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I don't have one in my ALON, but I did on my previous airplane , a MAULE. It was a common, household detector about the size of one of those overhead smoke detectors in everyone's house. Advantages include (1) inexpensive and readily available at Home Depot , (2) lightweight and easy to install, e.g., hang it from two small machine screws/nuts on the RH or LH side panels, (3) no wiring or 12 v power needed; they use a 9 v disposable battery which lasts "forever", (4) a "hand held" - type device which shouldn't require any FAA approval. I often just lifted mine off the two screws and took it with me after flight, (5) yellow and green lights and reasonably loud sound for the CO 2 alarm, and low battery, and a test feature. I'd probably put it on the RH side where I could see the lights when flying solo. I never tried to hear the audio alarm with my ANR headset on. Anyway, It's probably worth a visit to a home improvement or hardware store to take a look.
Don Bowen [EMAIL PROTECTED] ============================================================================== To leave this forum go to: http://ercoupers.com/lists.htm Search the archives on http://escribe.com/aviation/coupers-tech/
