GSM door opener RTU5015 is a simple designed GSM controller, which can be used to authorize access control, control door, remote equipment switching, parking system, etc. In fact, the GSM door opener RTU5015 can be used in places where systems, machines and equipment need to be opened/closed remotely, just by calling a toll-free phone from a mobile phone.Features:No telephone charges. The GSM door opener rejects calls from authorized numbers and then performs a switch action on the first "ring tone".Multiple applications. (doors, guardrails, guardrails, garage doors, shutters, doors or machines). Safety - Use caller number for identification, ignoring unknown callers. It can be operated from anywhere without distance restriction.Adding or deleting users through simple SMS text commands. A maximum of 99 authorized telephone numbers can be configured. Two digital input door sensors, motion sensors or other sensors protect your doors and windows. When any of them triggers, they will send a short message to remind you immediately.The output of a relay grade 3A/240VAC is used to connect the switch of the door or machine.Relay action will return short message confirmation to users, which can be edited by users themselves.Specifications:Plug: 110-240V USDC power supply: 12 v/2aPower consumption: 12V input (50mA)Frequency range: dual frequency 900/1800 MHz or 850/1900 MhzSIM Card: Support 3V SIM CardAntenna: 50 SMA Antenna InterfaceTemperature range: - 20 - + 60 degree CHumidity range: Relative humidity 90% (without condensation)Relay grade: 3/240 V ACSize: 110 mm * 90 mm * 25 mmPackage Weight: 560g/19.8ozPackage List:1 * GSM Gate Opener1 * User Manual1 * Plug1 * Adapter Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.