GSM module - gate opening via mobile phone

I am selling a GSM relay G202 (similar to RTU5024), which enables the opening of gates, garage doors, ramps or other appliances via a mobile phone. The relay is controlled by ringing, so no fees are charged. You can authorize up to 200 numbers, unauthorized numbers cannot control the relay. The setting is done via SMS. A card from all operators can be inserted into the module - it is not blocked on any network. The PIN must be disabled on the SIM card. The module contains one switching relay (it has an ON and OFF contact) Module power supply: DC 9-36V In person or cash on delivery +4e Tel: 0940710144