Matter & Thread Human Presence Sensor

In short: a flush-mounted 24 GHz radar presence sensor (AU$179) that connects over Matter over Thread to Apple Home, Google Home and Amazon Alexa. Unlike a PIR motion sensor it also detects someone sitting still, and it can tell the left and right halves of a room apart. It runs on mains power, so a licensed electrician installs it.

Key specifications

Quick answers

Presence sensor or motion sensor? A PIR motion sensor only reacts to movement, so lights can switch off while you sit still. This radar sensor also detects stationary presence, which suits bathrooms, studies and living rooms.

Do I need a hub? No Arklyfe hub. You need a Matter controller with a Thread border router, for example an Apple HomePod mini or a compatible Apple TV 4K, or a Google or Amazon device that supports Matter over Thread.

Can I install it myself? No. It is wired to mains power, so in Australia a licensed electrician must install it. Send this page to your electrician before ordering.

What can it automate? Lights, scenes or air conditioning that follow whether someone is in the room, for example bathroom lights that stay on while you shower. See the presence vs motion sensor guide.

The Arklyfe Matter & Thread Human Presence Sensor is a SAA-certified embedded presence sensor that speaks Matter over Thread directly, so it pairs natively with Apple Home, Google Home, Amazon Alexa and other Matter ecosystems without an extra hub or proprietary gateway. Unlike traditional PIR motion sensors that only react to movement, this sensor detects actual human presence: including someone sitting still on a sofa, reading in bed, or working at a desk, using 24G radar technology that distinguishes a person from a fan, curtain or shadow. Shipped from Melbourne for Australian electrical compliance, mounted via a Φ55mm ceiling or wall cutout.

The presence-vs-motion distinction is what changes day-to-day automation. A standard motion sensor triggers the lights when you walk in and turns them off after a fixed timer, which is why a PIR-driven bathroom light snaps off while you're still in the shower, and why a study light dims while you're sitting at the desk. The Arklyfe presence sensor detects movement, micro-movement and stationary presence, so the lights, HVAC or scenes follow the person, not the timer. Left and right zone detection further refines the trigger, letting one sensor drive different automations for two halves of a room.

Hardware-side, the sensor runs on a wide voltage input of 90–260Vac, 50/60Hz, so the same SKU fits AU 240V mains without extra adapters. The 24G anti-interference antenna resists Wi-Fi and Bluetooth signal pollution that destabilises cheaper radar sensors in dense smart-home environments. Embedded installation via a Φ55mm cutout keeps the sensor flush with ceiling or wall plasterboard, so it disappears into the architecture rather than sitting as a visible white plastic box.

✓ Matter over Thread certified, native with Apple Home, Google Home & Amazon Alexa, no extra hub. 24G radar presence detection, SAA-certified. | Browse the full Smart Sensor range →