AcuRite Wireless Weather and Intelli-Time Clock Station

I have 4 of them -- upstairs bedroom- downstairs kitchen - basement den and garage. I MADE AN ERROR though-- I put up 2 of the outdoor sensors-- 1 in the front and 1 in the back of the house -- wrong. ONLY 1 outdoor sensor is necessary and I hung it in a covered outdoor area but in open air to sense the outside temp. with 2 I was getting mixed signals-- but 1 did the trick and all 4 indoor receivers read the same outside temps-- but still record the varying indoor temps-- upstairs-downstairs- garage are usually different. The key is using a high quality battery [ I use Duracell copper tops] for the outside / inside items so you get strong signals all year round -- cheap batteries won't last or work very long as the outdoor sensor sends a signal frequently. I put new batteries in outside before winter and they last until summer for me. The indoor units usually last a whole year. GREAT gift idea too. Batteries are not included so buy good fresh ones!

When I first loaded the batteries it gave some really off temp results with the interior temp showing 6 degrees too high and the exterior temp showing 12 degrees too high. Then the exterior transmitter stopped transmitting (or the interior unit stopped receiving). I took the batteries out and repeated the process 2 more times with the same results. I was about ready to give up and return it but decided to try reloading the batteries one more time. This time it worked just fine with temp readings both inside and outside being with a degree of actual. I've since placed the exterior unit in the bilge of my boat (to monitor the effectiveness of the bilge heater during winter freezes). It's about 30' from where the inside unit is located and has been functioning perfectly for the last 3 weeks. I would have given this a 3 star rating because of the initial difficulties encountered trying to get it to function properly. I bumped it up to 4 star because of the great price. I now hope it lasts for a good while.