Meross Smart Presence Sensor MS605
A Thread-based, triple-sensor presence detector with flexible mounting, long battery life, and customizable multi-zone detection for precise whole-home automations.
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Information
| Maker | Meross |
| Category | Occupancy Sensor |
| Status | released |
| Product Page | https://shop.meross.com/products/thread-presence-sensor-ms605 |
| Date Released | 2025-11-20 |
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This upgraded Matter-over-Thread presence sensor combines radar, infrared, and ambient light detection to deliver highly accurate motion and presence sensing without relying on Wi-Fi or a proprietary hub.
The MS605 uses a Nordic Thread chipset and merges millimetre-wave radar with infrared detection to recognize both subtle human presence and typical motion. A built-in light sensor reports real-time brightness changes to Matter platforms, enabling more responsive automations. The foldable, fully rotatable stand supports ceiling, wall, or corner placement, while the IP67 waterproof housing and 3-year CR123A battery allow it to function reliably in areas ranging from humid bathrooms to cold basements and hot attics. It detects motion up to 6 m and precise presence within 4 m, making it suitable for anything from bedrooms to studies.
Through Matter over Thread, it connects directly to Apple Home, Google Home, Alexa, SmartThings, and Home Assistant, offering low-latency, local-only control. In the Meross app, the sensing area can be divided into three customizable zones that appear as separate sensors in third-party platforms, allowing layered automations such as lighting sequences or presence-based scene changes.
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Articles mentioning Meross Smart Presence Sensor MS605
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Mar 30, 2026What is mmWave and how does it make your home smarter?
mmWave presence sensors use radar instead of old-school motion detection, letting your smart home know when someone is actually still in the room, not just when they wander past it. Here’s how mmWave works, where it shines, and why it’s one of the best upgrades for smarter lighting and automation.
Mar 30, 2026 -
Mar 2, 2026The best Matter-compatible mmWave presence sensors
Eliminate automation misfires and nuisance alerts for good with ultra-precise mmWave radar technology.
Mar 2, 2026 -
Nov 19, 2025Meross introduces Matter-over-Thread presence sensor MS605 with Zone detection
A more affordable presence sensor with Thread connectivity.
Nov 19, 2025
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Specifications
| Manufacturer Part Number | 42020110 |
| Label | Smart Presence Sensor |
| Certification ID | CSA25952MAT47268-24 |
| Latest Firmware Version | 1.1.19 |
| Matter Version | 1.4 |
| Support URL | https://www.meross.com/en-gc/support/contact/ticket |
| Network | Thread, Bluetooth |
| Thread Device Type | Sleepy End Device |
| Market | Consumer |
| Software Versions |
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Firmware Version
The latest certified firmware version for this product.
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| Hardware Version | 9.0 |
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Compliance Document
This is the official XML document certifying compliance.
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| Matter Specification Version | 1.4 |
| Transport Interface | |
| Primary Device Type ID | |
| Battery Type | CR123A |