My original plan was to buy some 433 sensors add to home assistant use to trigger events and build up into an alarm.
Thinking now flip it on its head buy an alarm with 433 sensors and use OMG to trigger to trigger other events.
Something like this
US $59.99 25%OFF | Awaywar WIFI GSM home Security Burglar smart Alarm System kit Tuya 4.3 inch touch screen APP Remote Control RFID Arm Disarm
Anyone have any recommendations