Compatible with Panasonic KSU’s. Includes speaker microphone, and circuit board.
Includes circuit from Panasonic KX-T7775 (amplified door station). Adjustable volume control for noisy environments. Includes Panasonic power module (mounts by KSU), speaker, mic, and circuit board
MODEL 500-VIK – High performance version using Viking E-40 intercom. System uses “half-duplex” communication, allowing for high speaker and microphone volume.
MODEL 500 -TES2
Model 500 with Telephone Entry System (TES2) is no longer offered (Aug 2014)