Alexa
Door Sensors
Alexa know doors sensors as contact switches and as of writing this I have been unable to trigger an Alexa routine with a door sensor. My work around has been to use IFTTT to trigger Alexa
Tuya Door Sensor
That works with Alexa
This sensor is a little bigger than the Broadlink Door Sensor but it has the advantage that it works perfectly with Alexa without any need to use any other cloud server.