A robust and sophisticated wired wall mounted doorbell with its own internal transformer, for direct mains connection. It can also be powered from an external transformer connected to the mains.

• Supplied with 17 CD quality sounds (listen to the sound samples below by clicking on the sound icon).
• Loudness up to 86dB, with rotating volume control.
• Front door / back door operation, with alternate chime sounds for each bell push button.
• Internal transformer.
• Can be powered via an external 12 V, a/c 1.5 amp, mains transformer, [ 7770 ]
• Silence button to allow the chime to be silenced conveniently.
• Front opening panel for sound choice and adjustment.
• Extremely robust German design.
• Can be connected in parallel to a 2nd wired chime unit, for 2 bell operation.

Specifications :

•Dimensions - 164mm x 190mm x 51mm. (6.5" x 7.5" X 2" approx).
•Complete with internal transformer to connect to the mains
•Can be powered by an external, 8V, a/c, 1 amp mains transformer.
•Colour, silver sides with clear perspex front on silvered background.
•Front door - back dooroperation , with second bell push button.
•Sound Level dB@1M, 86db.
•Special alarm function with emergency call tone for special situations
•No of polyphonic tones available, 17.
•Mute function.
•Please note, this doorbell is not suitable for use with illuminated bell push buttons
•Operating temperature range for all chimes is 5°C to + 40°C.

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Grothe Croma 231 Electronic Wired Doorchime with Internal Transformer