ABUS Secvest 2WAY Wireless siren White

Wireless Indoor Sounder, 868.6625MHz, 90 dB(A) The Secvest wireless indoor sounder is an optional accessory for the Secvest 2WAY. As a purely acoustic signalling unit, it supports the wireless outdoor siren and the alarm panel of the Secvest 2WAY with a 90 dB tone. The sounder and the alarm panel communicate on 868.6625 MHz, a radio frequency that has been specially reserved for security purposes. The wireless indoor sounder can be powered via a batteries or power supply. When using batteries, the service life is approx. 2 years. A weakening battery is indicated at the alarm panel of the Secvest 2WAY and a red LED on the sounder.