Linear 212iLM-AL Indoor/Outdoor Mullion Mount Keypad

Mullion-Mount Backlit Keypad for Indoor/Outdoor Access Control

The 212iLM-AL from Linear is a compact, vandal-resistant mullion-style keypad with a sleek aluminum finish, designed for both indoor and outdoor access control applications. With backlit hardened keys, 120-user capacity, and built-in doorbell functionality, this keypad offers reliable performance in low-light, high-traffic, or weather-exposed environments. The 212iLM-AL mounts directly to mullion-style door frames or flat surfaces without requiring a backbox, making it ideal for retrofits and tight-space installations.

Key Features

• Aluminum Finish – Durable, modern look with weather-resistant enclosure
• 120 User Codes – Supports up to 120 programmable PINs
• Mullion Mount Design – Slim profile fits standard door frames; no backbox needed
• Backlit Hardened Keys – Visible in low-light and built to withstand heavy use
• Integrated Doorbell Relay – Triggers external chimes or devices on press
• 1–2 Amp Relay – Main relay supports electric strikes, maglocks, or gate triggers
• Surface Mount – Easy installation on flat or mullion surfaces
• Indoor/Outdoor Rated – Weather-sealed for all-season operation
• Conformal Coated Electronics – Protected against moisture and corrosion

Technical Specifications

• Model: 212iLM-AL
• Operating Voltage: 12–24V AC/DC (auto-adjusting)
• Current Draw: 53 mA @ 12VDC, 108 mA @ 24VAC
• Relay Outputs: Main relay: 2A @ 30V; Doorbell relay: 1A @ 30V
• Operating Temperature: -20°F to 130°F
• Dimensions: 6.48" H × 1.71" W × 1.13" D
• Installation: Surface mount (no backbox required)
• Also Known As: Linear part number 0-231344

Conclusion

The 212iLM-AL combines durability, design, and function in a compact keypad built for professional access control. With a vandal-resistant build, conformal-coated electronics, and intuitive mullion mounting, it’s a reliable choice for secure entry points in both commercial and residential environments. Always refer to your system requirements to ensure compatibility.