The invention relates to an apparatus allowing monitoring of the beginnings and ends of duty periods, of the starts and ends of rounds, of vigilance during a duty period, as well as the alarm, listening, dialogue and self protection for the system, with the aid of a remote surveillance unit. It consists of a housing comprising a means of identifying the operator, a telephone transmitter, a microprocessor, and various alarm and monitoring devices. The apparatus according to the invention is more particularly intended for guarding and security activities. IMAGE
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