DO I need to buy two of these? Or do they come in sets of two?
177811
They come with two straps and a cinch bag to store them in. Only cause for concern was the box they shipped in wasn't closed at all, glad they made it my house without falling out in delivery.
2019463
No, just one. I'd recommend to buy two 49403 3"x3" as 2"x2" is too small to make sense.
233658
It is an individual item. If you need two as I did, you will need to purchase two.
1728167
You have to order two! I misunderstood and thought they came in a pair, so I only ordered one. Oops!
272193
Amazon sells them in a series of different quantity sets. Choose the one you need or buy several small quantities.
1983444
You do not need to purchase two. If your system only has one sensor that's all you need. In my case, the water sensor failed and this item replaced it perfectly. My system's original air sensor is still working fine and I expect it will for a long time as it is sheltered from the elements.
1025078
The set comes with 2, but if you need more I would contact the seller directly.
1832217
no, more than one are available now. you should buy two, they're that good.
1161872
Hello, When I purchased this it came as 1 unit so if you need 2 you will have to order 2. hope this helps.
245147
It's really just one- there are two attached to each other, but you have to have the whole set
269043
Yes , you will need one per side! They are pricey but very nice. I love mine!
186567
They are sold individually. If you are looking for a set, you need to order two.
398029
There are two, they are the same part number though. So it doesn't matter if which goes where. Just get a quantity of two only the positioning matters.
1952966
if you purchase one they come as a pair. one for the wall, and one for the thing you are mounting.
1699048
You can buy them either way. Taped together or as single battery in which case you have to buy two.
1893900
Yes, they do indeed come in a pair. Be sure not to overtighten the mounting bracket. The screw sockets may break.
1398187
You will need to buy two, it only comes with one piece. I have had great luck with mine so far.