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

3G Electric
GASTEC 4HM Gas Detection Tube for Hydrogen Sulphide (H2S), 10-Pack - Gas Detection Tubes For Use In GASTEC GV-100 and GV-110 Pumps
GASTECGas Detection Tubes For Use In GASTEC GV-100 and GV-110 Pumps

GASTEC 4HM Gas Detection Tube for Hydrogen Sulphide (H2S), 10-Pack

The GASTEC Detector Tube: H2S (MPN 4HM) is a gas detection tube for hydrogen sulphide, designed for use with GASTEC GV-100 and GV-110 pumps. It offers a measurement range of 25 to 1,600 ppm and is supplied in a…

SKU 3G-OTH-553167

Brand
GASTEC
Item
4HM Gas Detection Tube for Hydrogen Sulphide
Part Number
4HM
Category
Gas Detection Tubes For Use In GASTEC GV-100 and GV-110 Pumps
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
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

Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

GASTEC
Manufacturer Part Number
4HM
Type
Gas Detection Tube, Hydrogen Sulphide ( H2S ), With Pump, 10 PK
Gas Detected
Hydrogen Sulphide
Measurement Range
25 to 1,600 ppm

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

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

Product Description

The GASTEC Detector Tube: H2S (MPN 4HM) is a gas detection tube for hydrogen sulphide, designed for use with GASTEC GV-100 and GV-110 pumps. It offers a measurement range of 25 to 1,600 ppm and is supplied in a 10-pack. 3G Electric interprets this demand, sources the genuine product, and supports your industrial safety needs across 14 departments, with specialist depth in combustion, pumps, and controls.

Frequently Asked Questions

What is the GASTEC Detector Tube 4HM used for?

The GASTEC Detector Tube 4HM is used for detecting hydrogen sulphide (H2S) in industrial environments. It works with GASTEC GV-100 and GV-110 pumps to measure H2S concentrations from 25 to 1,600 ppm, helping protect workers in oil and gas, wastewater, and chemical plants.

What are the specifications of the GASTEC 4HM detector tube?

The GASTEC 4HM detector tube detects hydrogen sulphide (H2S) with a measurement range of 25 to 1,600 ppm. It is supplied in a 10-pack and is designed for use with GASTEC GV-100 and GV-110 pumps. The manufacturer part number is 4HM.

Where to buy GASTEC 4HM detector tubes worldwide?

3G Electric supplies GASTEC 4HM detector tubes worldwide. We handle full logistics, customs clearance, and delivery to your site. As a global industrial solutions provider, we source genuine GASTEC products and support your safety needs across 14 departments, including combustion, pumps, and controls.

How to use the GASTEC 4HM detector tube with a pump?

To use the GASTEC 4HM tube, break both tips off using the tip breaker on the GASTEC GV-100 or GV-110 pump. Insert the tube into the pump inlet with the arrow pointing toward the pump. Pull the handle to draw a sample, then read the concentration directly from the tube's stain length.

Not sure this is the right part? Photo-identify it→

GASTEC Products

3G Electric supplies GASTEC gas detection tubes for use in gastec gv-100 and gv-110 pumps. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Pump Accessories →Valves & Regulation →Motors & Drives →All Products →

More from GASTEC

View all GASTEC parts →
GASTEC 2HH gas detection tube for carbon dioxide (CO2), with a measurement range of 2.5 to 40%. Designed for use with GASTEC GV-100 and GV-110 pumps. Pack of 10 tubes for industrial safety monitoring in confined spaces, HVAC, and combustion applications
GASTEC
GASTEC 2HH gas detection tube for carbon dioxide (CO2), with a measurement range of 2.5 to 40%. Designed for use with GASTEC GV-100 and GV-110 pumps. Pack of 10 tubes for industrial safety monitoring in confined spaces, HVAC, and combustion applications
GASTEC gas detection tube for chlorine (Cl2), designed for use with GV-100 and GV-110 pumps. Measures chlorine concentrations from 0.08 to 100 ppm. Maximum operating temperature 104°F. Pack of 10 tubes
GASTEC
GASTEC gas detection tube for chlorine (Cl2), designed for use with GV-100 and GV-110 pumps. Measures chlorine concentrations from 0.08 to 100 ppm. Maximum operating temperature 104°F. Pack of 10 tubes
GASTEC 4D is a gas detection tube for measuring hydrogen sulphide (H2S) concentrations in air. It has a measurement range of 0.2 to 200 ppm and is supplied in packs of 10. Designed for use with GASTEC GV-100 and GV-110 pumps, it is suitable for on-site detection in industrial environments such as refineries, wastewater treatment plants, and chemical processing facilities
GASTEC
GASTEC 4D is a gas detection tube for measuring hydrogen sulphide (H2S) concentrations in air. It has a measurement range of 0.2 to 200 ppm and is supplied in packs of 10. Designed for use with GASTEC GV-100 and GV-110 pumps, it is suitable for on-site detection in industrial environments such as refineries, wastewater treatment plants, and chemical processing facilities
GASTEC gas detection tube for measuring water vapor (H2O) concentrations in air or gas streams. Designed for use with GASTEC GV-100 and GV-110 pumps, it provides a measurement range of 0.5 to 32 mg/L. Supplied in a pack of 10 tubes
GASTEC
GASTEC gas detection tube for measuring water vapor (H2O) concentrations in air or gas streams. Designed for use with GASTEC GV-100 and GV-110 pumps, it provides a measurement range of 0.5 to 32 mg/L. Supplied in a pack of 10 tubes
GASTEC 21LA gas detection tubes are used to measure carbonyl sulfide (COS) concentrations in industrial environments. Each pack contains 5 calibrated tubes with a measurement range of 2 to 125 ppm, designed for use with GASTEC GV-100 and GV-110 pumps
GASTEC
GASTEC 21LA gas detection tubes are used to measure carbonyl sulfide (COS) concentrations in industrial environments. Each pack contains 5 calibrated tubes with a measurement range of 2 to 125 ppm, designed for use with GASTEC GV-100 and GV-110 pumps
GASTEC 91LL is a gas detection tube for formaldehyde (CH2O) with a measurement range of 0.05 to 1 ppm. Designed for use with GASTEC GV-100 and GV-110 pumps, it provides spot-check measurements for industrial hygiene, indoor air quality, or environmental monitoring. Supplied in a 10-pack
GASTEC
GASTEC 91LL is a gas detection tube for formaldehyde (CH2O) with a measurement range of 0.05 to 1 ppm. Designed for use with GASTEC GV-100 and GV-110 pumps, it provides spot-check measurements for industrial hygiene, indoor air quality, or environmental monitoring. Supplied in a 10-pack
GASTEC detector tube 103 is a hydrocarbon (C3H4) gas detection tube with a measurement range of 0.05 to 2.4%. Designed for use with GASTEC GV-100 and GV-110 pumps, it is supplied in a pack of 9. Used for monitoring hydrocarbon gas concentrations in industrial environments such as combustion, chemical, and manufacturing facilities
GASTEC
GASTEC detector tube 103 is a hydrocarbon (C3H4) gas detection tube with a measurement range of 0.05 to 2.4%. Designed for use with GASTEC GV-100 and GV-110 pumps, it is supplied in a pack of 9. Used for monitoring hydrocarbon gas concentrations in industrial environments such as combustion, chemical, and manufacturing facilities
GASTEC 101L is a CNHM-type gas detection tube for measuring gasoline vapor concentrations. It is designed for use with GASTEC GV-100 and GV-110 pumps, providing a measurement range of 30 to 2,000 ppm. Supplied as a 10-pack, it enables on-site air sampling in industrial environments where gasoline vapors may be present
GASTEC
GASTEC 101L is a CNHM-type gas detection tube for measuring gasoline vapor concentrations. It is designed for use with GASTEC GV-100 and GV-110 pumps, providing a measurement range of 30 to 2,000 ppm. Supplied as a 10-pack, it enables on-site air sampling in industrial environments where gasoline vapors may be present

Customer reviews

No reviews yet — be the first

Questions & answers

No questions yet — ask us the first