Wired Door/Window Contacts with easy HA integration

Anyone aware of any wired door/window contacts that are easily integratable with HA?
I have built a small shed and need 2 for windows and 1 for a door.
I don’t want to go for battery/wireless ones because of the cold, the battery will not last.
I am aware of Konnected (I use it for the main house) but it looks like their v1 stuff is “sold out” and $200 for the v2 stuff is too much for what I need.

You could use something like this reed switch connected to a GPIO pin on an ESP8266 module running ESPHome (just use the GPIO binary sensor). This would integrate with HA over WiFi, but the 8266 could be powered from USB so no batteries.