Enhance door security and convenience with the WH-300 door opener, which features advanced 4G GSM technology for reliable remote access via a user-friendly app. The system allows you to remotely control and monitor door operations, ensuring safety and efficiency<br> Remote control via app: Manage door operations from anywhere with your smartphone<br> Integrated alarm system: Enhances security by alerting you to unauthorized access<br> Two digital inputs: Allows for connection of additional security devices or sensors<br> Ideal for residential or commercial use, the WH-300 provides peace of mind with its powerful features and easy installation<br> WH-300 4G-EU (applicable to the Middle East, Africa, Europe, Southeast Asia, China)<br> Model Number:WH-300<br> Product Name:4G SMS Alarm Controller<br> Usage:Garage Shutter Door and Home alarm system<br> Power supply:AC/DC 9V~36V/1A<br> 4G-EU(For EMEA):<br> LTE-FDD Bands: B1/B3/B5/B7/B8/B20/B28<br> LTE-TDD Bands: B38/B40/B41<br> GSM: 850/900/1800/1900MHz<br> Communication protocol:GSM PHASE 2/2+ (include data service)<br> Digital Input:2 NC/NO dry contact<br> Digital Output:1 Relay, 3A/125VAC<br> SIM Card:Nano type, 3V<br> Antenna:50 Ω SMA<br> Working temperature:-10℃~+60℃<br> Storage temperature:-20℃~+60℃<br> Relative humidity:10-90%, No condensation<br> Material: Plastic<br> Color: As shown<br> Package Contents:<br> 1 x Gate Door Opener Kit<br> 1 x English instruction manual<br> Only the above package content, other products are not included.<br> Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.