Extendable Antenna SMA 433 868 MHz Garage Door Remote 200m

Elevate the range and reliability of your door and gate systems with the Extendable Antenna SMA 433/868 MHz. Designed for 433MHz, 433.92MHz and 868MHz remotes, this external antenna enhances signal strength and extends transmit distance up to 200 meters under optimal conditions. Built to work with gate controllers, garage door remotes, barrier gates, and home automation devices, it delivers a robust, clear signal for smoother operation and fewer missed opens.

Featuring a durable ABS body with a stainless steel mounting bracket, this antenna is built to withstand everyday use. It supports wall mounting with a 2-meter coax cable (RG174) and a 50-ohm impedance, ensuring compatibility with a wide range of control boards and receivers. Vertical polarization and a compact 250 mm length combine to deliver reliable reception in challenging environments like metal garages or cluttered installations.

Whether you’re upgrading an existing setup or installing a new system, this antenna is a practical upgrade for improved range, reliability, and convenience in everyday access control and home automation.

Benefits & Tips

• Extend remote range for garage doors, electronic gates, and sliding/rolling doors, reducing the need to move closer for operation.
• Install on a wall near the control board or gateway to minimize interference and improve line-of-sight transmission.
• Orient the antenna vertically and keep the cable away from metal surfaces or high-power devices to maintain optimal signal quality.

Product specifications

• Item: 433MHz/868MHz External Antenna
• Main Color: Black, Silver
• Material: ABS & Metal
• Frequency: 433.92MHz / 433MHz / 868MHz
• Mounting: Screw (wall mount)
• Cable Length: 2 m / 984 inch / 82 ft
• Bandwidth: 10 MHz
• VSWR: ≤ 1.5
• Gain: 3 dBi
• Max Input Power: 20 W
• Input Impedance: 50 Ω
• Polarization: Vertical
• Antenna Length: 250 mm
• Cable Type: RG174
• Impedence: 50 Ohm
• Bracket: Stainless steel
• Package Size: 31.5 × 8.3 × 2.5 cm
• Package Weight: 120 g

Package includes:

• 1 x Antenna
• 1 x Metal wall-mounted base
• 2 x Screws

Warnings/Reminders

• Ensure compatibility with your 433MHz/868MHz remote systems and control boards before installation.
• Do not exceed the listed maximum input power (20 W) to avoid damage.
• Install away from strong EMI sources and ensure the cable is kept clear of high-heat or water exposure.

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