Yes (technically mine is model 750, whereas that is model 750A). Twas the recommended model from the Duracool folk years ago, to help detect their refrigerant (which is butane/propane derived.) I've tested it against propane, and methane (as well as seen it work with gasoline.)

On Jul 23, 2011, at 12:54 AM, Karl wrote:

> That model shows as a refrigerant detector?
>
> On 7/23/2011 12:18 AM, Kim Brennan wrote:
>> The model I have is<http://www.allgasdetectors.com/products/hv111.shtml>
>>
>> Yours is less expensive, but I haven't regretted my purchase either.
>>
>> On Jul 22, 2011, at 10:58 PM, Karl Mullendore wrote:
>>
>>> This is the one I use, less expensive and very accurate:
>>>
>>> http://www.amazon.com/UEI-CD100A-Leak-Detector-Combustible/dp/B000HHTY7Q
>>>
>>> I've been using it even more for the occasional home appliance repair task.
>>> Just today I replaced an oven valve in a friend's gas oven, after she
>>> detected a faint gas smell. No way to use soapy water there, the gas was
>>> leaking from the nozzle. A few years ago I used it to also diagnose multiple
>>> loose connections on the same oven, where the local GE appliance 'repairman'
>>> told her to buy a new stove because 'everything was leaking'.
>>>
>>> Karl
>>> www.westyventures.com
>>
>>