What is the diameter of the extension tubing, I would like to order a longer one?

Tubing is 1/8 inch ID and 1/4 inch OD silicone. Thank you.

Will this device measure levels of Pentane at floor height?

No, this unit measure EX LEL combustibles in the EX LEL or explosiveness and safety purposes. It seems you need something more sensitive, in the PPM range.

Can this detect pure hydrogen?

I've never actually tried mine on pure hydrogen, but it has an LEL sensor which is supposed to detect all combustible gasses. It works by heating a little element on the inside. If the element is exposed to combustible gas, it gets hotter, and that indicates to the machine that combustible gasses are present. Any combustible gas should trigger the sensor. LEL is an abbreviation for Lower Explosive Limit, so any potentially explosive gas should be sensed by the machine. Having said that, I would suggest testing it in the presence of a small amount of hydrogen first, just to be sure. You don't want to risk your life on this if you're not certain.

Can the combustibles reading (% lel) be converted via a correction coefficient to get a reading in ppm for specific chemicals such as toluene or nmp?

Please see Dr. Koz video answer.

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

4 Gas Monitor by Forensics | Built-in Pump Multi Gas Meter | O2, CO, H2S, LEL | Color Display & Graphing | USA NIST Calibration | Computer Data Logging |

Product ID: 172286902

Details

Alarm
Vibration
Brand
FORENSICS FD
Color
Black Yellow
Item Weight
0.9 Pounds
Material
ABS
Operating Humidity
85 percent

⛽4-gas detection (O2, CO, H2S, LEL)

💾1200 alarm data logs

📊Color display + graphing

€ 1208.09

Duties & taxes included

In stock

Sold byAmazon CroatiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Croatia.

Secure transaction

Description

🚨 Stay ahead of danger with the ultimate 4-gas monitor — safety never looked this smart!

PUMP IT UP - Integrated pump with 4-foot probe for versatile, reliable gas sampling in hard-to-reach areas.
DATA DRIVEN SAFETY - Stores up to 1200 alarm records for comprehensive incident tracking and analysis.
SEE MORE KNOW MORE - Vibrant color screen with graphing for intuitive, real-time gas monitoring.
PRECISION YOU CAN TRUST - USA NIST traceable calibration ensures pinpoint accuracy every time.
BUILT TOUGH FOR THE FIELD - Rugged ABS casing with anti-slip grip, waterproof, dust-proof, and explosion-proof.

The Forensics 4 Gas Monitor is a professional-grade multi-gas detector featuring electrochemical sensors for Oxygen, Carbon Monoxide, Hydrogen Sulfide, and Combustibles (LEL). It boasts USA NIST traceable calibration, a vibrant color display with graphing capabilities, and stores up to 1200 alarm records with computer data logging. Built tough with waterproof, dust-proof, and explosion-proof ABS housing, it includes a built-in pump and 4-foot probe for versatile sampling. Ideal for professionals demanding reliable, accurate, and data-driven gas detection.

Specifications

ASIN	B07WKC4FTV
Alarm	Vibration
Best Sellers Rank	#186,009 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #276 in Multi Testers
Brand	FORENSICS DETECTORS FD
Color	Black, Yellow
Customer Reviews	4.4 out of 5 stars 37 Reviews
Enclosure Material	ABS
Item Dimensions D x W x H	1.2"D x 2.6"W x 5.1"H
Item Weight	14.4 ounces
Manufacturer	FORENSICS DETECTORS
Mfr Part Number	FD-600-4GAS-UK
Model Number	FD-600-4GAS
Operating Humidity	85 percent
Power Source	Battery Powered
Product Dimensions	1.2"D x 2.6"W x 5.1"H
Product Style	modern
Sensor Type	Electrochemical
Style	modern
UPC	300389770045
Unit Count	1 Count

Reviews

R**A

This is a great tool

Great tool. And the company is very helpful if you have questions. Highly recommend.

26.03.2026

E**A

Good quality analyzer

The analyzer works as intended, and customer support was invaluable and solved my questions promptly. Also assisted with the purchase of the calibration gas and valve. Overall, the meter was a good investment, and I get results within a minute.

8.05.2025

M**S

Buy it!

Fantastic tool for spot checking.

5.03.2026

H**Y

Top notch meter and first class support

This is one of the nicest meters I've ever purchased. Seller support is remarkable with knowledgeable replies from a live person on a Sunday afternoon. If you need reliable gas detection and expert level support this is the meter and the company to do business with.

8.01.2023

R**N

Beware that this unit does read to the tenths.

This unit will not read to the tenths as advertised. It will only read in integers (1,2, etc..). In order to get a unit that will read to the tenths for H2S, they substituted a H2S detector instead of this 4 gas which was cheaper. They refund me the difference in the cost. The units work well in the field.

12.07.2024

A**X

Excelente Gast Detector

Best Option value and quality, excelent costumer service. We had bought about 15 units and never got a problem.

8.05.2025

K**D

H2S does not register

2, different tested did not register H2S when testing with testing bottle

26.09.2025

N**.

Good

Useful and handy

18.01.2026

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Meera L.

Smooth transaction and product arrived in perfect condition.

3 weeks ago

Anjali K.

The product quality is outstanding. Exactly what I needed for my work.

1 month ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.