Strong Antijamming 5.8GHz Microwave Radar Sensor — 6–9M Smart Trigger Switch Module, 3.3–20V DC for Home Control Quick overview A 5.8GHz microwave radar sensor module designed for reliable motion detection and switching in home control applications. Built to resist interference, it provides a stable trigger output for lighting, automation and other control circuits that accept a 3.3–20V DC input. Key benefits Reliable motion detection: 5.8GHz microwave radar detects movement through a wide range of conditions where optical sensors can fail (darkness, smoke, dust). Strong antijamming: Designed to minimize false triggers caused by environmental interference and radio noise for consistent operation. Wide operating voltage: Works with any 3.3–20V DC supply, making it easy to integrate with many controllers, microcontrollers and home automation devices. Practical trigger module: Acts as a smart switch output to control lights, relays, fans or other devices when motion is detected. What it does and how it solves problems This module senses motion using 5.8GHz microwave radar and delivers a trigger signal to your control circuit. Because it uses microwave detection and includes antijamming characteristics, it maintains stable performance in locations that challenge infrared or passive sensors, reducing false activations and improving reliability for automated home systems. Key attributes Frequency: 5.8GHz microwave radar. Antijamming: Strong antiinterference performance for stable detection. Detection range: 6–9 meters. Module type: Smart trigger switch module (provides a switching/trigger output for control circuits). Operating voltage: 3.3–20V DC (suitable for lowvoltage home control systems). Intended use: Home control and automation. Compatibility and integration Compatible with control circuits and controllers that accept a trigger or switch input within 3.3–20V DC. Can be used with lighting drivers, relays, microcontroller input pins, and automation hubs when wired to accept the module's trigger output. Ideal for retrofit and installations where a compact, voltageflexible motion trigger is needed. Typical use cases Hallway and corridor lighting: Automatically trigger lights when someone walks through, with reduced false activations from environmental noise. Porch, entryway or garage lighting: Reliable nighttime activation that works when optical sensors may be blocked by dirt, rain or poor light. Bathroom or utility fan control: Turn on ventilation or exhaust systems only when motion is detected, supporting energy savings and convenience. Installation notes Requires a 3.3–20V DC supply. Connect the module's power and trigger output to the control circuit or relay input according to your system wiring. Place the module where it can 'see' the detection zone for results; the specified detection range is 6–9 meters. Performance and reliability Uses 5.8GHz microwave detection for penetration through some obstructions and consistent response in diverse lighting conditions. Antijamming design improves stability in environments with RF noise or interference sources. This 5.8GHz microwave radar sensor module is a practical choice when you need a dependable, interferenceresistant motiontrigger switch for home automation systems that operate on a 3.3–20V DC supply.