The Von Duprin 040073 HDSI Conversion Kit converts a compatible 4-foot 33A Series mechanical panic device to include a Hex Dogging Security Indicator (HDSI). The indicator provides a visual indication of whether the exit device is dogged or undogged, allowing the door's dogging status to be checked at a glance.

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Manufacturer: Von Duprin
Part Number: 040073
Product Name: HDSI Conversion Kit 4'
Product Type: Conversion Kit
Device Length: 48-inch
Primary Function: Converts a compatible 33A Series device to an HDSI configuration
Application: Retrofit compatible 4-foot 33A Series mechanical panic exit devices
OEM Part: Yes