LinknLink eMotion Air: Battery-Powered mmWave Presence Multi-Sensor
LinknLink eMotion Air: Battery-Powered mmWave Presence Multi-Sensor
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Battery Power | mmWave Radar | Light Sensor | Temperature and Humidity | Smart Button | Bluetooth, Zigbee | Magnetic Mounting | Home Assistant
Why eMotion Air converts organic shoppers
eMotion Air is a battery-powered mmWave presence sensor for rooms where wiring is hard but reliable occupancy automation still matters. It helps Home Assistant users keep lights, climate, and routines responsive when people are sitting still, not just walking past a PIR sensor.
- Battery-powered placement: test presence automation in bedrooms, offices, and rental rooms without opening walls.
- mmWave presence detection: detect subtle occupancy for scenes where motion sensors often turn off too early.
- Home Assistant room automation: use presence data to coordinate lights, comfort, and energy-saving routines.
Technology Quick Comparison
| Feature | eMotion Air | Typical PIR motion sensor | Typical powered mmWave sensor |
|---|---|---|---|
| Detection logic | 24GHz mmWave presence sensing | Motion-triggered sensing | Powered mmWave presence sensing |
| Still-person support | Detects micro-movements | Often limited | Usually supported |
| Room signals | Presence, light, temperature, humidity, button | Usually motion only | Varies by model |
| Wiring need | Battery-powered | Battery or wired | Usually USB or hardwired |
| Installation style | Magnetic, adhesive, screw, corner, or tabletop | Adhesive or screw | Usually fixed powered placement |
| Automation fit | Bluetooth, Zigbee, Alexa, Google Home, Home Assistant | Depends on model | Often automation-platform focused |
Core Features of eMotion Air
Skip $100 sensor setups. This 4-in-1 (mmWave, light, temp, button) starts at just $16.99 less than a meal. Don’t miss your chance for smarter living!
Install anywhere and maintain with ease. eMotion Air uses 3xAAA batteries for a 1.5-year lifespan and 24GHz radar detection designed for low-power room sensing.
Ultra-thin and versatile, eMotion Air supports magnetic, adhesive, or screw mounting. For broader room coverage, use the 90° corner bracket for neat corner mounting or as a tabletop stand.
Dual Connectivity: Use Bluetooth for instant phone setup or Zigbee 3.0 for broad hub compatibility and faster response.
Easy Switching: No need to choose — simply long-press the button to switch between modes anytime.
Upgrade from PIR to precision. eMotion Air’s mmWave sensor detects micro-movements others miss. Sit still on the sofa - your lights stay on.
eMotion Air monitors temp, humidity, and light to automate your climate and lighting for zero-effort comfort. Let your home adjust itself to your perfect settings.
Skip the app - just click! eMotion Air’s lower half is a tactile smart button supporting single, double, and long-press actions for Alexa or Home Assistant. Use our included stickers to label your favorite scenes and enjoy simple, physical control.
Connect eMotion Air to Alexa or Google Home for voice status checks and presence-based triggers. Note: Due to platform limits, temp/humidity-based automations are currently unsupported.
Pro-level HA Integration: Get full access to presence, climate, light, and button entities in Home Assistant. Enjoy 100% local control for faster, more secure, and infinitely more powerful automations than cloud platforms.
Privacy first: all sensor data stays on your phone, not the cloud, for faster and secure access. Easily back up or export your history to CSV anytime.
Recommended Scenarios
Movie Scene: Button Pressing Triggers
Energy Saving: Presence Triggers
Food Storage: Temperature and Humidity Monitoring
Product Specifications
Explosive View
eMotion Air Product Specifications
| Specification | Details |
|---|---|
| Sensor and signals | 24GHz mmWave presence, light, temperature, humidity, button actions |
| Button actions | Single press, double press, long press |
| Connectivity | Bluetooth, Zigbee 3.0 |
| Power | 3xAAA batteries |
| Battery life | Up to 1.5 years, depending on settings and usage |
| Mounting | Magnetic, adhesive, screw, 90-degree corner bracket, tabletop |
| Smart platforms | Alexa, Google Home, Home Assistant presence, climate, light, and button entities |
| Data handling | Sensor history can be backed up or exported to CSV |
How to Install Batteries
Packing List
- eMotion Air Basic/Plus x1
- Wall-mounting bracket x1
- Luminous sticker x1
- Nano Tape x1
Presence Sensor Buying Comparison
Choose the LinknLink eMotion model that fits your room
Use this lineup view after the technology comparison above: Air is for cable-free placement, Pro is for powered rooms that also need IR control, and Ultra is for advanced 60GHz zone-aware automation.
| Need |  eMotion Air |
 eMotion Pro |
 eMotion Ultra |
|---|---|---|---|
| Starting price | $16.99 | $17.99 | $49.99 |
| Primary fit | Battery placement | Presence + IR | 60GHz zones |
| Power | 3x AAA | USB-C 5V/1A | USB-C 5V/2A |
| Radar | 24GHz mmWave | 24GHz mmWave | 60GHz mmWave |
| Room signals | Presence, light, temp, humidity, button | Presence, light, IR, optional temp/humidity | Presence zones, light, IR, temp/humidity cable, BLE hub |
| Placement | Rentals, shelves, cable-free rooms | Bedrooms, offices, AC/TV rooms | Open rooms, media rooms, zone-aware setups |
| Home Assistant | Bluetooth/Zigbee path | WiFi + MQTT | WiFi + MQTT with zone entities |
| Choose when | You want cable-free battery placement | You also need IR appliance control | You want 60GHz zone-aware room sensing |
Feature behavior can vary by room layout, placement, firmware, platform integration, and selected settings.
Proven Professional mmWave Presence Sensor Supplier
As a truly innovative smart home solution provider, LinknLink has taken a different path from day one. Unlike traditional smart home companies, we focus exclusively on two core product categories: smart gateways and presence sensors.
From the very beginning, we moved away from conventional PIR technology. Over the past three years, we have successfully developed multiple generations of our eMotion product line — starting with the first-generation 5.8 GHz eMotion, followed by the 24 GHz eMotion Pro, and advancing to our high-end 60 GHz eMotion Max and eMotion Ultra. These products have received broad recognition and positive feedback from the market.
The technology and expertise we have accumulated in mmWave presence sensing are proven, reliable, and truly differentiated. You can trust not only our technical foundation, but also the strong validation from real-world users and numerous smart home influencers who have reviewed and recommended our products.
Frequently Asked Questions
Which LinknLink device should I choose for Home Assistant automation?
Choose eMotion Air for flexible battery placement, eMotion Pro for presence sensing plus IR room control, eMotion Ultra for higher precision 60GHz sensing, and eRemote HA for local IR control through Home Assistant MQTT.
Does eMotion Air detect a person who is sitting still?
Yes. eMotion Air uses 24GHz mmWave radar to detect subtle micro-movements, so it can keep automations active when someone is sitting on a sofa, working at a desk, or staying still in a room.
What is the difference between eMotion Air and a PIR motion sensor?
A PIR sensor mainly reacts to larger motion and heat changes. eMotion Air is designed for presence sensing, so it can support more reliable lighting, comfort, and energy-saving automations when movement is minimal.
Can eMotion Air work with Home Assistant?
Yes. eMotion Air is positioned for Home Assistant users who want local access to presence, climate, light, and button entities for faster and more private automations.
Does eMotion Air need wiring?
No. eMotion Air uses 3xAAA batteries and supports magnetic, adhesive, screw, corner, and tabletop mounting, making it suitable for renters and rooms where wiring is not convenient.
Can eMotion Air trigger Alexa or Google Home routines?
Yes. eMotion Air can connect with Alexa or Google Home for presence-based triggers and voice status checks. Temperature and humidity automations may be limited by the platform.
Is eMotion Air privacy-friendly?
Yes. eMotion Air is not a camera. It uses sensor data for presence, light, temperature, humidity, and button actions instead of recording visual images.
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