Apollo MSR-2

Quick verdict

Apollo MSR-2 is best for advanced home assistant users who want richer room telemetry. The main appeal is excellent home assistant fit, while the main caveat is still more enthusiast-oriented than mainstream smart-home sensors.

Standout: Dense multi-sensor package for Home Assistant users who want more than simple motion triggers.

Last checked: 2026-03-22

Compatibility snapshot

Why it stands out

• excellent Home Assistant fit
• rich sensor set beyond simple presence detection
• strong local-first behavior

Reasons to hesitate

• still more enthusiast-oriented than mainstream smart-home sensors
• setup and placement matter a lot
• not a good pick if you do not want Home Assistant-style tinkering

Best for

• advanced Home Assistant users who want richer room telemetry
• buyers who want local presence plus extra environmental sensing

Avoid if

• you want the simplest possible occupancy sensor
• you mostly care about Apple Home, Google Home, or Alexa app polish

Privacy and local-control notes

A strong privacy and local-control option because core value comes from local ESPHome integration, not account-tied cloud services.

Home Assistant support: supported · integration path: ESPHome / native Home Assistant.

Buying reality check

Price notes: Good value for buyers who will actually use the extra sensing data; overkill if you only want basic room occupancy.

Compare side by side: see presence sensor comparisons →