SONOFF PIR3-RF – 433MHZ RF PIR motion sensor


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【Motion Sensor & Camera Binding】Alarm notification, by binding a camera, monitor your home on the double insurance.
【Alert Mode/Normal Mode】Two built-in modes which are two different trigger time mechanisms to meet your needs in different scenes.
【Smart Scenes】Set the smart scenes based on your needs, trigger more devices/scenes.
【Easy Installation】3M adhesive or screw mounting (universal joint).
Note 1: Batteries are not included in the package.
Note 2: The PIR3-RF sensor requires SONOFF 433MHz RF Bridge to work.

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SONOFF PIR3-RF Decriptions:

The difference with SONOFF PIR2 RF motion sensor is that PIR3-RF has a small and compact size, easy to be used in almost any position to detect the movement.

SONOFF PIR3-RF motion sensor can detect and report motion. When used for your home security system, it can detect the movement within 8M and help identify whether a human or pet is moving around inside your house, and your mobile phone will receive an alert notification. Connect SONOFF camera and you can view who is the intruder. When incorporated into your smart lifestyle, the sensor triggers your light on or off after connecting with SONOFF RF Bridge. You can set a scene that the hallway light is turned on when you enter the door.

With the universal joint, the sensor can be flexible to rotate a full 360°horizontal angle and 90°vertical angle which allows you to adjust the sensor into an optimal angle to view everything in your home (The sensor doesn’t move on its own based on your motion). Another convenience for your home is that you can use the sensor for a position where the movement is not easy to be detected via mounting it in the universal joint, and just rotate the universal joint head to get a wonderful detecting angle. Plus, you can directly stick the sensor on the surface of objects to detect the movement. Just choose one as you like.

PIR3-RF has 2 working modes that alert and normal mode. In the alert mode, the sensor is triggered per 5s when someone enters the detection range. In the normal mode, the next alert trigger is activated if there is no motion detected within 1min after the previous detection.

1. The PIR3-RF sensor requires SONOFF 433MHz RF Bridge to work.
2. The universal joint is not included, please purchase it separately.


Additional information

Weight 21 g
Dimensions 38 × 33 × 42 mm




Detection Distance

<=8m(indoor space)

Detection Angle


Power Supply

3V button cell(Battery model: CR2450)



Working humidity

10-90%RH (non-condensing)

Working temperature


Customer Reviews

Based on 5 reviews
A+ for SmartThings systems (Zigbee version, not RF)

Good connectivity, including SmartThings and a very good price.

Neil M
Good product use a lot

So i have a stack of these around the house for different purposes. They work well and tick all of my use boxes however battery life is terrible. I find on average we replace the battery every 1-2 months with fairly active areas and maybe 3 for quiet active areas

Great for RTL-433 in Home Assistant

These little buggers are WAY smaller than the previous Sonoff PIR sensors. I hope the battery lasts as long. The range is great into my RTL-SDR device running RTL-433 in Home Assistant. Monitoring motion in my shed over a hundred feet away in the backyard. The smaller size allows me to mount them in more locations without being so conspicuous. No Zigbee or Zwave pairing required! I would recommend.

Humberto Higinio
Magnifico PIR de RadioFrecuencia

Es un dispositivo pequeño, de gran alcance de hasta 8m, con una bateria que dura muchos meses y lo mas importante que permite crear Escenas Inteligentes con la misma APP Ewelink para controlar luces o incluso nuestra alarma, realmente vale la pena, muchas gracias SONOFF.

Bosse Karlsson
Bon achat. Fonctionne bien.

tout fonctionne comme indiqué.

SONOFF PIR3-RF - 433MHZ RF PIR motion sensor