Dual Tone Variable oscillator circuit.
Solid state circuitry.
Reverse Polarity Protection.
Available in Red and White colour.
TALK BACK SPEAKER
4" and 6 watts good quality speakers.
Operating on 100volts o/p voltage from Amplifier.
6 watts Line Matching Transformer.
MANUAL CALL POINT
Dual Red LED indication.
Fast action release switch.
Available in Red and White Colour.