Loading
ACCESS HARDWARE
800-348-2263 About Us
FAQs
Sign In
0 Cart
  • Shop All Products
      • Ilco 5021XSWL-26D-41 Push Button LockAccess Control Systems & Accessories
      • IVES 8302-8 Stainless Steel Pull  w/Plate, 8" Center to CenterAccessories and Filler Plates
      • Dexter DCM1000, FULL,RW/PA, DKBRZ Medium Duty Surface Door CloserDoor Closers and Auto Operators
      • Adams Rite 7160-510-313 Electric StrikeElectric Strikes and Bolts
      • Schlage ND80PDEL/EU SPA 625-C KWY Electrified Cylindrical LockElectrified Locksets
      • Von Duprin EL98EO-F US26D 4' Rim Exit DeviceExit Devices
      • IVES 5BB1 4.5 X 4.5 622Hinges, Pivots and Coordinators
      • Camden Door Controls CM-25/4 Narrow Push Plate SwitchKey Switches and Push Buttons
      • Locknetics WMG1200 MaglockMagnetic Locks
      • Falcon W581CP6D DANE 613 Storeroom Lever LockMechanical Locks, Cylinders and Key Blanks
      • Altronix AL175ULX Power Supply & ChargerPower Supplies and Transformers
      • Schlage MTKB15 Wall Mount With Keypad Mobile Enabled Multi-Technology ReaderReaders, Keypads and Credentials
      • Security Door Controls LR100SGK Electric Latch Retraction KitRetrofit Motor and Solenoid Kits
      • Security Door Controls UR4-8 Universal ControllerSensors, RX Switches, Timers and Intercoms
      • Pemko 158D 36" Saddle ThresholdSeals & Thresholds
      • Von Duprin 040071 33ACDSI Kit 4' US28Healthy Hardware
      • Von Duprin 040071 33ACDSI Kit 4' US28Miscellaneous Hardware
  • Shop All Products
    • All Products
      • Von Duprin 040071 33ACDSI Kit 4' US28Access Control Systems & Accessories
      • IVES 8302-8 Stainless Steel Pull  w/Plate, 8" Center to CenterAccessories and Filler Plates
      • Dexter DCM1000, FULL,RW/PA, DKBRZ Medium Duty Surface Door CloserDoor Closers and Auto Operators
      • Adams Rite 7160-510-313 Electric StrikeElectric Strikes and Bolts
      • Schlage ND80PDEL/EU SPA 625-C KWY Electrified Cylindrical LockElectrified Locksets
      • Von Duprin EL98EO-F US26D 4' Rim Exit DeviceExit Devices
      • Von Duprin 040071 33ACDSI Kit 4' US28Hinges, Pivots and Coordinators
      • Camden Door Controls CM-25/4 Narrow Push Plate SwitchKey Switches and Push Buttons
      • Locknetics WMG1200 MaglockMagnetic Locks
      • Falcon W581CP6D DANE 613 Storeroom Lever LockMechanical Locks, Cylinders and Key Blanks
      • Altronix AL175ULX Power Supply & ChargerPower Supplies and Transformers
      • Schlage MTKB15 Wall Mount With Keypad Mobile Enabled Multi-Technology ReaderReaders, Keypads and Credentials
      • Security Door Controls LR100SGK Electric Latch Retraction KitRetrofit Motor and Solenoid Kits
      • Security Door Controls UR4-8 Universal ControllerSensors, RX Switches, Timers and Intercoms
      • Von Duprin 040071 33ACDSI Kit 4' US28Seals & Thresholds
      • Von Duprin 040071 33ACDSI Kit 4' US28Healthy Hardware
      • Von Duprin 040071 33ACDSI Kit 4' US28Miscellaneous Hardware
  • Manufacturers
  • Industry Solutions
    • Systems Integrators
    • Glass & Glazing
    • Locksmiths
    • Door, Gate & Fence
    • Government
      • Education
    • Healthcare
  • Learning Center
    • ICT Professionals
    • Videos
    • Learn
    • Blog
    • Resources
  • Menu Menu
Create an Account
Sign In
  • Shop All Products
    All Categories
    Shop All Products
    • –
      All Categories
      -
      • Ilco 5021XSWL-26D-41 Push Button LockAccess Control Systems & Accessories
      • IVES 8302-8 Stainless Steel Pull  w/Plate, 8" Center to CenterAccessories and Filler Plates
      • Dexter DCM1000, FULL,RW/PA, DKBRZ Medium Duty Surface Door CloserDoor Closers and Auto Operators
    • –
      All Categories
      -
      • Adams Rite 7160-510-313 Electric StrikeElectric Strikes and Bolts
      • Schlage ND80PDEL/EU SPA 625-C KWY Electrified Cylindrical LockElectrified Locksets
      • Von Duprin EL98EO-F US26D 4' Rim Exit DeviceExit Devices
    • –
      All Categories
      -
      • IVES 5BB1 4.5 X 4.5 622Hinges, Pivots and Coordinators
      • Camden Door Controls CM-25/4 Narrow Push Plate SwitchKey Switches and Push Buttons
      • Locknetics WMG1200 MaglockMagnetic Locks
    • –
      All Categories
      -
      • Falcon W581CP6D DANE 613 Storeroom Lever LockMechanical Locks, Cylinders and Key Blanks
      • Altronix AL175ULX Power Supply & ChargerPower Supplies and Transformers
      • Schlage MTKB15 Wall Mount With Keypad Mobile Enabled Multi-Technology ReaderReaders, Keypads and Credentials
    • –
      All Categories
      -
      • Security Door Controls LR100SGK Electric Latch Retraction KitRetrofit Motor and Solenoid Kits
      • Security Door Controls UR4-8 Universal ControllerSensors, RX Switches, Timers and Intercoms
      • Pemko 158D 36" Saddle ThresholdSeals & Thresholds
    • –
      All Categories
      -
      • Von Duprin 040071 33ACDSI Kit 4' US28Healthy Hardware
      • Von Duprin 040071 33ACDSI Kit 4' US28Miscellaneous Hardware
  • Shop All Products
    All Categories
    Shop All Products
    • All Products
      All Categories
      All Products
      • Von Duprin 040071 33ACDSI Kit 4' US28Access Control Systems & Accessories
      • IVES 8302-8 Stainless Steel Pull  w/Plate, 8" Center to CenterAccessories and Filler Plates
      • Dexter DCM1000, FULL,RW/PA, DKBRZ Medium Duty Surface Door CloserDoor Closers and Auto Operators
      • Adams Rite 7160-510-313 Electric StrikeElectric Strikes and Bolts
      • Schlage ND80PDEL/EU SPA 625-C KWY Electrified Cylindrical LockElectrified Locksets
      • Von Duprin EL98EO-F US26D 4' Rim Exit DeviceExit Devices
      • Von Duprin 040071 33ACDSI Kit 4' US28Hinges, Pivots and Coordinators
      • Camden Door Controls CM-25/4 Narrow Push Plate SwitchKey Switches and Push Buttons
      • Locknetics WMG1200 MaglockMagnetic Locks
      • Falcon W581CP6D DANE 613 Storeroom Lever LockMechanical Locks, Cylinders and Key Blanks
      • Altronix AL175ULX Power Supply & ChargerPower Supplies and Transformers
      • Schlage MTKB15 Wall Mount With Keypad Mobile Enabled Multi-Technology ReaderReaders, Keypads and Credentials
      • Security Door Controls LR100SGK Electric Latch Retraction KitRetrofit Motor and Solenoid Kits
      • Security Door Controls UR4-8 Universal ControllerSensors, RX Switches, Timers and Intercoms
      • Von Duprin 040071 33ACDSI Kit 4' US28Seals & Thresholds
      • Von Duprin 040071 33ACDSI Kit 4' US28Healthy Hardware
      • Von Duprin 040071 33ACDSI Kit 4' US28Miscellaneous Hardware
  • Manufacturers
  • Industry Solutions
    All Categories
    • Systems Integrators
    • Glass & Glazing
    • Locksmiths
    • Door, Gate & Fence
    • Government
      All Categories
      Government
      • Education
    • Healthcare
  • Learning Center
    All Categories
    Learning Center
    • ICT Professionals
    • Videos
    • Learn
    • Blog
    • Resources
  • Menu Menu
Contact Us

We’re Here To Help

800-348-2263
Become a member

Where you’ll have exclusive access to
all the hardware you need.

Apply For An Account
FAQs
About Us
Hover To Zoom
Von Duprin 040071 33ACDSI Kit 4' US28

Von Duprin 040071 33ACDSI Kit 4′ US28

Item Code: VND5105

The Von Duprin 040071 33ACDSI Kit 4' US28 is designed for high use and abuse institution environments, Von Duprin provides security indicator, conversion options for the 98/99 series and the 33A/35A series exit devices. These environments, include schools and hospitals. The security indicators are recommended for the following applications: visual verification and lockdown. The visual verification application reduces the time to tour a facility and ensure that each door is secure with at-a-glance visual verification. The security indicators provide visual verification from inside the room and are ideal for high occupancy areas like auditoriums, cafeterias and gymnasiums. The CDSI/HDSI dogging indicator provides at-a-glance verification of a doors status from inside the room. Visible LOCKED and UNLOCKED indicators show whether the device is dogged or undogged. This feature can be used with Hex key (HDSI) or Cylinder (CDSI) options on various device types: rim, mortise or vertical systems. This particular kit is a 33A cylinder (CDSI ) Conversion Kit 4'. Finish is bright chrome.

List Price: $505.00
Item Code: VND5105
Wholesale Price: Login or Create an Account to see your exclusive rate. To see your exclusive rate, Login or Apply for an account
Access Hardware Supply is dedicated exclusively to serving the needs of industry professionals. If your company doesn’t have an account yet, just click below to apply.
APPLY

There are many factors to consider when choosing the best solution for securing classrooms. Many schools use the traditional classroom lock function. This function was created at a time when there was not a need to lock classroom doors during the school day. However, recent events have led to new recommendations that classrooms be able to lock from inside the room in cases of emergency. The traditional classroom lock function does not meet this need, as it requires teachers to step into the hall to lock the door from the outside. Lockdown is also needed in assembly areas. Key components of the ideal classroom security solution include: Ability to quickly secure the door from inside the room. Solutions that meet ADA and fire and life safety codes, including single motion egress to exit the room. Ability to quickly and easily gain entry from outside the room by school personnel or first responders with keys or credentials. The CDSI/HDSI dogging indicator indicates whether the exit device is dogged or undogged. Available for 98/99 & 33A/35A Series panic devices.

Documentation (View & download PDFs)

Specification Sheet
Von Duprin Security Indicators-ss
Von Duprin Allegion Classroom Security Conversion Kits -ss
Von Duprin 33A-35A Series Exit Device -ss

LEED Statement
Von Duprin (Allegion) LEED Statement

Price List
Von Duprin Price Book

Warranty
Von-Duprin-warranty

  • About
  • Contact
  • Careers
  • FAQs
  • Shipping
  • Returns
  • Promotions
  • GSA
2026 Access Hardware, Inc. All Rights Reserved
  • LinkedIn
  • Youtube
  • Facebook
  • Privacy Policy
  • Terms & Conditions
Scroll to top
Apply For An Account

"*" indicates required fields

STAY INFORMED!

Join the 22,000 industry professionals who receive product news, instructional videos and special offers direct to their inbox.

Are you sure you want to log out?
Confirm logout
Skip to content
Open toolbar

Accessibility Tools

  • Increase Text
  • Decrease Text
  • Grayscale
  • High Contrast
  • Negative Contrast
  • Light Background
  • Links Underline
  • Readable Font
  • Reset