GSM Access Controller For Industrial And Commercial Use

Product information:

Specifications: 2G version,3G version,4G version
Packing size: 17*9.5*4 cm
Gross weight: 0.32 kg
Application: Remote open/close swing/sliding doors, doors, shutters, garage doors, locks, have a free phone!

Price above $50, not responsible for any after-sale,  mind not to shoot

Packing list:

Door opener * 1
Antenna * 1
User manual *1