Feature: 1. This product is made of high-quality materials, durable, wear-resistant, not easy to damage. 2. Supporting the whole process control of mobile APP, the interface is intuitive, the operation is simple, and the function is more abundant. 3. The shutdown or opening time of relay is programmable and can be operated arbitrarily. 4. Support SMS intelligent alarm, always detect the status of the door, protect the security of your assets. 5. Based on GSM network, it can be widely used in doors, guardrails, shutters, parking systems, household appliances, computer rooms, greenhouses, remote equipment switching, industrial remote control, etc. Specification: Condition: Brand New Item Type: Gate Opener Relay Material: Plastic, Electronic Components Type: RTU5024 Upgrade GSM Frequency: Quad-Band 850/900/1800/1900MHz Gigital Output: NC/NO Dry Contact, 3A/240VAC DC Power Supply: DC 9-36V Power Consumption: 12V Input Maximum 50ma / Average 25mA SIM Card: Support 3V SIM Card (Not Included) Antenna: 50Ω SMA Antenna Interface Temperature Range: -20℃ - +60℃ Humidity Range: Relative Humidity 90% Weight: Approx. 209g / 7.4oz Size: Approx. 76x82x27mm / 3.0x3.2x1.1in Package List: 1 x Gate Opener Relay1 x Antenna2 x Terminal Blocks1 x Manual Note: 1.Please allow 0-1 inch error due to manual measurement. Thanks for your understanding.2.Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.