Surface 4000 series 1 button GSM PRO intercom kit with codelock (SIM card required, but not supplied). The intercom allows users to answer calls from door or gate entry point to any telephone number including mobile numbers.
- Includes an exit button input, auxiliary inputs and outputs and a dry contact relay
- Programmable via text message or using the GSMSK PC software
- Powered using 12-24V ac/dc power
- Incorporates built in proximity reader in the main GSM module which can use the 955/T fobs.