LinknLink eMotion Ultra 60GHz mmWave Radar Presence Sensor

LinknLink eMotion Ultra is a 60GHz mmWave radar presence sensor that detects stationary and moving people, measures brightness, temperature and humidity, controls IR devices, and integrates locally with MQTT/Home Assistant and cloud services for smart automations.

Designed for modern smart homes, the eMotion Ultra replaces old PIR sensors with radar-based presence detection that senses tiny motions like breathing when the person faces the device and tracks up to four people across customizable zones. It combines environmental sensors, a 360° IR blaster and BLE hub capabilities so you can shrink system complexity while keeping privacy through local MQTT integration.

How accurate is the eMotion Ultra at detecting people who are sitting or sleeping?

The 60GHz mmWave radar detects micro-movements such as breathing and heartbeat when people are facing the sensor, so it will register presence even when traditional motion sensors remain idle. You can also define interference zones and filtering heights to reduce false positives from pets, curtains or ceiling fans.

• Stationary detection range: up to 4 m / 13 ft.
• Moving detection range: up to 6 m / 20 ft.
• Set interference zones in the LinknLink app to ignore non-human motion.
• Adjust filtering height to exclude pets or ceiling fixtures.

What automation and smart home platforms does the sensor work with?

eMotion Ultra operates locally and exposes all entities via MQTT for Home Assistant and other MQTT-capable platforms, enabling fast, private automations without cloud dependency. When online, it also connects to Alexa, Google Home and Siri for voice control and routine-based automations.

• Full MQTT support with local entity publishing (zones, presence, sensors).
• Works with Home Assistant for custom dashboards and automations.
• Cloud integration available for Alexa, Google Home and Siri controls.
• BLE hub supports up to 20 LinknLink accessories synchronized to MQTT.

Can it control TVs, air conditioners and other IR devices?

Yes — the built-in 360° IR blaster learns and transmits commands to common consumer electronics with an effective range up to 15 m (49 ft). Combine presence, brightness, and environmental triggers to automate AV systems, climate control and lights without adding extra remotes or sensors.

• 360° IR coverage with 15 m maximum range for universal device control.
• Use brightness, temperature or presence to trigger IR commands.
• Replace multiple remotes with a single programmable hub in the LinknLink app.
• Works in complex automations and Alexa/Google routines when cloud connected.

How do notifications, data history and accessory support work?

The device sends real-time push notifications for presence, brightness, temperature and humidity changes. Cloud storage keeps a three-year exportable history (CSV) for analysis, and the sensor acts as a BLE hub so you can add door sensors, curtain controllers and more.

• Instant alerts to your phone even when the app is closed.
• Three-year cloud history with CSV data export for offline analytics.
• BLE hub supports up to 20 LinknLink accessories synced to MQTT.
• Local operation prioritized for speed and privacy, cloud optional.

Who is this for? The LinknLink eMotion Ultra suits homeowners, integrators and DIY smart-home enthusiasts who want precise presence detection without sacrificing privacy, need combined environmental sensing and IR control, and prefer local MQTT/Home Assistant integration. It’s especially helpful where reliable detection of stationary occupants is important — bedrooms, living rooms, offices — and for setups that benefit from a single device replacing multiple sensors and remotes. Note: requires a certified 5V/2A power adapter and follows the installation guide in the LinknLink app.