Авто дозвона с голосовым записи

Three alarm methods optional In microcomputuer design ,automatic requirments and functions of seeing ,listening ,recordingand setting. According to requirments of different hosts, select NC,NO or voltage input trigger sigal Save as many as 4 groups of phones or activity phone . Each group has 16digits and 2nd passwords at most Password function . In case of trigger or other situation, you can enter password by directy press keys in electric board and WS stop SOS signal . Use with security fittings or independent sensors all over zhe world