Smart Sensors Review
Third Reality Zigbee Motion Sensor Review (2026)
Budget Zigbee motion sensor that's pet-friendly and plays nicely with most hubs.
Our verdict: Decent option to compare
★★★★★
$13-18 · Amazon return policy applies
Check Today's Price →At a glance
| Category | Smart Sensors |
|---|---|
| Our rating | ★★★★★ 4.0/5 |
| Price | $13-18 |
| Availability | Check current price on Amazon |
| Returns | Standard Amazon return policy applies |
| Best for | DIY Zigbee users who want reliable, cheap motion coverage across many rooms. |
Our take
Third Reality's Zigbee Motion Sensor is a low-cost PIR sensor popular in the Home Assistant and SmartThings communities for its reliability and price. It detects motion up to about 20 feet, runs roughly two years on two AAA batteries, and works with any Zigbee hub including Echo devices with a built-in hub. It needs a Zigbee hub and offers no native Wi-Fi or Matter connectivity.
What we like
- Very inexpensive, especially in multi-packs
- Works with a wide range of Zigbee hubs (Home Assistant, SmartThings, Hubitat, Echo)
- Pet-friendly detection option
- Around 2-year battery life on common AAA cells
What to keep in mind
- Requires a Zigbee hub; cannot connect directly to Wi-Fi
- Plastic build feels cheap compared to pricier brands
- No built-in light/lux sensor
Buy through Amazon and you're covered by their standard return policy. Check the live listing for today's price and real buyer reviews before you commit.
Sold on Amazon · Standard returns apply · Live price & reviews on the listing
Ready to look at Third Reality Zigbee Motion Sensor? Check current pricing, availability, and customer reviews on Amazon.
Check Today's Price →As an Amazon Associate, Smart Home Magazine earns from qualifying purchases. Smart Home Magazine is reader-supported. Some links on this site are affiliate links — we may earn a commission if you buy through them, at no extra cost to you. We only feature gear we'd recommend to a friend, and our opinions are our own.
Frequently asked questions
Is Third Reality Zigbee Motion Sensor worth it?
Third Reality's Zigbee Motion Sensor is a low-cost PIR sensor popular in the Home Assistant and SmartThings communities for its reliability and price. It detects motion up to about 20 feet, runs roughly two years on two AAA batteries, and works with any Zigbee hub including Echo We weigh real-world usefulness against price, and we note the downsides honestly. Check the live price and recent customer reviews on Amazon before deciding — both can change.
Where can I buy Third Reality Zigbee Motion Sensor?
Through Amazon, where the standard Amazon return policy applies. We link to the current listing so you always see up-to-date pricing and availability.
Who is Third Reality Zigbee Motion Sensor best for?
DIY Zigbee users who want reliable, cheap motion coverage across many rooms.
Is Third Reality Zigbee Motion Sensor the best in its category?
It's one we think is worth considering, but "best" depends on your needs and budget — compare it against the alternatives in our reviews before you buy.