Brand: Safety Technology International (STI)
Model: STI-6400 Exit Stopper
Type: Emergency Exit Door Alarm
Color: Red
Shape: Octagon
Material: Polycarbonate
Power Source: 9V Battery (included)
Activation: Key-operated On/Off switch
Features: Audible alarm sounds when door is opened
Included: Alarm unit, key, mounting screw, original box
Mounting: Surface mount
Application: Commercial or residential emergency exits
Compliance: Helps prevent unauthorized exit/entry

Keywords: Security, Safety, Fire Exit, Loss Prevention, Industrial, Facility Management, Door Hardware, Alert System, Commercial Grade, Protection, Deterrent, Safety Technology International

please see the pictures for exact measurement and condition.
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