GSM door intercom

Description

This SS*1A-M GSM Door Phone is a new entrance intercom and an ideal product replacing the traditional entrance intercom. When the visitors push the call button at the same time a ring tone will be heard at the GSM door phone, the activation of the door phone’s push button will cause the telephone system to dial the preset numbers which has been programmed, and then a conversation will be made. If nobody answers the phone for *0 sec, this device will hang up and automatically dial next set of phone number. When you receive a call from door phone, answers the call by pressing the green handset button, activate the door latch and open the door by pressing “ * ” Features: 1. Stainless-Steel, Weatherproof. 2. Vandal resistant design 3. Rings up to 3 numbers in sequence. 4. Ring in to open the door without key at no call charge, Max **0 mobile numbers 5. Listener monitoring 6. Ring time/ call time can be changeable 7. Works with mobile phones and land lines 8. Unlimited range wire free GSM intercom using GSM module. . 9. Relay outputs to control most door locks and gate automation systems (volt free) *0. Suitable for both flush / surface mounted installation.