Гостиницы Отели / туризм предложения по импорту и экспорту alarm system

• GSM dialer D4T4 is extremely suitable for remote monitoring systems and alarm systems. Notification calls or SMS to 4 different users. This reliable module is appropriate in cases of remote switching on/off of devices and systems as follows: - the garden lighting - the heating systems - the irrigation system, etc. • Other remote functions and options: - To be notified if someone had switched on/off the home alarm system. - To survey when the employees did open/close the sto