Smart Garage Door Controller, Remote Switch, SIM Card Support, Automatic Identification, Programmable, App Control, No Distance Limitation - Yunir, Yunirodm6wxkug1

• [REMOTE CONTROL] - Control your garage door easily with the smart remote switch. Convenient APP operation allows for free authorized calls and can be used from anywhere with no distance limitation. Perfect for global network use. [SIM CARD SUPPORT] - No call charges! This relay switch only receives calls from authorized numbers and performs the switch operation on the first . Supports standard SIM cards only. [AUTOMATIC IDENTIFICATION] - Utilize caller ID to identify and ignore unknown callers. Add or remove users easily using SMS text commands. No need for remote controls or buttons for different users. [PROGRAMMABLE] - Add or remove users through SMS text commands. The relay or open time is programmable. Relay operation returns SMS confirmation to authorized phone, all without any call charges. [APPLICABLE] - Suitable for group type doors, elevators, garages, parking lots, resorts, control rooms, warehouses, unsupervised machine rooms, telecom operators, on-site lighting subframes, base stations, traffic controllers, electrical systems, and on-site cabinets.