garage doors
chamberlain universal garage door monitor
strong br chamberlain universal garage door monitor strong ul li works with any garage door li li chamberlain garage door sensor monitors up to 4 garage doors with additional sensors cldm2 li li when light flashes red door is open li li fast easy installation ; no tools needed li ul
chamberlain
p if you are a person who usually forgets to close the door the chamberlain universal garage door monitor is a great fit for you . the best thing about this wireless door alarm system is that it works with every garage door and can monitor up to four doors . this chamberlain garage door sensor notifies you if it is open or closed no matter which corner of the house you are in . the mechanism of the device is quite simple . when you leave your garage door open the sensor automatically sends a signal to the monitor and a garage door alarm flashes a red light indicating that the door is open . you can plug this wireless door monitor in any convenient location in your house and installation is minimal . p