Securityman Door Security Bar with Alarm (Detachable) – 120dB Siren Door Stopper Alarm – Adjustable Jammer & Patio Bar – Strong, Withstands 400lbs – Home Protection

(Loud Detachable Alarm): Keep your own home protected with the integrated 120dB vibration intruder alarm; its loud siren is audible as much as 1000ft, and its detachable design means that you can hang it on any door knob for portable security.
(Adjustable Fit): Our sliding door security bar has 12 adjustment notches that allows it to increase between 18.25″ to 46.50″ to suit various doors and patio doors.
(2 in 1 Door Jammer and Sliding Door Bar): The dual purpose home security bar features easily interchangeable attachments designed for both hinged doors and sliding doors or windows.
(Heavy Iron Duty Construction): The security bar for front door is built from 1/16″ thick iron and engineered to withstand as much as 400lbs of force to assist against kick-ins / forced entries.
(Easy to Use): Arm and disarm your door in a couple seconds. The door jammer security bar simply props underneath your door knob or, for patio doors it slots in at the door tracks.