Intro
Introducing the eMotion Pro as an all-in-one sensor (presence, light, IR) for under €40.
Unboxing
Device, USB-C cable, adhesive mount (no screws/magnets), and power requirements (5V 2A).
Setup
Pairing via LinknLink app (2.4GHz WiFi) and updating firmware.
Features
- 24GHz Radar: 2D detection based on distance (linear zones), not 3D spatial mapping like the Max/Ultra.
- Zones: Setting up distance-based zones (e.g., Desk: 0-2m).
- IR Blaster: Universal remote for TVs and ACs.
- Light Sensor: Lux measurement for automations.
Home Assistant Integration
Step-by-step local MQTT setup to pull presence, zones, and IR devices into HA.
Comparison
Pro (24GHz, 2D) vs. Max/Ultra (60GHz, 3D, multi-person tracking).
Conclusion
The Pro is perfect for single-person rooms (bedrooms, offices) due to its value, while Max/Ultra is better for living rooms. Pros: Local MQTT, price, all-in-one. Cons: Cable required, app translation, pet detection needs tuning.