[Prime] TP-Link Tapo Smart Contact Sensor T110 $16.15 Delivered @ Amazon AU

TP-Link Tapo Smart Contact Sensor, cheapest I’ve seen.

You will need the Hub which is also on prime sale.

This contact sensor works wonderfully with my doors, cabinets and to link integrates well with Homeassistant or also works with their own app which is pretty good.

Part of prime deals