Product Name: Sectional Garage Door Opener, Garage Door Operator 800n, 2.7m Lifting Height, Electric Limit Switch Model NO.: 1011.101B Brand: Safedoor Electric Current Type: DC Driving Type: Electromechanical Structure: Wheeled Motor: 24V Lifting Height: 2.7m Door Size: 12m2 Track Length: 3.5m Trademark: SAFEDOOR Transport Package: Brown Carton Specification: CE/LVD Origin: Hangzhou, China HS Code: 8479899990 Product Description As a powerful sectional garage door opener, it is quiet and stable when operating. Automatic closure function, self-lock function and manual release in case of power failure making it easy for you to use.Features: *Automatic open softly, quiet and stable operation*Automatic closure function setting available*Self-lock in closure position*Manual release in case of power failure*Mechanical limit switch guarantee the accurate lifting distance*The resistance sensitivity encountering obstacles can be adjusted by rotating inching screw*Automatically reverse to open against obstruction in closing*Automatically stop against obstruction in opening*Alarm against illegal breaker*Inner light illuminates for 3-4 minutes when the opener receive signal from remote control*Memory saving function against power failure*Available for connection to safety beam sensor, pushbutton switch, battery backupTechnical parameter:Specification1011.101A1011.101BInput voltage(VAC, Hz)110/220, 50Rated current(A)0.50.7Rated power(W)110150Drive force(N)600800Motor voltage(VDC)24Operation speed(cm/s)12Hold-open time(minutes)2.5Radio frequency(MHz)433.92Lifting distance/height(max) (m)2.42.7Door measurement (max)()912Length of rail track(max)(m)3.23.5Ambient temperature(ºC)-20~+60Revolution(rpm)50Water proof(IP)20 Remote distance (max) m(ft)50(164)