Access Sentry

The Access Sentry Series is an audio communication and entry security system. Start with the LEM-1DLS box set, which is complete with a single door station, master station, and power supply. Install up to 3 additional master stations – each allows for communication with the door station and door release control.

Freakishly Reliable

Aiphone is proud to be a rare, two-time winner of the prestigious Deming Prize for quality management and manufacturing processes. Our ISO Certified process and rigorous standards result in some of the most reliable products in the industry. Aiphone products routinely last for years, only being replaced when the application outgrows the system capacity.



  • Calling and 2-way communication with door station
  • Door release
  • Call tone and voice volume control
  • 12~16V AC or 12~24V DC
  • Any LE or LS Series door station is compatibility

Power Source

12~16V AC – use PT-1210N or
12~24V DC – use PS-1225UL


Push-to-talk (simplex)

Door Release

N/O dry contact, 30V AC/DC, 1A (use RY-18L for larger contact rating)

Wire Type

Door Station to Master Station: 2-cond., overall shield – use Aiphone #822202 or #821802
Between LEM-1DLCs: 3-cond., overall shield – use Aiphone #822203 or #821803


Door Station to farthest Master Station: 650′(22AWG), 1,570′(18AWG)


We are your one stop solution for all your security needs.

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