Feature: 1. External antenna for appliances, gate, garage door, and 868MHz garage remote signal enhancement. Professional-grade antenna for improved performance. 2. Designed for compatibility with various gate automation control boards or receivers. 3. Suitable for extending the range of 868MHz remote control signals. 4. Increases transmission range up to 200 meters for 868MHz devices. 5. Wide application in garage doors, electronic gates, barrier gates, sliding doors, automatic doors, rolling doors, shutters, home automation systems, lighting, alarm systems, and access control systems. Specification: Item: 868MHz External Antenna Main Color: Black, Silver Material: ABS & Metal Frequency: 868MHz Mounting: Screw (wall mount) Cable Length: 2m Bandwidth: 10MHz VSWR: ≤1.5 Gain: 3dBi Max Input Power: 20W Input Impedance: 50Ω Polarization: Vertical Antenna Length: 250mm Cable Type: RG174 Impedance: 50 Ohm Bracket Material: Stainless Steel Package Size: 31.5 x 8.3 x 2.5cm Package Weight: 120g Package Contents: 1 x Antenna 1 x Metal Wall Mounted Base 2 x Screws