ElitechRefrigerant Leak Detector, CLD-100 Freon Leak Detector Car HVAC Halogen Refrigerant Leak Detector CFCs HCFCs HFCs

This device works! It’s a dream if you’re trying to find a leak in a charged A/C system. In under 2 minutes, this device verified that my car’s under hood a/c piping had no leaks but found an elusive leak in the evaporator core that (because it’s hidden behind a baffle) was not visible to a uv dye test. The manual is a bit messed up (it incorrectly refers to a “siren” as indicating a leak) but the device itself is absolutely simple to use — its like a geiger counter for refrigerant leaks (when the probe comes near a leak it starts beeping faster). If you need to find where a partially charged ac system is leaking refrigerant, you need this amazing device!

Worked perfect on my truck and my neighbors car. Even has a small ultra violet light in case you also want to add dye . Found my leak and I don't need to dump a can in every month. Worth the money.

Detected frion in my fridge. We got a new fridge based on this.

Honestly I haven't used it. but seems to be as advertied

For the price this seems to be a decent product but, sadly, I have a R134A system with a slow leak and it could not find it. But if you remove the cap from one of the service ports it readily detects the residual refrigerant under the cap from an inch or two away so it clearly works.It's important to read the instructions fully. It calibrates to the ambient environment when you first turn it on. So for maximum sensitivity you should turn it on outdoors well away from any sources of refrigerant. Some of the negative reviews seem to be from people who didn't understand how to use it. For one thing it's normal for it to steadily beep all the time about twice per second but some apparently concluded that made it defective.The instructions also mention the sensor will eventually wear out or become unstable so consider this a throw away tool but, for the price, that's reasonable enough. With what commercial techs charge this tool could easily pay for itself if it leads to a DIY repair or saves you from replacing the wrong components. HVAC and auto A/C service is a licensed and hence rather protected industry with often very high prices for the actual labor and materials involved. So a DIY diagnosis is worth a try. There are lots of helpful videos online.

bought because my old H10 no longer works. Didn't want to spend 600 to replace .since I am retired after50 +.years and only needed for one job .works as it should

Did not work for me.

I had one of these, spent $300 for it.I got this $20 sniffer two weeks back. It works better than my $300 sniffer. It makes me look very professional. Saves me time. I used to bubble the lines, to find leaks. Never again.Follow the beep.It says it will last 24 hours, which is a lot of sniffing. For $20 ????? Will always have a new extra waiting. This and an amp meter I just bought for very low amps, are a MUST have for guys in the APpliance Repair business.Thanks - Chuck - Appliance Technician - Hot Springs Ar