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.

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

Product ID: 493677273

Details

Brand
FORENSICS FD
Colour
Yellow
Power source
Battery
Product dimensions
3D x 6.6W x
Style
modern

🌈Vibrant color display + graphing

💾Stores 1200 alarm records

⏱️Instant ON & GO with built-in pump

¥209764

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Description

🚨 Stay Ahead of Danger with the FD 4: Your Ultimate Multi-Gas Guardian

DATA DRIVEN SAFETY - Robust computer data logging stores up to 1200 alarms for comprehensive incident tracking
PLUG PLAY PRECISION - Turn ON and GO with UK-made electrochemical sensors for O2, CO, H2S & LEL detection
CERTIFIED TRUST QUALITY - USA NIST calibration, 1-year warranty, and 100% product testing ensure unmatched accuracy and peace of mind
VISUAL CLARITY AT A GLANCE - Intuitive color display with graphing for quick, confident readings in any environment
BUILT TO BRAVE THE ELEMENTS - Waterproof, dust-proof, explosion-proof ABS housing with anti-slip grip for rugged reliability

The FORENSICS DETECTORS FD 4 Gas Monitor is a professional-grade multi-gas meter featuring a built-in pump and high-precision UK electrochemical sensors for Oxygen, Carbon Monoxide, Hydrogen Sulfide, and Combustibles (LEL). It boasts a vibrant color display with graphing capabilities, USA NIST traceable calibration, and advanced data logging storing up to 1200 alarm events. Designed with rugged ABS housing that is waterproof, dust-proof, and explosion-proof, it ensures reliable performance in harsh environments. Backed by a 1-year warranty and rigorous quality testing, this device is engineered for safety professionals who demand accuracy and durability.

Specifications

ASIN	B07WKC4FTV
Alarm	Vibration
Brand	FORENSICS DETECTORS FD
Color	Yellow
Customer Reviews	4.5 4.5 out of 5 stars (35)
Enclosure Material	ABS
Item Dimensions D x W x H	3D x 6.6W x 13H centimeters
Item Weight	408 g
Manufacturer	FORENSICS DETECTORS
Mfr Part Number	FD-600-4GAS-UK
Model Number	FD-600-4GAS
Operating Humidity	85 percent
Power Source	Battery Powered
Product Style	modern
Sensor Type	Electrochemical
UPC	300389770045
Unit Count	1 Count

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¥209764

Duties & taxes included

In stock

Sold byAmazon JapanDelivered 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 Japan.

Secure transaction

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