I have used the LaCrosse units for at least 6 years. One indoor receiver and two outdoor transmitters, one of which is at least 100 ft away. When they work they are fine. When batteries need changing it gets kind of annoying because the procedure doesn't make a lot of sense to me. I wish they gave technical information on the system. Richard Vista, CA A -----Original Message----- From: pbs-bounces@lists.ibiblio.org [mailto:pbs-bounces@lists.ibiblio.org] On Behalf Of Kathleen Sayce Sent: Friday, January 20, 2012 2:07 PM To: pbs@lists.ibiblio.org Subject: [pbs] wireless outdoor thermometers Now that I have had a cold frame in operation for more than a year, with wireless outdoor thermometers, I can report on the durability of several brands. Yes, several, due to sequential failures. First to go, and not working at all after 4 weeks, was the Weather Channel thermometer. The indoor unit died a few weeks after the outdoor unit. This is a solar powered unit, so moisture in the wiring of the outdoor unit was suspected. Second was La Crosse. The outdoor unit died a few weeks into its run. The indoor unit still works. I use it to keep track of temperatures on the indoor windowsill, where it sits. Third was an Oregon Scientific unit. This one is still operational a year later. It quit working for a few days midsummer, but came back and has worked ever since. Kathleen Kathleen Sayce ksayce@willapabay.org 360-665-5292