IRIS Presence Sensor: Provides an active infrared presence as follows.

a. IRIS sensor provides two curtains of infrared and shall detect

    stationary humans or objects within the sensing pattern.

b. Infrared curtains shall have angle adjustment capability, and

    shall be capable to reach within 2 inches (51 mm) of the face of

    the sliding door.

c. Sensor shall have a narrow or wide sensing pattern, determined
    by a user-selectable lens. Pattern size adjustments made by

    field-masking a lens shall not be acceptable.

d. Sensor dimensions 10.3” (L) x 2.2”(H) x 1.43” (D)

e. Sensor provides a 6 feet 6 inches (1.98 m) wide (wide lens)

    pattern when mounted at 7 feet (2.13 m), and a 3 feet 3 inches

    (1 m) wide pattern when using the narrow lens.

f. Sensor shall have a minimum self-adaptation time of 30 seconds

   that enables the sensor to learn permanently changed

   environments.