Thanks, updated the post.
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Actually, they silently upgraded these to 800 recently (as they've done with a few other products). See: Zooz 800 Series Z-Wave Long Range XS Open | Close Sensor ZSE41 800LR - The Smartest House
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Just saw that. I stand corrected!!! In my defense, Zooz doesn't make that info easy to find.
Sorry for the confusion I caused!!! Thought I was being helpful, and was the opposite!
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They don't make it easy to figure out when this changes, that's for sure. 
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I see there is an 800LR version of the ZSE42 water sensor too... And they sneakily increased the battery from CR2032 to CR2450 as well (2.5x or so battery capacity).
Gonna have to order a pile of those!
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How big are these, actually? The Amazon page says 1.5 x 1.18 x 1.18. These aren't >1" thick, are they?
more like 1cm thick. just eyeballing it. I can measure if you'd like.
I'd love that. I'll pay by the hour for your time. Oops, less than an hour, so it's free!!
the sensor itself (minus magnetic part) is 1 1/4" x 1 5/8" at its widest point (slightly rounded) and just over 1/2" thick.
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Perfect, thanks very much for taking the time to measure accurately. Just to be a good citizen and pay it forward I added those measurements to the Amazon listing using the Q&A feature.
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I have a boatload of these - probably 40 installed. Got most for either $5 or $9 each. They've mostly been unbelievably reliable... except for 2, which when the (non-rechargable) CR2 battery got low they started to throw bogus open/close events. This wouldn't be much of an issue, except that they are on windows I monitor with HSM, and this happened when I was away (thus it was armed-away). So all of a sudden I started getting HSM alerts for a open/close events on window on the 2nd floor, while I was 2000 miles away. Thankfully with remote admin I was able to just go in and remove that window from HSM. But then a few days later it happened to a different window.
This happened when both devices were at 25% battery, and they'd been in service for nearly 2.5 years. These were still on the original battery that came with the devices.
I've replaced about 30 batteries in these this year (since they are all about 2.5 years old), and most of them have just stopped reporting as the battery got low.
I still love these contact sensors.
The one I want to nominate is the Aqara contact sensor (the "original" not the new Matter version)...it's the smallest I've found since the original Visonic MCT-340 (=high WAF), battery lasts forever, and for me they are completely reliable. But...Aqara doesn't play nicely on all hubs, so that's a bit too much of a caveat to nominate it.
Geeze, Zooz are leading the charge in terms of staying on top the next gen chips and features.
I've had a good experience with the Ring contact sensors. Batteries are still at 100% after at least 3 years.
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any contact sensor with temperature sensor ?
I like the original Smartthings COntact Sensor but having issues with it on C8 hub.
SO looking for an alternative...
I have moved your post to this topic. If you read the instructions in the first post of the topic you originally posted in, you will see that it is intended for nominations only and not discussion, with discussion being linked to for here instead:
As for the actual question, many contact sensors these days have a built-in temperature sensor. This includes some of the nominated products, including at least the Iris and Xfinity models. But I also haven't heard of problems with the ST sensor on the C-8. You may want to make a separate topic about your particular problems, since if you're dealing with a larger Zigbee network problem, it may come back regardless of what contact sensor you use.
Beyond some mentioned there, the Centralite 3323-G (3-series door/window sensor) does temperature and is made by the same OEM as the (nominated) Iris v2 sensor that has long been discontinued. I might also suggest the current-generation SmartThings Multipurpose Sensor, but it normally costs more and doesn't sound like you'd use any of the other features it offers.
Moved the above post here since it had already been nominated.
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First, you have to note which version you are referring to.
Mine are all v2 (2016) and have been retired from active use because of poor battery life with CR2450s. I was getting 9-14 months battery life in a location where the door was opened about once a month.
The newer v3 ones (now branded Aeotec) still use the same batteries.
And I don't generally need vibration and tilt in a contact sensor, so why pay for that extra cost?
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I have a mix of v2 and v3, but mine all last over a year on one CR2450 battery without any issue. How long do your other contact sensors last? I do wish I could find decent rechargeable 2450 batteries.
I bought my sensors at £20 in sales, so ok value I think even if I only use them for contact and temperature. But I find the vibration pretty useful as I use it as an alert for if someone is tampering with my sash windows or doors, or if someone is knocking on the door. I dont have a tilting garage door, so have only used the tilt on my letter box flap, which works fine.
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