What is the expiration date on the back of the units on these?
492141
The expiration date indicates 2023. That's a 10 year life expectancy for this unit and that is normal replacement period.
492142
That's approximately the date the sensors will start to deteriorate. It will start beeping and keep on so, until you change it out. It will also keep beeping even without a battery for some 3 or 4 days.
492143
The two units I received are dated 2012 Jun 06. I assume the units should be replaced 10 years from that date. I'm going to assume you weren't interested in the date on MY unit but on the NEW unit you were thinking of buying, but I answered anyhow.
492144
Can not answer that. Threw my unit away after only a few months service. One of the sensors failed and unit stayed in alarm.
1530999
I have no idea. The two units I have were installed when my place was built around 2003-2004. Only one has failed so far (about a year ago now). When I replaced it, I didn't bother to take apart the old one to see why it wasn't working.
892242
I can not find a date on them. The markings on the batteries are very small can not read even with magnification
1223243
Look on the top of the box for the expiration date. Don't use beyond that date unless you show with control solution they are still in range.
15826
The expiration date on mine is May of 2016. There is also a batch number. Probably so it could be tracked if there was a recall or somthing. Hope that helps.
456550
I have four of these, all installed since 9/2013. One of the batteries died after about 6 months, which kinda worried me, but the other three are still on the original batteries and still sound loudly when tested. So, 6 months to at least 17 months. These are nice little units, worth a few extra bucks for the small form factor.
1998594
I have received some units with only a little over two years of shelf life left, and some with almost 4 years. I have purchased 5 from Amazon.
1640119
don't know,you'd have to ask the seller.the ones i purchased had an expiration date of 5/2014.
1514786
My expiration date is on the back label, lower right. I don't know any way to find it before you buy it.
908976
Celeste, I currently own 6 of them and they are close to being 6 years old. However, I really don't anticipate they will last forever, I have read several reviews of units lasting as long as 15 years. If mine give out today, it's a cheap investment, and they work...
13156
I ordered mine in the middle of this August and the expiration date on them says 01/16 so it looks like the expiration date is at least 2+ years from the time they were produced.
970200
I don't know because I sent them back - I bought them for the long shelf life, but the expiry date was only months away.
942032
The expiration date is on the bottom of the box as well as on the back of the packaging of each caplet.
529548
Well the expiration date on mines doesn't matter. I bought them last year, so yours should be different.
1710776
The expiration date is not visible in this picture. Look on the back, and on the sides. Good luck.
331515
I purchased these and they worked great. However, I did not look to see what the expiration date was. I installed them about 3 months ago and they are still working great. Hope this helps!
992524
I would guess they are either the dates made or the expiration dates... talk to the company.