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Linear AK-21 Interior Digital KeypadLinear AK-21 Interior Digital Keypad
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Linear AK-21 Interior Digital Keypad

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The Model AK-21 Interior Digital Keypad is a digital keyless entry system designed for access control applications. The keypad is housed in a rugged, plastic enclosure and is designed to be mounted in a standard single-gang electrical box. The die-cast keys have bright, easy-to-read yellow graphics

Availability: In stock


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Product Description


• Self-contained keyless entry system ideal for airports, hospitals, warehouses, office buildings, parking lots, and many other commercial facilities
• Mounts in a single gang electrical box using security screws; tool included
• Four independent outputs and timers: two form C relays and two solid-state open collector outputs with unique programming per entry code
• Up to 480 programmable input codes of one to six digits each for activating either or both relays
• Two LED indicators show system status
• Key operating features include: door sense input; inhibit input; request-to-exit input; alarm shunt output; timed anti-passback; and keypad lockout
• Rugged metal keys
• Built-in LED courtesy lights
• Tactile and audible feedback
• Includes 4 interchangeable decorative bezels
• Keylock secures keypad to mounting backplate

Additional Information

Additional Information

Manufacturer Linear
Model AK-21
Dimensions 3.0" W x 5.0" H x 3.0" D (76.2 x 127 x 76.2 mm)
Operating Temperature -22° F to +149° F (-30° C to +65° C)
Memory The EEPROM memory retains all entry codes and programming, even without power
Main Relay Form "C" 5 Amps @ 28 Volts maximum
Auxiliary Outputs Form "C" 1 Amp @ 28 Volts maximum
Number of Users 480 Users
Voltage Input 12 or 24 VAC/VDC
Warranty 1 Year Warranty
Weight 1.5000


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