Apollo MTR-1 Multi-Target Radar

Quick verdict

The MTR-1 is a sensor Swiss Army knife. Multi-target mmWave radar tracks multiple people in a room, while the onboard CO2, temperature, pressure, light, UV, and Bluetooth proxy sensors cover almost every environmental measurement you could want. ESPHome means it runs fully local with no cloud. Expect to spend some time tuning the radar zones, but the payoff is accurate presence detection that outperforms basic PIR sensors.

Standout: Multi-target mmWave radar with CO2, temperature, pressure, light, UV, and Bluetooth proxy, all in one ESPHome device.

Last checked: 2026-03-22

Compatibility snapshot

Why it stands out

• multi-target tracking mmWave radar detects multiple people and their positions in a room
• packed with sensors including CO2, temperature, pressure, light, UV, and Bluetooth proxy
• ESPHome firmware is fully open and locally controlled with zero cloud dependency

Reasons to hesitate

• mmWave tuning can require patience to get detection zones and sensitivity right
• WiFi-based, which adds to your wireless network load unlike Zigbee or Thread sensors
• no native voice assistant or Apple Home integration without Home Assistant

Best for

• Home Assistant users who want accurate room-level presence detection with multi-target tracking
• tinkerers who appreciate ESPHome's full customizability and the all-in-one sensor suite

Avoid if

• you want a simple plug-and-play motion sensor. This is a more advanced device that benefits from tuning
• you need native Apple Home or voice assistant support without Home Assistant

Privacy and local-control notes

Fully local via ESPHome. No cloud, no account, no data leaves your network. Radar-based presence detection means no camera or audio.

Home Assistant support: supported · integration path: ESPHome.

Buying reality check

Price notes: Mid-range for a presence sensor, but the sheer number of included sensors makes it excellent value compared to buying each separately.

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