Short product description:
The ABUS Smartvest wireless door chime and alarm unit provides acoustic and optical indoor signaling for security systems. Operating on an 868 MHz frequency with a range of up to 100 meters, it features 5 selectable sounds, including 4 doorbell tones and 1 alarm tone, reaching volumes up to 80 dB in 3 adjustable levels. Powered by AA batteries, it includes automatic daily supervision, low battery alerts, and blue LED status feedback, making it ideal for dependable indoor security alerts.