La Crosse Technology TX29U-IT 915 MHz Wireless Temperature Sensor

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This spare weather sensor works perfectly like the original part. I would recommend it to anyone whose original sensor is damaged or lost.

Just received this transmitter to-day as an add on to the WS-9611U-IT (Oscar) and sensor I already had.Took about 10 minutes to set up this additional sensor and that was allowing the times for inserting batteries and wait times etc. as called for in the manual. No problem at all. Both sensors are working perfectly. The new sensor transmits from inside my polycarbonate greenhouse, across the patio, through my kitchen window and across to the other side of my kitchen. Signal is perfect and accurate within 1-2 degrees which is the average. Tested this against my other normal outdoor temperature gauges.Great to see what goes on in the greenhouse, outdoors and in the house with just one push of the channel button.Time will tell how long things last but for now I am more than pleased with this entire set up.

First off, heed the warnings from the manufacturer: don't put these in locations where they can get heavily rained on, and don't put them in direct sunlight.I purchased this sensor as an add-on to a LaCrosse Weather Station so I can monitor an additional location. I've had it for a number of months now. This sensor is located in the backyard, attached to a deck underneath an overhang so it doesn't get too wet.I live in a part of the country where the winters are long and harsh. We've had temperatures below freezing for almost two months straight now, with a low of -15F so far this season, and this sensor is still working. If it makes it through May (the end of our winter) I'll be surprised. I'll post an update if I have any problems!UPDATE: Sept 28, 2009 (9 months after original review above): This sensor lasted all winter and summer, despite having snow accumulate on the top during the winter and lows of -15F and winds of 80mph... amazing. Keeping my fingers crossed that I'll have as good of luck this winter too!UPDATE 2: April 24, 2010 (16 months after original review): Sensor still going strong, and still using the original battery! Made it through another long and harsh winter. For the price and considering the weather this sensor has endured, it is an AMAZING value. If I wish to replace the indoor weather station in the future, I will definitely look for one that is compatible with these sensors.UPDATE 3: November 17, 2010 (23 months after original review): I almost feel ridiculous coming back here to update on this product again, but this thing is still working. I just don't understand it! I noticed that the top sometimes has snow on top of it (yes, we just got 20" over the past week), so it isn't as well-protected from the elements as I originally thought... yet it is still working and still accurate! I can't believe that I am gushing over a $15 temperature sensor LOLUPDATE 4: January 28, 2011 (25 months after original review): Well, the batteries in one sensor finally died last month. I replaced the batteries (old and new ones are Duracell Ultras) in both sensors and everything is working great again. On a side note: we had temperatures of -20F over New Year's weekend with wind chills of -51F (its ridiculous and true). Guess what? Outdoor sensor worked fine and was within 1-2 degrees of actual temperatures registered by others in the area using their much more expensive equipment. :)UPDATE 5: December 14, 2011 (3 years after original review): They're still going strong!UPDATE 6: February 1, 2013 (4+ years after original review): Both are still working and still accurate!UPDATE 7: October 12, 2014 (almost 6 years after original review): Someone commented on the review and it made me realize I should update. They're still working fine. I consider this luck at this point. :)

This was a replacement for my old unit. It works well in all temperatures for years. I was thrilled that this new unit was fully compatible with my original and worked immediately I set it up with the original inside unit.