General purpose perimeter alarm switch. Excellent for basement windows, jalousies, vents and other hard to protect openings.

• Two way protection: Sturdy appearance deters intruders. Attempting to remove bar trips PST pressure sensitive switch.
• Fast Installation. Springloaded assembly snaps into window frame. No screw or drilling. Fits 12" to 40+" openings.
• Does not restrict window. Window can be protected while open for ventilation. Bar can be removed as needed.
• Quality Components: PVC telescoping tube assembly. Stainless steel spring. Gold contact snap action switch. 36" armored cable two wire lead.