Smart | wireless motion sensor | detector | 100° | 8m | 433MHz | 42x38x33mm | white | Wi-Fi | SONOFF | PIR3-RF
Code: PIR3-RFPrice 8.71 € VAT incl.( 7.20 € VAT excl. )SONOFF PIR3-RF is a wireless PIR motion sensor with RF 433 MHz: it detects motion up to 8 m away within 100°. It works with SONOFF RF Bridge R2 (eWeLink app) and RF receivers, runs on a CR2450 battery and mounts without wiring.
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Smart | wireless motion sensor | detector | 100° | 8m | 433MHz | 42x38x33mm | white | Wi-Fi | SONOFF | PIR3-RF
SONOFF PIR3-RF is a wireless passive infrared (PIR) motion sensor working on 433 MHz radio. It detects motion up to 8 m away within a 100° angle and sends a signal to SONOFF RF Bridge R2 or RF receivers.
Key idea:
A simple and affordable way to automate lighting or get motion notifications without wiring. In the app, the sensor is visible through RF Bridge R2, and without a hub it can directly control an RF receiver.Detection
up to 8 m, 100°Connectivity
RF 433 MHzPower
CR2450, 3 VDimensions
38 × 33 × 42 mmHow it works
The PIR sensor detects a change in thermal radiation when a person moves in the detection zone and sends a 433 MHz radio signal.
The signal is received by SONOFF RF Bridge R2, which passes the event to the eWeLink app – from there scenes, notifications and other SONOFF devices are linked.
The sensor is powered by a CR2450 battery and mounted with 3M adhesive tape or on a separate Motion Sensor-BASE stand.
Why choose PIR3-RF?
Wireless installation in minutes, long battery life and a wide 100° detection angle make it quick to automate lighting in corridors, stairwells or storage rooms and to get motion notifications.Technical specifications
Product type Wireless PIR motion sensor, RF 433 MHz Manufacturer / model SONOFF PIR3-RF Sensor type passive infrared (PIR) Detection distance up to 8 m (indoors) Detection angle 100° Wireless RF 433 MHz Compatibility SONOFF RF Bridge R2, SONOFF RF receivers Power 3 V CR2450 battery App eWeLink (via RF Bridge R2) Operating temperature -10 °C … +40 °C Operating humidity 5–95 % RH, non-condensing Housing PC V0, white Dimensions / weight 38 × 33 × 42 mm / 15 g Mounting 3M adhesive tape or Motion Sensor-BASE stand (not included) Main functions
- Motion detection – up to 8 m and within 100°.
- Notifications – via RF Bridge R2 to the eWeLink app.
- Scenes – motion switches on lighting or other SONOFF devices.
- Direct RF control – can control an RF receiver without a hub.
- Wireless mounting – no wires, on adhesive tape or a stand.
- Long battery life – CR2450 battery.
Where is it used?
- Corridors and stairwells
- Storage rooms and basements
- Garages and outbuildings
- Entrances and hallways
- Office break areas
- Security motion notifications
Use by need
For homeowners.
The light switches on as you pass, and motion notifications can be sent to the phone.For electricians.
No wiring – the sensor is stuck on in minutes and paired with RF Bridge.For smart home integrators.
An affordable RF sensor for scenes with RF receivers and Wi-Fi devices via RF Bridge R2.Practical use
If the basement light is often left on, PIR3-RF is stuck to the wall, paired with RF Bridge R2, and an eWeLink scene is set: motion switches on the MINIR4 relay, and after 3 minutes without motion the light switches off.Pros
- Fully wireless installation
- Wide 100° detection angle
- Detection distance up to 8 m
- Small and light housing
- Works with RF Bridge R2 and RF receivers
Cons / limitations
- RF Bridge R2 required for the app
- One-way RF link – no status feedback
- Indoor use only
- Does not work with Zigbee hubs
Safety and installation notes
- Install only indoors in a dry place
- Do not point the sensor at heaters, windows or direct sunlight
- Observe polarity when replacing the battery
- Recycle used batteries
- Keep away from children – contains small parts and a battery
Quick selection guide
PIR sensor8 m, 100°RF 433 MHzCR2450 batteryRF Bridge R2Indoor onlySuitable when you need:- automate lighting by motion
- get motion notifications
- control an RF receiver without a hub
Check before use:- whether you have RF Bridge R2 or an RF receiver
- the mounting height and direction
- the distance to the RF Bridge
- that there are no heat sources in the detection zone
Important reminder: PIR3-RF is not a certified intrusion alarm detector – use a certified system for professional security.FAQ
Is a hub needed?
RF Bridge R2 is needed for the app and scenes; the sensor can also control an RF receiver directly.Does it work with a Zigbee hub?
No, PIR3-RF uses 433 MHz RF; for a Zigbee system choose SNZB-03.What battery does it use?
A 3 V CR2450 battery.Can it be used outdoors?
No, the sensor is designed for indoor use.What is the detection range?
Up to 8 m indoors, within 100°.How is it mounted?
With 3M adhesive tape or on a Motion Sensor-BASE stand.Smart | wireless motion sensor | detector | 100° | 8m | 433MHz | 42x38x33mm | white | Wi-Fi | SONOFF | PIR3-RF
SONOFF PIR3-RF is a wireless 433 MHz PIR motion sensor: up to 8 m and 100°, CR2450 battery, works with RF Bridge R2 and RF receivers, for lighting automation and notifications.
Illustrative image may have been created using AI. The appearance of the product may differ slightly from the image shown. Please refer to the technical specification.ManufacturerThis product is marked with the CE label, which confirms that it complies with all applicable European Union directives and regulations. CE marking is not just a formality – it is an important indicator of quality and safety, ensuring that the product has been properly assessed, tested, and can be safely used throughout the EU market.
CE certification means that the product has been evaluated according to the main criteria:
Safety requirements – ensures that the product does not pose a risk to the user or the environment
Electromagnetic compatibility (EMC) – the device does not interfere with other equipment and is resistant to external disturbances
Environmental standards – complies with current ecological and material usage requirements
Operational reliability – the product is suitable for long-term use according to its intended purposeCE marking allows this product to:
be legally supplied and used in all European Union countries
ensure a high level of quality and safety
be used in residential, commercial, and industrial environmentsThe CE mark is a declaration of the manufacturer’s responsibility, confirming that the product complies with all applicable standards and has been assessed according to EU legislation.
What does this mean for you as a buyer?
Safe use in everyday activities
Reliable performance and reduced risk of failure
Compliance with EU standards and requirements
Suitability for professional solutions
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