Enhance door security and convenience with the WH-500 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 Remote control via app: Manage door operations from anywhere with your smartphone Integrated alarm system: Enhances security by alerting you to unauthorized access Two digital inputs: Allows for connection of additional security devices or sensors Ideal for residential or commercial use, the WH-500 provides peace of mind with its powerful features and easy installation Network Type:GSM/3G/4G DC Power Supply:AC/DC 9-36V / 1A Power Consumption:Max. 50mA / Average 2SmA SIM Card:Tipo nano Relay Output:2 Realys, 2A/250V AC | 2A/24V DC Antenna:50Ω SMA Siren Output:12V DC/1A Digital Input:4 NC/NO dry contact RelayTime:0- 9999S Users:Max.1200 Backup Battery:3.7V / 2000mAH Color:As Shown Material:plastic Package Contents: 1 * Gate Door Opener Kit Only the above package content, other products are not included. 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.