The Sonoff PIR3 RF Motion Sensor detects motion using 433 MHz radio frequency—no Wi‑Fi required. It’s compact, wireless, and ideal for quick automation in your home or office.Mount the sensor on a wall or ceiling. It pairs easily with Sonoff RF devices like switches, alarms, or bridges. When it detects motion, it sends an instant RF signal to your paired device. You can trigger lights, sirens, or other actions—without needing an internet connection.With a 120° detection angle and up to 8 meters of range, it covers small and large rooms efficiently. Even in low light, the sensor responds accurately. It runs on two AAA batteries, which can last more than two years depending on use.The device supports custom delay and sensitivity settings, so you can adjust it for different spaces. Whether you want quick alerts in entryways or delayed triggers in storage rooms, it adapts easily.Because it uses RF signals instead of Wi‑Fi, responses are fast and reliable. You won’t lose functionality if your internet goes down. This makes it perfect for garages, staircases, hallways, and other offline areas.Additionally, the PIR3 RF supports multi-device scenes. You can pair it with RF-based switches or alarms to create a complete automation setup. No wiring or mobile apps are required.Installation is simple. Just insert batteries, mount it in place, and pair with your RF controller. Its sleek design fits neatly into any room.If you’re building a cost-effective smart system, this motion sensor is a great choice. It enhances both security and energy efficiency—without complexity.The Sonoff PIR3 RF gives you fast motion detection, long battery life, and flexible automation—all in one compact device.Explore other Smart Devices on Ledgebit.
