Just to clear something up, You must wire DIRECTLY from Sensor 1-> Sensor 2. There cannot be ANYTHING in between the two, Not even a relay. Not a light, Nothing.
It must go
When placed in line like that where #1 is wired directly to #2, they work together to determine if anything down the line is receiving power, and triggering either will allow power to flow past both.
But, Placing a relay or literally anything else inbetween Motion Sensor 1 and Motion Sensor 2 causes the first to determine if the second receives power and makes it so you must first trigger 1 before 2 can even be triggered- And both must be triggered to power what is further along.
It must go
- Power
- Any relays and such needed to reach the location
- Motion Sensor 1
- Motion Sensor 2
- Any relays needed to reach the door
- Door
When placed in line like that where #1 is wired directly to #2, they work together to determine if anything down the line is receiving power, and triggering either will allow power to flow past both.
But, Placing a relay or literally anything else inbetween Motion Sensor 1 and Motion Sensor 2 causes the first to determine if the second receives power and makes it so you must first trigger 1 before 2 can even be triggered- And both must be triggered to power what is further along.