Motion & Presence Sensors

Presence and motion sensors for lighting automation, security and energy saving. Free shipping on every order.

mmWave or PIR?

This is the choice that matters, and most people get it wrong.

PIR motion sensors detect movement. Sit still for two minutes and the lights go off — which is why motion-triggered lighting is so annoying in a home office or living room.

mmWave radar detects presence. It knows someone's in the room even reading, working or watching TV. That's what makes automation actually usable in spaces where people sit still.

What we carry

• 24GHz mmWave Presence Sensor — from $41.99
  Zigbee or WiFi. Built-in light sensing, works with Home Assistant. No false triggers from pets under 10 lbs.
• SONOFF mmWave Sensor — $51.99
  Genuine SONOFF hardware with Matter support, so it works with Apple Home as well as Alexa and Google.
• Budget mmWave + PIR — from $29.99
  Combines both technologies for extra accuracy. Battery or USB powered. Tuya or Zigbee2MQTT versions.
• LinknLink eMotion Pro — $87.99
  mmWave presence plus a built-in IR blaster, so it can control your AC or TV automatically based on occupancy. No hub needed.

Planning an automation setup? Email hello@buyhomeautomation.com or call (860) 254-1799 — we'll help you pick before you buy.