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๐จ Detect with confidence, protect with precision.
The FD-91-RED Gas Leak Detector by Forensics features a Japan-made methane-calibrated catalytic sensor housed in shock-resistant ABS, capable of surviving 10-foot drops. It offers a large color LCD with temperature readout and detects a wide range of gases including natural gas, propane, and alcohols. Designed for inspectors, technicians, and engineers, it comes with a 7-year sensor life and 1-year limited warranty, making it a durable and reliable tool for professional-grade gas leak detection.







| ASIN | B08WPVGW7X |
| Alarm | Visual |
| Best Sellers Rank | #59,952 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #44 in Gas Detectors & Alarms |
| Brand | FORENSICS DETECTORS FD |
| Built-In Media | Cloth Case and Batteries (3 x AAA) |
| Color | RED |
| Customer Reviews | 4.5 out of 5 stars 297 Reviews |
| Enclosure Material | ABS |
| Item Dimensions D x W x H | 1.2"D x 2.4"W x 6"H |
| Item Weight | 11.2 ounces |
| Manufacturer | FORENSICS DETECTORS |
| Mfr Part Number | AUB08WPVGW7X |
| Model Number | FD-91-RED |
| Operating Humidity | 90 percent |
| Power Source | Battery Powered |
| Product Dimensions | 1.2"D x 2.4"W x 6"H |
| Product Style | Modern |
| Sensor Type | Catalytic |
| Style | Modern |
| UPC | 300389770632 |
| Unit Count | 1.0 Count |
M**S
Works great, sensitive, descrete readings, easy to use
This little meter works great. Used it to pinpoint a tiny natural gas leak at the back of a range, probably since it was installed two years ago. Well worth it. Appears sensitive (picked up natural gas at a level below what my wife and I could smell), has a nice digital readout, simple to operate. My wife and I would very occasionally smell a trace of gas near the range, but could not pinpoint it. The majority of the time we could smell nothing no matter how hard we tried, and assumed it was associated with the small amount of gas that would escape before the burners lit. I grew suspicious, and bought this meter. Immediately it detected the hotspot was where the range met the wall at the back. I pulled out the range, and the hose and valved looked new and in good shape. Further detective work with the meter narrowed it down to the connection at the valve. I unscrewed the hose and found that the installers didn't use tape or pipe thread compound! Added gas pipe tape, screwed everything back together, and all is good as confirmed by the meter. Nice product!
J**N
Worked Perfectly to detect a gas leak
I had a slight gas leak from an oven which I was trying to locate. There was sometimes a faint smell of gas in the house. I could smell it from the back of the oven but I couldn't determine, using my nose, if it was a lose connection or a sticking valve. Originally I bought a cheap gas detector from the PANGAEA brand for $25. This had a range of 0 - 10,000 ppm but it's sensitivity was terrible. I zeroed it outside the house but the only gas it would detect was if I switched a burner on. This Forensics detector is amazing. I zeroed it outside the house again. As soon as I bought it inside the house it registered 70 ppm. It was sensitive enough that I could hold the sensor over the various connections and pin down the leak to the valve going to the oven and not the broiler. It's 4x the price but it works. The ability to zero the readings, switch the sensitivity between high and low and to switch the buzzer off are useful. It's small and feels good in the hands with the rubber finish. I wish the display was a bit brighter and I don't like that the battery compartment is held in place by a screw. This isn't going to be used very much so I don't want to leave the batteries in it all the time. Having to find a screwdriver to open the compartment is an inconvenience.
I**R
Easy to use and detect gas leaks
It was able to confirm the leak I thought I was smelling, however it was quite slow in response and hard to pinpoint the exact source. The display is nice and easy to read, and the instructions are pretty straight forward.
S**E
Gas leak detector
This gas leak detector works very well
R**S
Muy util
Muy util para revisar las instalaciones de gas en casa.
M**.
Extremely useful, detected a leak that PSE&G did not detect in 2 attempts! (Tips at end)
(see Tips at end) I purchased this because we smelled gas in the basement, but PSE&G could not detect it with their meter. I calibrated it and it was detecting gas *everywhere* inside. That made me skeptical, so I put it to the stove burner (running but not lit) and it pegged high. I put it outside and it went back to zero. So I felt like it was working. After checking the whole house, I isolated the highest readings to the gas water heater. I did not see the pilot tube corrosion because it was under the tube not on top. I called PSEG again, another guy shows up and commented the Forensics meter is "too sensitive to be useful". Well again, his meter didn't pick up anything in the house. I bring him to the water heater and his meter is STILL not getting anything (!). I showed him 2 places I was getting very high readings, the thermostat and the exhaust up top. After like 10 minutes, he visually locates the corroded pilot tube . Long story short it got fixed and now my Forensics meter reads ZERO all around the house including the water heater. Despite my concern it was accurate the whole time. I have decades of experience with high-end electronic test equipment. My expectations were low for this being only $100. But this meter proved itself against the big boys, it may not read the exact PPM, but it's a useful relative indicator and you can trace a leak with it. I'm sure this will come in handy again. TIP 1- based on the reviews of people breaking it, I am VERY careful with it. It's weighted kind of awkward due to the top heavy sensor so just treat it like it's a Champaign glass. I carry it from the tube so it's balanced. TIP 2- make sure you calibrate it outside where there's zero gas TIP 3- natural gas rises and it's shocking how much that tiny leak filled the house with detectable gas! Do not be surprised if you get readings far away from the source of the leak!
P**T
A worthwhile addition to my toolbox
This product is great for checking my kegerator for R290 leaks and made the job easy and safe. I used it to repair my commercial kegerator which needed a re-charge of R290 refrigerant. R290 is purified and dried Propane gas and it is important to do a leak test with the detector before, during and after recharging. This was a quick repair/recharging and I saved a lot by buying this rather than calling out a repair person. It was the most expensive part of the kegerator repair, but the detector is well made and I am sure will give many years of service. It's Amazing how sensitive it is to very small amounts of explosive gas. I tested it on the BBQ and even a quick 1/2 second twist of the control to release gas was detected by this unit. Thanks!
P**O
got to use it once.
I spent a little extra to have this device in my inspection belt and the quality seemed worth it until the second time I went to pull it out when I realized that the metal tip had unscrewed itself and the sensor had fallen out. Pretty bummed to have wasted nearly $100 for something that is now useless. So much for spending a little extra to have a reliable tool...
K**B
Perfect
Works well
H**A
Not durable!
The forensic detector failed in less then 2.5 months. Very disappointed!
Trustpilot
1 month ago
2 weeks ago