Limit Device – Fall Prevention2023-06-21T13:57:10-04:00

Approved for use in New York City

Detachable Restrictor
Part #: SDR

The detachable restrictors are designed for use with Securistyle Sterling and Storm hinges; for applications with 5/8 inch or 3/4 inch typical stack height. This restrictor is designed to securely limit the window to a specific length and it can be released with a special key for maintenance or window cleaning by authorized personnel only. The SDR is non handed and made from austenitic 304 stainless steel. The SDR comes in lengths of 4, 6, 8 or 10 inch limits. Please refer to the pdf file or details below for the correct sizing information.  Two SDRs should be attached per vent.

Part Number


Overall Length

Boxed Quantity

880 009 8046

4″ Detachable Restrictor

5.9″ (150mm)


 880 010 8046

6″ Detachable Restrictor

7.87″ (200mm)


 880 011 8046

 8″ Detachable Restrictor

7.87″ (200mm)


 880 012 8046

10″ Detachable Restrictor

9.84″ (250mm)


Requires: 854 001 release key sold separately.


New York City Approval Letters

Intellectual Property Notice: This drawing and the design represented herein are the intellectual property of The Bronze Craft Corporation, Nashua, NH, USA. Reproduction of this document or the design depicted herein, without express written consent of The Bronze Craft Corporation is prohibited. Copyright 2023, All Rights Reserved.