Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

3G Electric
RFQ CartGet a QuoteSign inSign up
GASCO Calibration Gas: Nitrogen, Disposable, +/-5% Accuracy, CH4/CO/H2S/O2 - Calibration Gases for Portable Gas Detectors
GASCOCalibration Gases for Portable Gas Detectors

GASCO Calibration Gas: Nitrogen, Disposable, +/-5% Accuracy, CH4/CO/H2S/O2

The GASCO Calibration Gas: Nitrogen (MPN 34L-490X) is a disposable calibration gas for portable gas detectors, featuring a mixture of Hydrogen Sulfide 10 ppm with +/-5% accuracy. Designed for use with all OEM gas…

SKU 3G-OTH-549018

Brand
GASCO
Item
Calibration Gas: Nitrogen, Disposable, +/-5% Accuracy, CH4/CO/H2S/O2
Category
Calibration Gases for Portable Gas Detectors
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Technical Specifications

GASCO
Manufacturer Part Number
34L-490X
Type
Disposable, +/-5% Accuracy, CH4/CO/H2S/O2, Calibration Gas
Gas Mixture
Hydrogen Sulfide 10 ppm
Reusability
Disposable
For Use With
All OEM Gas Detectors
Background Gas
Nitrogen
View Full Spec Sheet

Technical Documents

No technical documents available for this product.
Request documentation →
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

GASCO Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The GASCO Calibration Gas: Nitrogen (MPN 34L-490X) is a disposable calibration gas for portable gas detectors, featuring a mixture of Hydrogen Sulfide 10 ppm with +/-5% accuracy. Designed for use with all OEM gas detectors, it uses a nitrogen background gas to verify sensor response across CH4/CO/H2S/O2 channels.

Frequently Asked Questions

What is GASCO calibration gas 34L-490X used for?

This disposable calibration gas verifies sensor response across CH4, CO, H2S, and O2 channels in portable gas detectors. It uses a nitrogen background gas with 10 ppm hydrogen sulfide and ±5% accuracy, compatible with all OEM gas detectors.

What are the specifications of GASCO 34L-490X calibration gas?

The GASCO 34L-490X is a disposable calibration gas with ±5% accuracy, containing 10 ppm hydrogen sulfide in a nitrogen background. It is designed for use with all OEM gas detectors to verify CH4, CO, H2S, and O2 sensors.

Where to buy GASCO calibration gas 34L-490X worldwide?

3G Electric supplies GASCO calibration gas 34L-490X worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to deliver this disposable calibration gas to your facility, ensuring compliance with your gas detection maintenance needs.

How to use GASCO 34L-490X calibration gas for gas detector maintenance?

Attach the GASCO 34L-490X disposable cylinder to your gas detector's calibration adapter, following the manufacturer's instructions. Apply the gas mixture (10 ppm H2S in nitrogen) at the recommended flow rate to verify sensor accuracy across CH4, CO, H2S, and O2 channels.

GASCO Products

3G Electric supplies GASCO calibration gases for portable gas detectors. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion →Pumps & Compressors →Spare Parts →All Products →

More from GASCO

View all GASCO parts →
GASCO Calibration Gas: Nitrogen, Disposable, +/-5% Accuracy, CO2, Calibration Gas, Calibration Gas (MPN X02NI55CP3452F6). Key specifications — For Use With: All OEM Gas Detectors; Background Gas: Nitrogen; Brand: GASCO; CGA Number: CGA 600; Gas Mixture: Carbon Dioxide 45%; Reusability: Disposable.
GASCO
GASCO Calibration Gas: Nitrogen, Disposable, +/-5% Accuracy, CO2, Calibration Gas, Calibration Gas (MPN X02NI55CP3452F6). Key specifications — For Use With: All OEM Gas Detectors; Background Gas: Nitrogen; Brand: GASCO; CGA Number: CGA 600; Gas Mixture: Carbon Dioxide 45%; Reusability: Disposable.
GASCO Calibration Gas: Nitrogen, Disposable, +/-5% Accuracy, CO/O2, Calibration Gas, Calibration Gas (MPN 103L-383B). Key specifications — For Use With: All OEM Gas Detectors; Background Gas: Nitrogen; Brand: GASCO; Gas Mixture: Carbon Monoxide 1,000 ppm; Reusability: Disposable.
GASCO
GASCO Calibration Gas: Nitrogen, Disposable, +/-5% Accuracy, CO/O2, Calibration Gas, Calibration Gas (MPN 103L-383B). Key specifications — For Use With: All OEM Gas Detectors; Background Gas: Nitrogen; Brand: GASCO; Gas Mixture: Carbon Monoxide 1,000 ppm; Reusability: Disposable.
GASCO Calibration Gas: Nitrogen, +/-2% Accuracy, C3H8, Calibration Gas, 105 L Cylinder Capacity (MPN 105ES-176N-1). Key specifications — For Use With: All OEM Gas Detectors; Background Gas: Nitrogen; Brand: GASCO; Gas Mixture: Propane 1%.
GASCO
GASCO Calibration Gas: Nitrogen, +/-2% Accuracy, C3H8, Calibration Gas, 105 L Cylinder Capacity (MPN 105ES-176N-1). Key specifications — For Use With: All OEM Gas Detectors; Background Gas: Nitrogen; Brand: GASCO; Gas Mixture: Propane 1%.
GASCO Calibration Gas: Helium, Disposable, +/-5% Accuracy, N2, Calibration Gas, Calibration Gas (MPN X02HE50CP100053). Key specifications — For Use With: All OEM Gas Detectors; Background Gas: Helium; Brand: GASCO; Gas Mixture: Nitrogen 50%; Reusability: Disposable.
GASCO
GASCO Calibration Gas: Helium, Disposable, +/-5% Accuracy, N2, Calibration Gas, Calibration Gas (MPN X02HE50CP100053). Key specifications — For Use With: All OEM Gas Detectors; Background Gas: Helium; Brand: GASCO; Gas Mixture: Nitrogen 50%; Reusability: Disposable.
GASCO Calibration Gas: Air, Disposable, +/-5% Accuracy, C2H4, Calibration Gas, Calibration Gas (MPN 34LS-62A-0.67%). Key specifications — For Use With: All OEM Gas Detectors; Background Gas: Air; Brand: GASCO; CGA Number: CGA 600; Gas Mixture: Ethylene (25% LEL) 0.67%; Reusability: Disposable.
GASCO
GASCO Calibration Gas: Air, Disposable, +/-5% Accuracy, C2H4, Calibration Gas, Calibration Gas (MPN 34LS-62A-0.67%). Key specifications — For Use With: All OEM Gas Detectors; Background Gas: Air; Brand: GASCO; CGA Number: CGA 600; Gas Mixture: Ethylene (25% LEL) 0.67%; Reusability: Disposable.
GASCO Calibration Gas: Air, +/-2% Accuracy, C3H8, Calibration Gas, 105 L Cylinder Capacity, Cylinder (MPN X02AI99CR150050). Key specifications — For Use With: All OEM Gas Detectors; Background Gas: Air; Brand: GASCO; Gas Mixture: Propane (10% LEL) 0.22%.
GASCO
GASCO Calibration Gas: Air, +/-2% Accuracy, C3H8, Calibration Gas, 105 L Cylinder Capacity, Cylinder (MPN X02AI99CR150050). Key specifications — For Use With: All OEM Gas Detectors; Background Gas: Air; Brand: GASCO; Gas Mixture: Propane (10% LEL) 0.22%.
GASCO Calibration Gas: Air, Disposable, +/-5% Accuracy, C6H14, Calibration Gas, Calibration Gas (MPN 103L-289-5500). Key specifications — For Use With: All OEM Gas Detectors; Background Gas: Air; Brand: GASCO; Gas Mixture: Hexane (50% LEL) 5,500 ppm; Reusability: Disposable.
GASCO
GASCO Calibration Gas: Air, Disposable, +/-5% Accuracy, C6H14, Calibration Gas, Calibration Gas (MPN 103L-289-5500). Key specifications — For Use With: All OEM Gas Detectors; Background Gas: Air; Brand: GASCO; Gas Mixture: Hexane (50% LEL) 5,500 ppm; Reusability: Disposable.
GASCO Calibration Gas: Nitrogen, Disposable, +/-5% Accuracy, NO, Calibration Gas, Calibration Gas (MPN 34L-125-10S). Key specifications — For Use With: All OEM Gas Detectors; Background Gas: Nitrogen; Brand: GASCO; Gas Mixture: Carbon Monoxide 50 ppm; Reusability: Disposable.
GASCO
GASCO Calibration Gas: Nitrogen, Disposable, +/-5% Accuracy, NO, Calibration Gas, Calibration Gas (MPN 34L-125-10S). Key specifications — For Use With: All OEM Gas Detectors; Background Gas: Nitrogen; Brand: GASCO; Gas Mixture: Carbon Monoxide 50 ppm; Reusability: Disposable.