Knock knock prop with light sensors green (correct) and red (not correct) comes with power supply and mag lock with 3 ft of wire for mag lock.
Knock Knock prop with light sensors
With 48 hours of receiving item you must call to let us know there is a defect when received.
1) Try and fix over phone with design team
2) Ship new part if needed.
3) Have returned and ship you new product
Once order is confirmed the product will ship out within 7-21 days