Zwave door alarm with keypad?

The alternative is to use multiple devices, which means the cost is going to go up pretty quickly. There are some all-in-one Z wave devices, but they’re only sold as part of specific security systems, and they are not compatible with SmartThings as they have additional proprietary features.

So that means you end up with one keypad device (either the Lowe’s Iris zigbee keypad or a minimote 4 button or an android tablet) +1 siren plus a door sensor.

That still doesn’t give you exit and entry delays, though, because SmartThings doesn’t support them in the official features. Which means you would need to use Core to put everything together.

And as others have mentioned, there still the range issue depending on how far away the shed is.

So I think it might be possible to get the same functionality, but it would be quite a bit of effort and cost to set up.