monitor CO (H2-comp.)/CO2 % with Alkaline Battery, 72-PSB-A – 72-PSB-A · RKI Instruments RKI GX-3R Pro 2-Gas Monitor CO (H2-comp.)/CO2 % with Li-Ion Battery & AC Charger – 72-PSB-C · RKI Instruments RKI GX-3R Pro 2-Gas Monitor CO (H2-comp.)/CO2 % with Li-Ion Battery & DC Charger – 72-PSB-D · RKI Instruments RKI GX-3R Pro 2-Gas Monitor CO (H2-comp.)/CO2 ppm with Alkaline Battery – 72-PSA-A · RKI Instruments RKI GX-3R Pro 2-Gas Monitor CO (H2-comp.)/SO2 with Alkaline Battery, 72-PSC-A – 72-PSC-A · RKI Instruments RKI GX-3R Pro 2-Gas Monitor CO (H2-comp.)/SO2 with Li-Ion Battery & AC Charger – 72-PSC-C · RKI Instruments RKI GX-3R Pro 2-Gas Monitor CO (H2-comp.)/SO2 with Li-Ion Battery & DC Charger – 72-PSC-D · RKI Instruments RKI GX-3R Pro 2-Gas Monitor CO/CO2 % with Alkaline Battery, 72-PRB-A – 72-PRB-A · RKI Instruments RKI GX-3R Pro 2-Gas Monitor CO/CO2 % with Li-Ion Battery & 100-240 VAC Charger – 72-PRB-C · RKI Instruments RKI GX-3R Pro 2-Gas Monitor CO/CO2 % with Li-Ion Battery & 12 VDC Charger – 72-PRB-D · RKI Instruments RKI GX-3R Pro 2-Gas Monitor CO/CO2 ppm with Alkaline Battery, 72-PRA-A – 72-PRA-A · RKI Instruments RKI GX-3R Pro 2-Gas Monitor CO/CO2 ppm with Li-Ion Battery & 100-240 VAC Charger – 72-PRA-C · RKI Instruments RKI GX-3R Pro 2-Gas Monitor CO/CO2 ppm with Li-Ion Battery & 12 VDC Charger – 72-PRA-D · RKI Instruments RKI GX-3R Pro 2-Gas Monitor CO/SO2 with Alkaline & Li-Ion Batteries & AC Charger – 72-PRC-B · RKI Instruments RKI GX-3R Pro 2-Gas Monitor CO/SO2 with Alkaline Battery, 72-PRC-A – 72-PRC-A · RKI Instruments RKI GX-3R Pro 2-Gas Monitor CO/SO2 with Li-Ion Battery & 100-240 VAC Charger – 72-PRC-C · RKI Instruments RKI GX-3R Pro 2-Gas Monitor CO/SO2 with Li-Ion Battery & 12 VDC Charger – 72-PRC-D · RKI Instruments RKI GX-3R Pro 2-Gas Monitor H2S/CO with Alkaline & Li-Ion Batteries & AC Charger – 72-PNX-B · RKI Instruments RKI GX-3R Pro 2-Gas Monitor H2S/CO with Alkaline Battery, 72-PNX-A – 72-PNX-A · RKI Instruments RKI GX-3R Pro 2-Gas Monitor H2S/CO with Li-Ion Battery & 100-240 VAC Charger – 72-PNX-C · RKI Instruments RKI GX-3R Pro 2-Gas Monitor H2S/CO with Li-Ion Battery & 12 VDC Charger – 72-PNX-D · RKI Instruments RKI GX-3R Pro 2-Gas Monitor H2S/CO2 % with Alkaline Battery, 72-PQB-A – 72-PQB-A · RKI Instruments RKI GX-3R Pro 2-Gas Monitor H2S/CO2 % with Li-Ion Battery & 100-240 VAC Charger – 72-PQB-C · RKI Instruments RKI GX-3R Pro 2-Gas Monitor H2S/CO2 % with Li-Ion Battery & 12 VDC Charger – 72-PQB-D · RKI Instruments RKI GX-3R Pro 2-Gas Monitor H2S/CO2 ppm with Alkaline Battery, 72-PQA-A – 72-PQA-A · RKI Instruments RKI GX-3R Pro 2-Gas Monitor H2S/CO2 ppm with Li-Ion Battery & 12 VDC Charger – 72-PQA-D · RKI Instruments RKI GX-3R Pro 2-Gas Monitor H2S/CO2 ppm with Li-Ion Battery & AC Charger – 72-PQA-C · RKI Instruments RKI GX-3R Pro 2-Gas Monitor H2S/SO2 with Alkaline Battery, 72-PQC-A – 72-PQC-A · RKI Instruments RKI GX-3R Pro 2-Gas Monitor H2S/SO2 with Li-Ion Battery & 100-240 VAC Charger – 72-PQC-C · RKI Instruments RKI GX-3R Pro 2-Gas Monitor H2S/SO2 with Li-Ion Battery & 12 VDC Charger – 72-PQC-D · RKI Instruments RKI GX-3R Pro 2-Gas Monitor LEL/CO (H2-comp.) with Alkaline Battery, 72-PLX-A – 72-PLX-A · RKI Instruments RKI GX-3R Pro 2-Gas Monitor LEL/CO (H2-comp.) with Li-Ion Battery & AC Charger – 72-PLX-C