Foss Europe Life smokealarm 230v wireless wave

LIFE smokealarm 230V wireless WAVE with 9 V back-up battery. Interconnection wireless 868 mhz max. 20 pcs., also with 10 year battery model (art. no. 100255) or with wire max. 40 pcs. Hush function. 5 year warranty. incl. battery and mounting bracket...