Do you mean that have dry contacts? Because “input from external sources” could mean a lot of different things.
If you just mean have dry contacts, then one model of the Fibaro door sensor is popular for this purpose in the UK.
And there are even several devices available in both the US and the UK which are made specifically for this purpose:
The original, was very popular, but the company has since been bought by one which is targeting professional installers and it is becoming hard to find for DIY
Aeotec Door Sensor Pro (The “pro model“ has Dry Contacts)
This replaces their earlier dry contact sensor. Available in both US and the UK. Uses the series 700 chip, so should have excellent range and battery life. Make sure you get the one that matches your hub frequency, so don’t try to use a US model with a UK hub or vice versa.
The Ecolink door sensor is only available on the US frequency, and is a popular choice. However, be aware that some people have reported that they received individual devices that didn’t have the dry contact screws inside, even though they have the same model number. It’s not clear whether those were different production runs or maybe even counterfeits. (it’s been known to happen.) so I would only buy these from someplace with a good returns policy just in case you get one of the ones without the contacts.
Everspring has a similar model to the eco-link available in the UK. Try Vesternet for that one.
And new for 2020: Zooz has a very interesting zwave S2 module for the US with 3 dry contacts. Zooz provides an edge Driver, for it linked from the product page.
(Popp has announced a similar design for the EU only, the SA01, but while it has been certified I have not yet seen it for sale anywhere.)
Zooz now has several models that have dry contact terminals, all at very good prices and with the newest Z wave features. But only available on the North American frequency. These make a good substitute for the old Mimolite model as long as you are in the US, Canada, or Mexico. Zooz provides edge drivers for most of its devices.
Develco/Frient Zigbee IO module with 4 dry contacts. Available in Europe. @Mariano_Colmenarejo has a very nice custom edge Driver for This, which exposes all 4 dry contacts for use in smartthings routines.
Shelly’s new UNI relay is a really interesting device, probably most similar to the old fortrezz units, but uses Wi-Fi. It’s hard to find in the US, but widely available in Europe. You can also get it shipped to the US by the manufacturer.
If you don’t have a smartthings/Aeotec hub, and want to use the official cloud to cloud integration, check with Shelly to make sure this model is included
If you are looking for something specifically to use with wired security system sensors, like wired window sensors that run to a central panel, there is a system for doing that called Konnected Which has been very popular for this purpose. Contact their support for more information. They do have a cloud to cloud integration, which works with the 2023 smartthings architecture. No SmartThings/Aeotec hub required.
Other kinds of input
On the other hand, if you mean to include devices that can handle an external probe, such as for temperature or moisture, there are several but they are very different from the ones with dry contacts.
The Fibaro. RGBW Controller can accept input from four different analog sensors, and is popular for greenhouse operations. This was popular in the past, but I’m not sure if it still works with smartthings in 2023. It’s no longer on the official compatibility list. Check the forum to be sure.
Thanks for the post! I had the same issue sourcing the Aerotec one.
AHH I never thought this through - one thing i needed was for the sensor to be simply binary. i.e. if I put my output from my traditional motion sensor into a temperature dry contact sensor, it wouldn’t give me a 1 or a 0 it’d give me nonsense.
thanks @xdreamwalker! does it open up to have dry contact input? or did you have to hack the hardware in some way?
I’m in the UK but surprisingly they aren’t too expensive to import from an Amazon.com marketplace seller! over 4 x more than I pay for Xiaomi door sensors, but that’s not the point, they can potentially save me buying the more expensive dry contact bridges like the Mimolite
Hi @JDRoberts was wondering if you could help advise on something.
I got the Universal Sensor and i’m having a real struggle getting it’s output into SmartThings. It’s a fairly complex device for my needs, do you think i’d have a simpler task with the Fibaro Door Sensor? (it’s annoyingly £10 more but I’m willing to pay that for simplicity of configuration)
EDIT: I’ve just seen that the available Fibaro door sensor is now the v2, whereas all posts I can find on this forum are for the v1, do you have any idea if the v2 has dry contacts?