4G HIGH GAIN SMA ANTENNA FOR OUTDOOR CONDITION, 4G/3G/2G/LPWA SUPPORT, WATERPROOF, MAGNETIC BASE, WAVESHARE 21371

Waveshare 4G High-Gain SMA Antenna 21371 – Outdoor 4G/3G/2G/LPWA Signal Booster

The Waveshare 21371 is a high-gain SMA antenna designed to significantly improve mobile network connectivity and signal quality — perfect for use with 4G, 3G, 2G modems and LPWA modules such as LTE Cat-4 HATs, NB-IoT, or LoRa gateways. Built for outdoor use, this antenna features a weatherproof enclosure, rugged housing and a magnetic base for flexible mounting on vehicles, metal surfaces or shelters.

With a high-gain radiation pattern and wide frequency coverage, the 4G Antenna 21371 enhances both download/upload speed and signal stability in weak-signal areas, helping to reduce connection drops and improve overall network performance. The standard SMA male connector ensures easy compatibility with most modems, HATs, routers, and IoT devices.

Key Features:

• High-gain antenna optimized for 4G / 3G / 2G / LPWA (NB-IoT / LoRa) networks

• Durable, weatherproof housing – suitable for outdoor installation

• Magnetic base for easy attachment to metal surfaces (cars, enclosures, shelters)

• SMA male connector for broad compatibility with modems, HATs or routers

• Improved signal strength and stability in remote or weak-signal environments

Typical Use Cases:

• Mobile IoT hubs or gateways in remote locations

• Vehicle-based modems and telematics (cars, boats, RVs)

• Outdoor routers, weather stations or telemetry equipment needing stable connectivity

• Rescue, agriculture or remote-monitoring systems relying on cellular networks

• Any 4G/LPWA-based system operating in low-signal / rural / industrial areas

Whether used with a 4G HAT on a Raspberry Pi, a rugged modem in an RV, or an LPWA gateway on a rooftop, this high-gain antenna helps ensure solid and stable connectivity wherever you need it.