The Model 3900 is designed for use on light-duty commercial standard and high lift (5 ft. high lift max) sectional doors. Maximum recommended duty cycle: 10 cycles per hour.

LiftMaster 3950 with Photo Eye: Less Downtime. More Work Time. These practical Light Duty Commercial Door Operators are versatile and durable. And with features like optional solar and battery backup options you can rely on these gates to work when you need them, anywhere you need them.