Meet LWR02
All-in-One Wireless Presence Sensor
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A Smarter, More Responsive Home Starts Here.
Dual-Sensor Precision: Combining mmWave radar and PIR technology, the LWR02 flawlessly detects everything from subtle breathing to sweeping movements with pinpoint accuracy.
5-in-1 Sensing: The LWR02 tracks presence, motion, temperature, humidity, and ambient light levels all in one smart device.
Splash and Humidity Ready: Built with an IPX3 rating, it is perfectly suited for damp or splash-prone environments like bathrooms and kitchens.
True Wireless Freedom: Enjoy up to 2 years of battery life without the hassle of wiring. It also supports rechargeable batteries for an eco-friendly power solution.
Mount It Anywhere: Achieve optimal detection coverage with versatile installation options. Attach to magnetic surfaces, secure it with adhesive, or simply place it on a shelf.
Ultimate Smart Home Connectivity: Powered by Matter over Thread, it seamlessly integrates with your favorite ecosystems, including Amazon Alexa, Apple HomeKit, Google Home, Samsung SmartThings, Home Assistant, and Homey.
LWR02 is officially available as an add-on with Comet Q on Kickstarter.
Simply add it to your pledge to complete your setup.
36 USDMSRP: 49.9 USD
🚀 Back on KickstarterNeed help? Learn more about pledging via secret links & updating your add-ons here.
5-in-1 Sensing
Unlock limitless smart home automations
With presence, motion, temperature, humidity, and ambient light sensing, LWR02 provides a complete view of your environment and enables smarter automations tailored to your daily routine. Create advanced scenes—like turning on the AC only when the room is occupied and the temperature rises—for true home automation.
IPX3-rated protection against water spray
Reliable in humid environments
Designed to handle everyday splashes, LWR02 performs reliably in humid spaces like kitchens and bathrooms, allowing flexible placement near sinks or moisture-prone areas.
Ultra-Long Battery Life
Install anywhere, forget the rest.
Optimized for efficiency, LWR02 delivers up to two years of battery life on two standard AAA batteries. Install it anywhere without worrying about cables or frequent battery changes. Rechargeable batteries are also supported.
Dual Sensor Presence Detection
Knows you are there, even when you are still
Combining mmWave radar and PIR sensing, LWR02 detects both subtle presence and larger movements with greater accuracy, ensuring your home responds at the right moment.
5-in-1 Sensing
Unlock limitless smart home automations
With presence, motion, temperature, humidity, and ambient light sensing, LWR02 provides a complete view of your environment and enables smarter automations tailored to your daily routine. Create advanced scenes—like turning on the AC only when the room is occupied and the temperature rises—for true home automation.
IPX3-rated protection against water spray
Reliable in humid environments
Designed to handle everyday splashes, LWR02 performs reliably in humid spaces like kitchens and bathrooms, allowing flexible placement near sinks or moisture-prone areas.
Ultra-Long Battery Life
Install anywhere, forget the rest.
Optimized for efficiency, LWR02 delivers up to two years of battery life on two standard AAA batteries. Install it anywhere without worrying about cables or frequent battery changes. Rechargeable batteries are also supported.
Compact & Discreet
Fits perfectly in any corner
Featuring a smaller, refined design, LWR02 fits naturally into any space. Flexible installation options make it easy to mount with adhesive, place on shelves, or attach to magnetic surfaces while maintaining reliable detection coverage.
Seamless Connectivity
Fast, Reliable, and Private with Matter over Thread
Powered by Matter over Thread, LWR02 connects seamlessly across major smart home ecosystems, enabling fast, reliable, and local control with enhanced privacy. Your data stays within your home network instead of relying on external cloud services. It works with Amazon Alexa, Apple HomeKit, Google Home, Samsung SmartThings, Home Assistant, and Homey, giving you the flexibility to build your smart home your way.
Support Functions by Platform
| Apple HomeKit | Amazon Alexa | Google Home | Home Assistant | Homey | Samsung SmartThings | |
|---|---|---|---|---|---|---|
| Movement/Presence | ||||||
| Ambient Light | ||||||
| Temperature | ||||||
| Humidity | ||||||
| Battery Percentage | ||||||
| Remote Access | ||||||
| Notification | ||||||
| Automation | ||||||
| Support Lafaer APP |
- Apple HomeKit - Apple TV 4K (2nd / 3rd gen), HomePod (2nd gen), HomePod mini
- Amazon Alexa - Echo (4th gen), Echo Hub, Echo Plus (2nd gen), Echo Show 8/10, Echo Studio, eero Pro 6E, eero Pro 6, eero 6+, eero 6, eero PoE 6, eero PoE Gateway, eero Max 7
- Google Home - Nest Hub (2nd gen), Nest Hub Max, Nest Wifi Pro, Google TV Streamer
- Samsung SmartThings - SmartThings Hub v3, SmartThings Station
- Homey - Homey Pro (2023), Homey Pro Mini
- Home Assistant - Home Assistant Yellow, SkyConnect
Specifications
| Model | LWR02 |
| Battery Type | AAA Battery x2, Supports rechargeable batteries |
| Detection Range | Presence: 4m (13.1ft) / Motion: 8m (26.2ft) |
| Detection Angle | Approx. 120° |
| Communication Protocol | Matter over Thread |
| Wireless Standard | IEEE 802.15.4, 2.4 GHz |
| Dimensions / Weight | Device only: 71 × 46 × 36 mm (2.80 × 1.81 × 1.42 in) With stand: 71 × 46 × 49 mm (2.80 × 1.81 × 1.93 in) |
| Operating Temperature | 0 ~ 40°C (32–104°F) |
| Protection Rating | IPX3 |
| Tools & Downloadables | App | Media Kit |
FAQ
Everything you need to know before setup, pairing, and daily use.
How do I factory reset or enter pairing mode?
Press and hold the side button for 8 to 16 seconds, then release. The LED indicator will flash orange.
How is the device powered?
Powered by two AAA batteries (included), delivering over two years of battery life. Supports rechargeable batteries (not included).
How should the LWR02 be installed for optimal performance?
For the best detection accuracy, horizontal installation is recommended. Vertical installation is not advised, but if necessary, the device should be placed at or slightly above the target height and angled downward. To avoid false triggers, do not position the device facing large glass surfaces, and keep it away from moving objects such as fans or curtains to ensure stable detection.
What should I do if pairing fails with smart home hub?
If pairing fails, first make sure your phone and the Thread Border Router are connected to the same local network. Then restart your home hub and check that IPv6 is enabled in your router settings, as this is required for platforms like Home Assistant, Alexa, and external Thread Border Routers.
Can the sensor be paired with two phones at the same time?
No. For security reasons, the Lafaer app currently supports pairing with only one phone. It is recommended to use your primary mobile device for setup.