The Alarm Lock 732X28 Double Door Strike is a heavy-duty commercial replacement keeper specifically designed for compatible Alarm Lock Sirenlock and alarmed panic exit devices installed on pairs of doors.

Featuring a durable cast aluminum construction, 628 / US28 satin aluminum finish, adjustable nylon latch insert, and surface-mounted design, the 732X28 provides reliable mechanical engagement between an alarmed exit device and the inactive leaf of a double-door opening.

Unlike a standard single-door strike, the Model 732 installs on the inactive door leaf and receives the locking mechanism mounted to the active door. This configuration allows compatible Alarm Lock exit devices to secure a pair of commercial doors without relying on a conventional frame-mounted single-door keeper.

The adjustable black nylon insert allows installers to fine-tune engagement with the exit device latchbolt. Proper adjustment helps keep the active door tightly latched while reducing excessive movement and rattling.

The Model 732 also incorporates a protective rub plate arrangement that helps protect the inactive door edge from contact with the locking mechanism during normal operation.

Designed for commercial maintenance, repair, and replacement applications, the Alarm Lock 732X28 is an ideal choice for facilities servicing existing Alarm Lock 250, 700, and 80 Series alarmed exit hardware.

Its satin aluminum clear anodized finish coordinates with commercial aluminum doors, storefront entrances, hollow metal doors, and compatible Alarm Lock exit devices.

This listing is for the double-door strike / keeper only. The complete alarmed exit device, locking assembly, and operating cylinder are sold separately.

Key Features and Benefits

Double-Door Exit Device Compatibility

• Designed for compatible Alarm Lock double-door exit installations.

• Mounts to the inactive leaf of a pair of commercial doors.

• Provides a receiving point for the locking mechanism on the active door.

• Supports proper mechanical engagement when correctly installed.

• Suitable for new installations and replacement hardware projects.

• Manufacturer-design accessory for Alarm Lock commercial exit devices.

Compatible Alarm Lock Models

The manufacturer identifies the standard Model 732 for:

• Alarm Lock 250 Series: Alarmed panic exit locks with paddle-style operating hardware.

• Alarm Lock 700 Series: Alarmed panic devices with push bar and channel assemblies.

• Alarm Lock 80 Series: Compatible alarmed exit security hardware.

Compatibility Note: Alarm Lock identifies Model 732M for certain 260 and 710 Series exit devices and Model 735 for the 715 Series delayed-egress device. Verify the exact hardware model before ordering.

Adjustable Nylon Latch Insert

• Integrated black nylon insert.

• Adjustable positioning for proper latch engagement.

• Helps reduce door movement when latched.

• Minimizes rattling caused by excessive clearance.

• Provides fine adjustment during installation and maintenance.

• Helps maintain proper locking alignment.

Protective Rub Plate

• Protective plate arrangement for the inactive door edge.

• Helps minimize scuffing caused by contact with the latchbolt.

• Designed for the manufacturer's double-door installation configuration.

• Accommodates properly prepared beveled commercial door edges.

• Supports reliable operation of the compatible exit hardware.

Durable Commercial Construction

• Cast aluminum keeper construction.

• Designed for commercial exit hardware applications.

• Satin aluminum finish.

• Suitable for compatible metal and wood door installations.

• Surface-mounted design allows straightforward replacement.

• Manufacturer-specific dimensions and mounting arrangement.

Mechanical Operation

• No electrical power required for the strike.

• No wiring or battery required.

• Does not contain electronic components.

• No independent audible alarm.

• No programming required.

• Works mechanically with the existing Alarm Lock exit device.

Technical Specifications

How the Alarm Lock 732X28 Works

1. Double-Door Installation

The Alarm Lock exit device is mounted on the active door leaf. The Model 732 keeper is positioned on the inactive door, directly opposite the locking mechanism.

2. Door Closing

When the active door closes, the exit device locking mechanism aligns with the double-door keeper.

3. Mechanical Locking Engagement

The locking mechanism engages the Model 732 keeper, securing the active door against the inactive leaf.

4. Adjustable Latch Position

The black nylon insert can be adjusted to help maintain secure engagement and minimize excessive door movement.

5. Emergency Exit Operation

When the connected Alarm Lock exit device is activated, its locking mechanism releases according to the device's normal operation, allowing the active door to open.

6. Alarm Operation

Any audible alarm function is controlled by the installed Alarm Lock exit device. The Model 732 itself contains no electronic alarm components.

Typical Commercial Applications

Retail Stores and Shopping Centers

• Double-door rear emergency exits

• Commercial service entrances

• Stockroom exit doors

• Monitored exterior door pairs

Warehouses and Distribution Centers

• Warehouse emergency exits

• Employee access door pairs

• Shipping and receiving entrances

• Commercial service openings

Schools and Educational Facilities

• Gymnasium exit door pairs

• Auditorium exit openings

• Maintenance entrances

• Secondary building exits

Hospitals and Healthcare Facilities

• Service corridor double doors

• Monitored building exits

• Maintenance department entrances

• Institutional door hardware replacement

Commercial Office Buildings

• Double-door emergency exits

• Rear building entrances

• Commercial service door pairs

• Security-monitored openings

Industrial and Government Facilities

• Restricted service doors

• Industrial building exits

• Commercial security installations

• Existing alarmed panic hardware maintenance

Replacement and Maintenance Applications

The Alarm Lock 732X28 is recommended when an existing compatible double-door installation requires replacement of a worn, damaged, or missing keeper.

Common maintenance situations include:

• Damaged strike or keeper housing.

• Missing or damaged nylon adjustment insert.

• Door rattling caused by improper latch engagement.

• Excessive wear on the receiving surfaces.

• Damage from repeated door operation.

• Replacement of existing Alarm Lock exit hardware.

• Refurbishment of an existing commercial door opening.

Before replacing the keeper, inspect the door alignment, hinges, inactive-leaf securing hardware, latchbolt, and mounting surfaces.

Replacing the keeper will not correct problems caused by significant door misalignment or a defective exit device.

Product Components

The Alarm Lock Model 732 double-door strike installation arrangement includes:

• Model 732 double-door keeper assembly

• Adjustable black nylon insert

• Protective rub plate

• Appropriate mounting fasteners and related hardware for the installation configuration

Important: Verify the exact contents of the current factory package before ordering. The compatible exit device, cylinder, alarm assembly, and additional door hardware are not included.

Installation Information

The Alarm Lock 732X28 is designed for installation on the inactive leaf of a compatible double-door opening.

1. Verify Hardware Compatibility

Identify the existing Alarm Lock exit device and confirm that the standard Model 732 keeper is correct.

2. Inspect Door Alignment

Confirm that the active and inactive doors close properly, that the locking mechanism is positioned correctly, and that the inactive leaf is adequately secured.

3. Position the Keeper

Use the manufacturer installation template to locate the proper mounting position on the inactive door.

4. Install the Protective Rub Plate

The manufacturer specifies a rub plate to protect the inactive door edge where the latchbolt makes contact. For the documented 1-3/4-inch door configuration, the rub plate is installed using a prepared through-hole and the specified fastener arrangement.

5. Mount the Double-Door Keeper

Use the manufacturer-specified mounting screws for the door construction. Wood and hollow metal door installations require different fasteners.

6. Adjust the Nylon Insert

Close the door and engage the exit device. Loosen the insert retaining screw and slide the nylon insert against the latchbolt until the door is tightly latched without excessive rattling.

7. Verify Door Operation

Test the completed opening to confirm:

• Proper door closing and locking engagement.

• Reliable release of the exit device.

• Correct clearance between the door leaves.

• No excessive rubbing or binding.

• Proper audible alarm operation when applicable.

• Compliance with required emergency egress functions.

Important Installation Notes

• Designed for compatible double-door applications.

• Normally installed on the inactive door leaf.

• Not a universal strike for unrelated exit devices.

• Not a substitute for the Model 730 single-door keeper.

• Not interchangeable with the Model 735 delayed-egress keeper.

• Verify Model 732 versus 732M compatibility.

• Proper inactive-door securing hardware may be required.

• Fire-rated openings must use compatible, approved hardware and installation arrangements.

• Always follow the appropriate manufacturer drilling template.

Why Choose the Alarm Lock 732X28?

The Alarm Lock 732X28 Double Door Strike provides a reliable replacement solution for commercial facilities using compatible Alarm Lock alarmed exit devices on pairs of doors.

Its durable aluminum construction, adjustable nylon insert, protective rub plate arrangement, and manufacturer-specific mounting design help maintain proper mechanical engagement and dependable door operation.

For commercial door technicians, building maintenance departments, and security hardware installers, the Model 732 offers a practical way to service compatible double-door exit assemblies without replacing the entire alarmed panic device.