Genuine Elsema 40mm Antenna 433MHz 3.6M Coaxial with SMA

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The Genuine Elsema 433 Antenna 40mm, is a compact and efficient solution designed to enhance the signal strength and reliability of your automated systems. This low-profile antenna is ideal for various applications, providing consistent performance in a sleek and durable package.


  • Frequency: Tuned to the 433MHz band for clear and stable signal transmission.
  • High Impact Material: Constructed with UV-stabilised Delrin plastic for durability and longevity.
  • Low Profile Design: Compact 40mm length, perfect for discreet installations.
  • Coaxial Cable: Includes 3.6 meters of low loss coaxial cable with SMA termination for easy connectivity.
  • Mounting Bracket: Comes with a universal mounting bracket for versatile installation options.

The Elsema 433 Antenna 40mm is designed for efficiency and ease of use. Its robust construction and compact size make it suitable for a wide range of applications, ensuring reliable performance even in challenging environments. The included coaxial cable and mounting bracket simplify the installation process, making it a convenient choice for enhancing your system's signal strength.


  • Frequency Range: 430 to 440MHz
  • Gain: 2.0 dBi
  • VSWR (Return Loss): <1.5:1 over 10MHz
  • Impedance: 50 Ohms
  • Maximum Power: 10 Watts
  • Length: 40mm
  • Weight: 470 grams
  • Coaxial Cable Length: 3.6 meters
  • Termination: SMA connector

Lifestyle Integration

Perfect for improving the signal range of garage doors, gates, and other automated systems, the Elsema 433 Antenna integrates seamlessly into your setup. Its low-profile design ensures it remains unobtrusive while providing enhanced performance.