LETWESAF Portable Radar Perimeter Alarm – 24GHz Millimeter-Wave, 0.5 Mile Range

Smart, dependable outdoor perimeter protection

LETWESAF's Portable Radar Perimeter Alarm uses a 24GHz millimeter-wave radar sensor to detect real movement. It reads through tents, brush, and other light obstacles, while smart filtering reduces false alerts caused by wind, sunlight, or foliage. In darkness or dim mornings, signal remains consistent, giving you a clear picture of nearby activity without relying on heat signatures.

Long-range alerts that give you time to respond

When a detector senses movement, the wireless receiver captures the alert from up to 0.5 miles (800 meters) away, roughly seven football fields. This range helps you decide whether to observe, retreat, or prepare, making it suitable for camping, driveway monitoring, or property protection.

• Precise radar detection with environmental filtering
• Reliable off-grid operation with no WiFi required
• Weatherproof design ready for rain, snow, and dust
• Expandable to cover larger areas up to 360 degrees

Customizable coverage for your critical zones

The system creates a 3D rectangular detection zone rather than a simple line. Coverage begins at about 17x20 ft and can be expanded to 50x20 ft, with motion tracking up to 75 mph. This enables focused protection around campsites, RVs, driveways, and property edges.

• 3D detection area for targeted protection
• High-speed tracking up to 75 mph
• Optimized for tents, vehicles, wildlife, and intrusions

Off-grid, portable, and easy to deploy

Designed to work offline—no WiFi required—the unit is pocket-sized and rechargeable with a 3000mAh battery. It can run for up to 48 hours on a single charge, and supports solar charging for extended trips. Mount with a ball bracket or rope on walls, fences, or trees for quick setup.

All-weather durability and expandability

Built to withstand rain, dust, fog, and extreme temperatures, the device carries IP66 weatherproofing. For larger areas, you can connect up to six sensors to one receiver, delivering full 360-degree awareness and better perimeter coverage across campsites, farms, or remote properties.

Getting started

For best results, fully charge before first use and download the latest manual from the product page. Quick setup tips will help you place sensors strategically and avoid blind spots.