The PerchPopper is an agricultural-grade electronic device that conveniently keeps your Best Nest Box cleaner by keeping your hens from sleeping and dirtying the nest box at nightHere's how it works-  When you go out to collect the eggs or any time after your hens are done laying for the day, rotate the perch bar up into the closed position.  With the perch bar in this position, it will block access into the nest box and your hen's will not be able to enter the nest box and sleep in there over night and make a mess of it with their manure.   The PerchPopper contains a strong magnet that will hold the perch bar closed until a specific time that you choose.  Any time after dark, but before your hens wake the next day will work.   At this time, the magnet will release the perch bar automatically and it will rotate down so that your nest box will be open and ready for your hens to enter the next time they are ready to lay.FeaturesRuns on only 2 AA batteries lasting over a yearMagnetic latch allows one-handed operationAgricultural/rugged constructions