4010/4020/4110 Series Closers Medeco Key in Knob/Lever BUILT-IN ALARM: Built-in alarm detects

BUILT-IN ALARM: Built-in alarm detects attempts to forcefully enter the door

With a 2 hour factory tested rating

MUL-T-LOCK is a multi-national company that supplies literally tens of thousands of cylinder types to over 100 different markets

3/16" solid steel door and flange

Latch hook sets back 7/16" from base of handle

4010/4020/4110 Series Closers Medeco Key in Knob/Lever BUILT-IN ALARM: Built-in alarm detectsThe 4010, 4020 and 4110 Series are heavy duty closers that meet demands for high traffic installations and each are designed specifically for unique mounting applications. They are UL and cUL listed, meet ANSI BHMA Grade 1 standards and boast 30 year warranties. They feature a standard plastic cover, with optional plated finishes for the cover, arm and fasteners. They also feature the LCN Green Dial spring force indicator, which takes the guesswork