433MHz 12dBi Half-Wave Dipole Antenna SMA Male Magnetic Base

433MHz Half-Wave Dipole Antenna with Magnetic Base — 12dBi Signal Gain

Upgrade your wireless communication setup with this high-performance 433MHz Half-Wave Dipole Antenna. Featuring a pure copper dipole element and a 12dBi nominal gain, this antenna is engineered to enhance electromagnetic wave reception and transmission for a wide range of 433MHz devices — including remote sensors, IoT modules, RC controllers, weather stations, and automotive wireless systems.

The built-in magnetic base (3cm suction cup diameter) lets you instantly mount the antenna to any metallic surface — ideal for vehicles, metal enclosures, or equipment racks — without tools or permanent installation. Made in Mainland China.

Key Features

• 12dBi Nominal Gain — Pure copper half-wave dipole design for superior signal enhancement
• 433MHz Frequency — Compatible with a wide range of wireless modules, sensors, and remote systems
• Magnetic Mount — Strong 3cm magnetic base attaches securely to metal surfaces in seconds
• SMA Male Connector — Standard plug connector for broad device compatibility
• Multiple Cable Lengths — Available in 1.5m, 2m, 5m, or 10m RG-174 coaxial cable options
• Low VSWR ≤ 1.5 — Ensures efficient power transfer and minimal signal loss
• 50W Power Rating — Handles solid transmission power for reliable performance
• Vertical Polarization — Optimized for typical omnidirectional 433MHz communication setups
• Compact & Lightweight — 16cm total length, plastic housing for durable everyday use

Technical Specifications

What's in the Box

• 1 × 433MHz 12dBi Half-Wave Dipole Antenna with Magnetic Base

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Frequently Asked Questions

Q: What devices is the 433MHz magnetic base antenna compatible with?

A: This 433MHz dipole antenna is compatible with any device operating at the 433MHz frequency band and equipped with an SMA female port. Common uses include IoT sensors, wireless remote controls, weather stations, garage door systems, RC vehicles, and automotive wireless modules.

Q: What cable length should I choose for my setup?

A: Cable length depends on the distance between your device and the ideal antenna placement. The 1.5m or 2m options are great for compact or in-vehicle setups, while the 5m or 10m cables offer flexibility for larger installations or when routing through a vehicle or enclosure.

Q: How does the magnetic base work, and will it damage my vehicle?

A: The 3cm magnetic base creates a strong, tool-free mount on any ferromagnetic (metal) surface. It is designed for temporary or semi-permanent placement and can be removed without leaving marks or causing damage to your vehicle's surface.

Q: What does 12dBi gain mean in practice?

A: A 12dBi gain indicates the antenna focuses signal energy in a specific direction more effectively than a standard reference antenna, resulting in stronger, more reliable 433MHz signal reception and transmission over greater distances.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.