VR4K Series GSM
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0 Button module
Self contained VR4k vandal resistant GSM module. Expandable up to 10 call buttons using the VR4K modules. See VR4K modular section for expandion button modules, access control modules and frames.
1 button module
Self contained VR4k vandal resistant GSM module. Expandable up to 10 call buttons using the VR4K modules. See VR4K modular section for expandion button modules, access control modules and frames. Includes speak, busy and open call progress LED's
2 button module
Self contained VR4k vandal resistant GSM module. Expandable up to 10 call buttons using the VR4K modules. See VR4K modular section for expandion button modules, access control modules and frames. Includes speak, busy and open call progress LED's
3 button module
Self contained VR4k vandal resistant GSM module. Expandable up to 10 call buttons using the VR4K modules. See VR4K modular section for expandion button modules, access control modules and frames. Includes speak, busy and open call progress LED's
