Great sensor, too bad Taylor no longer makes this ...
590837
Great sensor, too bad Taylor no longer makes this model. Uses AA batteries rather than the AAA's which require frequent replacement.
1451575
Updated my 5 stars to 1 star. It worked wonderfully but the sensor stopped working after we moved. I now have cat pee on my bed.

Update 2.0 I've removed the toilet lid and mounted the sensor to the front of the water tank. Hopefully our cats will trigger the hand sensor with it being closer.

Update 3.0 Having the sensor closer was fine for the past couple years. However, the unit completely stopped working with the solid red battery light on.
3114334
I live in the alley in a not so great part of town in a garage apt. The first night I lived there someone tried to break in. Since then I had a dusk to dawn light put in, exterior motion lights and got these great little sensors that go with the Wireless Alert & Security System base receiver. I got mine at Radio Shack several years ago. 6 or 7 years, in fact, and it has worked since then. When someone crosses the field of view the sensor housing lights up green and a loud buzz goes off in my bedroom. I cant tell you how many times I've caught people downstairs in my carport and attempting to break open my front door, which would be all but impossible, because of a steel bar I have propped up beneath the door knob that extends down to the concrete floor.

HOWEVER, like the reviewer below said, the range that it picks up motion is questionable. It DEINATELY picks up exceptionally well in the day light but at night not nearly as well. Maybe 15 feet or so. For a while it wasn't working well at all and I found out the 4 double AA batteries had worn down. The batteries seem to last forever but newer batteries mean a wider range. Also they can get little cob-webs in the sensor hole which affects motion detection as well as bugs and stuff.

Unfortunately Radio Shack where I purchased this system (it was pretty expensive then) no longer sells the modules. I need another one because I accidentally ran over one with my car. :(
My house is Fort Knox and this is DEFAINTELY (along with a small outdoor vid camera) is a huge part of my home security system.
360192
The Sensor is o.k., but Resetprocedure for Honeywell Gascontrolunit is missing. Also, the sensor is much too sensitiv , turned out the controller at Floorcleaningsolutions and paint etc.
855280
Great replacement sensor for our LaCrosse "Weather Channel" weather stations. We've had to replace them because of damage from accidental  exposure to precipitation. Just be sure you follow the directions for battery insertion to a T and you should have no difficulty syncing. I highly recommend&nbsp;<a data-hook="product-link-linked" class="a-link-normal" href="/La-Crosse-Technology-TX29U-IT-915-MHz-Wireless-Temperature-Sensor/dp/B000TUCK2W/ref=cm_cr_arp_d_rvw_txt?ie=UTF8">La Crosse Technology TX29U-IT 915 MHz Wireless Temperature Sensor</a>
3827506
This speed sensor works great.  I think it is unfortunate that Polar designed this component without changeable batteries.  You must completely replace it after a few years.  Bad design on great product.

Amazon was fast with shipping on product as specified.  If I could replace the old batteries, I'd give this 5 stars.

Thanks!!
2078415
I purchased these back up sensors in July of this year and installed them in August. At the time of installation, my backup sensor warning  went away and I was happy with the product.  Now it is December and last month the sensor warning came back on.  I have not been able to contact the company yet but I would like a replacement set to see if there was a fluke with my set.  They should last longer than 6 months.
4058238
I had a great Heath Zenith sensor, but when I had to replace it the new HZ unit had almost no sensitivity.  Looking around I found this, and I have mixed results with it.  My sensor is a good 20' up above the garage and needs to detect motion up to 50' away.  The original HZ unit did that no problem.  This unit is good to about 30-35'  It is also more difficult to trigger- perhaps its detection pattern is not so fine grained.  It does work enough to keep but if I find a better one I'll replace it.  There are some very good ideas here.  The adjustment between 24 hours and "dark" is cool, but when cranked all the way over to "dark" it actually triggers while there is still quite a bit of light out.  Not a fatal flaw, but a bit surprising given all the trouble to make this flexible and adjustable.  The adjustment for timeout could have some spots marked for popular time periods, like 1 minute and 5 minutes; it takes a while to hunt around and find the right spot.  The "test" mode during the first 5 minutes is cool but only tests sensitivity, not timeout- a bit of a nuisance.
It is overall usable, but given how high end it appeared that they were trying to be with this product, it could certainly be better.
4113393
Other comparable lights usually come with three dials that is adjustable for sensitivity, darkness, length of light intervals . They are not reliable or easy to tamper with .  This one comes without any dials and is automatic from day one. All you need to do is mount it and it charges up until it is ready to go. It is a smart device that gives no hassle !  It only turns on for a minute and add another minute if necessary when motion is still detected  . I mounted it rather high  at about 12 foot level and the motion sensor needs to be redesigned to be more broadly senstive vertically (up and down) I still think that the motion sensor is technologically dated because it has been the same for decades.. Cant someone come up with a better and smarter motion sensor ?? It has its lmits which irritrates me somewhat.  I test it by walking around at all angles and find blind spots even with my arms waving. Maybe extra motioin sensors can be added to narrow down the angle and increase senstivity in parallel or something. I could appreciate 360 degree motion sensors sometimes. as well as upwardly and downwardly.  Engineers have to be more creative instead of droning on..

about two years later, the plastic lens covering the motion sensor cracked up or is sabotaged  without any replacement that I know of around .. It seems easy to replace but that very common part is not even made widely available as a replacement part even at hardware stores.. What gives?  What do they expect them to ..last forever? Nah!
2318291
I loved the clock when I first got it about 6 years ago.  I live in New England so the sensor is exposed to all temperatures. However, I placed the sensor in the windowsill outside the window, between the window sash and the screen.  For the most part, it was not exposed to the elements (maybe only driving, sideways rain) nor to direct sunlight because it's a 2nd floor window under an overhang.  It measured the temperature pretty accurately compared to smartphone apps.  My only complaint is that you cannot expect more than a 2-3 year lifespan out of these remote sensors, even if they are sheltered from direct exposure from the elements.  It always seems to happen when the batteries die.  I bring it indoors, replace the batteries, and it simply refuses to reconnect to the main clock unit.  The clock and unit were between $35-$40.  However, the sensor alone is $20.  This feels like deliberate failure design on the part of LaCrosse to keep you coming back for more sensors through the years.  I can't be sure, but I have replaced this remote sensor unit twice and it just died again.  I think I am going to search for an alternate product.  Why not?  For about 30% more I can get a brand new clock and, hopefully, a more robust sensor unit.  I'm sure the technology has, hopefully, improved since then.
839589
I have a Sigma PC15, which I love, and the transmitter stopped working a couple months ago. I probably should upgrade, but this was a much cheaper way of getting more life out of my trusty PC15.
307058
I love my Taylor Thermometer.  Call me crazy but I had not ever had a meat thermometer and after I got the Taylor I realized that I was sauteing my chicken  breasts too long and was beginning to dislike chicken!!  This is true!  I am sure everyone has a thermometer but if not, please get one and I think you will like the Taylor.
15580
I had a similar (vintage like me) Taylor brand meat thermometer that I used extensively for approx. 30 years. It was dropped, baked, accidentally immersed, scrubbed and it never failed me. My adult daughter and I were cooking Thankgiving dinner and she noticed my thermometer had recommended temperature markings that were different than the numbers she knew. I was not aware they had changed these safety standards over the years. No prob, I thought, I will simply get a new thermometer ... and I did. This one about 2 weeks before Christmas. What a mistake and disappointment.

When I got the new one, I threw the old one away. Although it still worked perfectly and had kitchen patina for days, I didn't want to donate it and have another home cook lead astray by the antiquated markings on the face. This new thermometer worked OK the first time. I then put ithe probe part in a coffee cup of soapy water to soak the probe and wiped the face with my dish rag and hit it wuick with low pressure water to rinse as I have done for years. The body took on water and the clip that slides to mark target temp popped off in the sink... Not much I could do about it, damage done... So I dried it and put it away. Now, here I am approx 6 weeks later. I tried to use it yesterday. The dial is not working and the clip has popped off again. My awesome old one is gone and this one is garbage. I bought a Taylor brand refrigerator thermometer on the same day and it is dead too. I'm guessing Taylor is just coasting on their name. And reputation. Sadly, I just ordered another brand, we'll see.
3267197
The sensor is trash. The gauge works fine. The sensor died at 91 days. It's stuck reading ~240 ohms no matter what temp the fluid is. Considering their warranty is 90 days, I doubt I'll have any luck getting them to send me a new sensor. Also, there's only 1 nut included for the sensor when it needs 2 unless they expect you you tighten the sensor wire down to the rubber center of the sensor body. Either they left one nut out of my kit, or they don't provide enough for proper mounting. I do like the kit, but it needs some help from a hardware store and a decent sensor.
323767
I gave it 4 stars. All I know is that it made my check engine light stop coming on. The sensor itself is easy enough to install but in my truck [2003 Toyota Tacoma] it's hard to remove the old rusty nuts on the old sensor since it's been exposed to the elements under neath the truck on the exhaust pipe for years. I'm guessing it's the stock sensor. In my case I had to remove the passenger seat because the sensor passes from the outside of the vehicle into the cab and the connection is under the carpet of the passenger seat. But, I don't mind doing preventive maintenance. I've seen this exact sensor listed elsewhere for as much as 3 times the price. I'm sure I saved a lot of money in labor cost by doing it myself. It was a different number sensor than the one I removed but both were Denso. Maybe they don't make the old sensor anymore but bottom line is it works.
1245950
My 8-year old one stopped working, but the base unit continues to work fine.  Debated just dumping everything and getting a new weather station, but glad I didn't.  This sensor works great, setup was easy.
100620
Got this sensor as an add on to a Viper 350 plus alarm sensor. Onboard shock sensor was not quite enuff to cover my Chevy Tahoe. Hook up was fast and easy. Has great sensitivity and covers my whole vehicle, from kicking the front wheel to tapping on rear hatch. would have gave it 5 stars, but it took me a minute to find the right screwdriver to adjust the sensitivity on it...  :)