Grothe ELEKTRONIK-GONG CROMA 100A

17 melodies & alarm function - Choose from 17 high-quality polyphonic melodies, including classic two-tone and three-tone tones, Westminster and more beeps. In addition, channel 2 can be switched between melody and alarm sound - ideal for home, apartment, office or practice. Individually adjustable up to 86 dB - The volume can be adjusted continuously up to 86 dB and ensures a clearly audible signalling. Thanks to double call differentiation, you can immediately see whether visitors are ringing at the front or back door, for example. FLEXIBLE POWER SUPPLY & REPAIR - Operation optionally with 8-12V AC/DC, potential-free contact or batteries. This makes the electronic door bell ideal for new buildings, renovations and existing bell systems. A parallel connection with other gongs or electromechanical bells is also possible. Modern design and long battery life - The satin acrylic front in silver/grey gives the CHROMA 100A a high-quality look. The practical mute (SILENCE), battery warning indicator and low standby consumption allow a service life of up to 3 years when battery operated. GROTHE - YOUR EXPERT IN BUILDING TECHNOLOGY SINCE 1892: With over 130 years of experience, GROTHE stands for continuous development. Our goal: to further improve your safety and comfort through innovative solutions in building technology.