
Option 1 · Meross
Meross Presence Sensor MS605
Catalog update date not recorded
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A summary of selected recorded differences between these presence sensors. Check the full specification table below for details and conditions.
These observations are derived from recorded catalog data and have not all been independently verified. Confirm details with the manufacturer before purchasing.
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Option 1 · Meross
Catalog update date not recorded
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What the catalog tells us
These counts describe the available data, not a quality score. More features do not automatically make a better device.
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Mark the specifications you care about. Open manufacturer sources for verification scope; fields without citations remain catalog data. Expand notes for other qualifications.
Showing 25 of 25 rows. “Not recorded” does not mean “No”.
Presence and absence state changes are pushed to the Matter platform, which is what raises the alert or runs the automation.
Presence and vacancy can trigger lights, HVAC, blinds, security or a notification through Shelly Smart Control, Matter or local webhooks.
Meross states the sensor needs no 2.4GHz Wi-Fi: it runs on Matter over Thread and the spec sheet lists Bluetooth as its only other radio. The word Wi-Fi in some marketplace titles is keyword stuffing, not a radio this model has.
Wi-Fi 6, 802.11 b/g/n/ax on 2401-2483 MHz.
Bluetooth 4.3, used only to pair and configure the sensor from the Meross app; the device then reports over Thread.
Bluetooth 5 LE is specified.
Shelly Presence Gen4 manufacturer product page →Coverage is a manufacturer maximum, not a measured result for every room. The page gives conflicting occupant limits in different sections; no exact occupant count is asserted here.
Document check only; not a hands-on test or verification of every regional or firmware variant.
Bluetooth 5 LE for onboarding.
Matter over Thread on a Nordic chipset. Meross states a hub that supports both Matter and Thread is required to add it to a third-party platform.
Zigbee 3.0 (802.15.4). A five-press on the button switches the firmware between Matter over Wi-Fi (the default) and Zigbee. Using the Zigbee radio needs a Zigbee coordinator.
The stated detection area is up to 42 square metres.
Shelly Presence Gen4 manufacturer product page →Coverage is a manufacturer maximum, not a measured result for every room. The page gives conflicting occupant limits in different sections; no exact occupant count is asserted here.
Document check only; not a hands-on test or verification of every regional or firmware variant.
The 6m range can be split into three zones in the Meross app, each with its own presence and absence conditions, and each appears as a separate sensor on third-party platforms so automations can key off distance. An AI auto-adjust pass filters interference from fans and air conditioners. | Automations built inside the Meross app itself need a Meross hub, which Meross says is still in development.
20 schedules, scripting, MQTT, 20 webhooks and local logic on the device, plus Matter occupancy for platform automations.
The sensor splits its range into distance zones and reports each one as its own occupancy sensor. It does not count people or track individuals inside a zone.
The sensor supports simultaneous detection of multiple occupants.
Shelly Presence Gen4 manufacturer product page →Coverage is a manufacturer maximum, not a measured result for every room. The page gives conflicting occupant limits in different sections; no exact occupant count is asserted here.
Document check only; not a hands-on test or verification of every regional or firmware variant.
Identifies up to 6 people at once and maps them onto up to 10 customizable detection zones.
Meross specifies motion detection up to 6m and precise static presence within 4m.
A battery-powered Thread end device, so it neither speaks Zigbee nor repeats traffic for other devices.
USB-C powered and able to join a Zigbee network, but Shelly's knowledge base does not say whether it repeats traffic as a Zigbee router.
Via Matter, through an Echo that acts as a Matter and Thread border router. Meross notes Alexa does not currently surface the sensor's light reading, only its presence state.
Via Matter. Shelly also lists the Alexa Motion Sensor capability.
Via Matter, with a HomePod or Apple TV acting as the Thread border router.
Via Matter
Via Matter. Meross lists Google Home among the platforms the sensor connects to directly over Matter.
Via Matter. Shelly also lists the Google Smart Home Occupancy Sensing trait.
Via Matter. Home Assistant is a certified Matter controller, and Meross names it as a supported platform for this sensor.
Via Matter. Shelly's knowledge base also lists Home Assistant as a supported platform, plus local MQTT, webhooks and an embedded web interface.
The sensor supports Matter over Thread.
Meross Presence Sensor MS605 manufacturer product page →Matter-over-Thread use requires a compatible controller and Thread border router. Light-sensor exposure depends on the ecosystem.
Document check only; not a hands-on test or verification of every regional or firmware variant.
Certified under the Matter 1.4 specification, with both the occupancy sensor and the light sensor exposed to Matter platforms.
Matter uses the Wi-Fi connection.
Shelly Presence Gen4 manufacturer product page →Coverage is a manufacturer maximum, not a measured result for every room. The page gives conflicting occupant limits in different sections; no exact occupant count is asserted here.
Document check only; not a hands-on test or verification of every regional or firmware variant.
Matter over Wi-Fi. CSA certificate CSA25E3FMAT48529-24, certified 2025-11-18, vendor 0x1490 product 0x1821.
Via Matter. Meross lists SmartThings, and notes that it exposes a single presence sensor there rather than the three zones other platforms see.
Via Matter. Shelly also lists the SmartThings Presence Sensor capability.
Battery powered by a single CR123A lithium cell (included), rated by Meross for 3 years. There is no wired or USB power option.
Continuous power is supplied through 5 V USB-C.
Shelly Presence Gen4 manufacturer product page →Coverage is a manufacturer maximum, not a measured result for every room. The page gives conflicting occupant limits in different sections; no exact occupant count is asserted here.
Document check only; not a hands-on test or verification of every regional or firmware variant.
Powered by USB-C at 5 VDC, 1 A. Nominal consumption 2.5 W, 3.5 W maximum. There is no battery option.
A light sensor is included.
Meross Presence Sensor MS605 manufacturer product page →Matter-over-Thread use requires a compatible controller and Thread border router. Light-sensor exposure depends on the ecosystem.
Document check only; not a hands-on test or verification of every regional or firmware variant.
Built-in ambient light sensor, reported live to the Matter platform as an illuminance reading for lux-aware lighting automations.
The light sensor reports dark, twilight and bright states.
Shelly Presence Gen4 manufacturer product page →Coverage is a manufacturer maximum, not a measured result for every room. The page gives conflicting occupant limits in different sections; no exact occupant count is asserted here.
Document check only; not a hands-on test or verification of every regional or firmware variant.
Built-in light sensor that reports dark, twilight and bright states for lighting-aware automations.
Radar and infrared sensing detect people.
Meross Presence Sensor MS605 manufacturer product page →Matter-over-Thread use requires a compatible controller and Thread border router. Light-sensor exposure depends on the ecosystem.
Document check only; not a hands-on test or verification of every regional or firmware variant.
24GHz mmWave Doppler radar paired with a PIR infrared sensor, so it holds a room occupied on breathing-level movement while the infrared side filters heatless motion such as curtains or a robot vacuum.
Presence detection uses millimetre-wave radar.
Shelly Presence Gen4 manufacturer product page →Coverage is a manufacturer maximum, not a measured result for every room. The page gives conflicting occupant limits in different sections; no exact occupant count is asserted here.
Document check only; not a hands-on test or verification of every regional or firmware variant.
60-64 GHz mmWave radar that detects people who are sitting still, with still detection out to 3 m and tracking of up to 6 people across up to 10 zones.
| Specification | Meross Presence Sensor MS605 | Shelly Presence Gen4 |
|---|---|---|
| Alerts | ||
| No | No | |
YesCatalog notePresence and absence state changes are pushed to the Matter platform, which is what raises the alert or runs the automation. | YesCatalog notePresence and vacancy can trigger lights, HVAC, blinds, security or a notification through Shelly Smart Control, Matter or local webhooks. | |
| Connectivity | ||
NoCatalog noteMeross states the sensor needs no 2.4GHz Wi-Fi: it runs on Matter over Thread and the spec sheet lists Bluetooth as its only other radio. The word Wi-Fi in some marketplace titles is keyword stuffing, not a radio this model has. | YesCatalog noteWi-Fi 6, 802.11 b/g/n/ax on 2401-2483 MHz. | |
| No | No | |
For PairingCatalog noteBluetooth 4.3, used only to pair and configure the sensor from the Meross app; the device then reports over Thread. | YesManufacturer sourceBluetooth 5 LE is specified. Shelly Presence Gen4 manufacturer product page →
Coverage is a manufacturer maximum, not a measured result for every room. The page gives conflicting occupant limits in different sections; no exact occupant count is asserted here. Document check only; not a hands-on test or verification of every regional or firmware variant. Catalog noteBluetooth 5 LE for onboarding. | |
Thread Border Router requiredCatalog noteMatter over Thread on a Nordic chipset. Meross states a hub that supports both Matter and Thread is required to add it to a third-party platform. | No | |
| No | No | |
| No | Zigbee Hub requiredCatalog noteZigbee 3.0 (802.15.4). A five-press on the button switches the firmware between Matter over Wi-Fi (the default) and Zigbee. Using the Zigbee radio needs a Zigbee coordinator. | |
| Features | ||
| Not recorded | 140° Horizontal / 120° Vertical | |
| Not recorded | 42 m²Manufacturer sourceThe stated detection area is up to 42 square metres. Shelly Presence Gen4 manufacturer product page →
Coverage is a manufacturer maximum, not a measured result for every room. The page gives conflicting occupant limits in different sections; no exact occupant count is asserted here. Document check only; not a hands-on test or verification of every regional or firmware variant. | |
YesCatalog noteThe 6m range can be split into three zones in the Meross app, each with its own presence and absence conditions, and each appears as a separate sensor on third-party platforms so automations can key off distance. An AI auto-adjust pass filters interference from fans and air conditioners. | Automations built inside the Meross app itself need a Meross hub, which Meross says is still in development. | YesCatalog note20 schedules, scripting, MQTT, 20 webhooks and local logic on the device, plus Matter occupancy for platform automations. | |
| Not recorded | Not recorded | |
NoCatalog noteThe sensor splits its range into distance zones and reports each one as its own occupancy sensor. It does not count people or track individuals inside a zone. | YesManufacturer sourceThe sensor supports simultaneous detection of multiple occupants. Shelly Presence Gen4 manufacturer product page →
Coverage is a manufacturer maximum, not a measured result for every room. The page gives conflicting occupant limits in different sections; no exact occupant count is asserted here. Document check only; not a hands-on test or verification of every regional or firmware variant. Catalog noteIdentifies up to 6 people at once and maps them onto up to 10 customizable detection zones. | |
6m / 19ftCatalog noteMeross specifies motion detection up to 6m and precise static presence within 4m. | 8m / 26ft | |
| No | No | |
NoCatalog noteA battery-powered Thread end device, so it neither speaks Zigbee nor repeats traffic for other devices. | Not recordedCatalog noteUSB-C powered and able to join a Zigbee network, but Shelly's knowledge base does not say whether it repeats traffic as a Zigbee router. | |
| Integrations | ||
YesCatalog noteVia Matter, through an Echo that acts as a Matter and Thread border router. Meross notes Alexa does not currently surface the sensor's light reading, only its presence state. | YesCatalog noteVia Matter. Shelly also lists the Alexa Motion Sensor capability. | |
YesCatalog noteVia Matter, with a HomePod or Apple TV acting as the Thread border router. | YesCatalog noteVia Matter | |
YesCatalog noteVia Matter. Meross lists Google Home among the platforms the sensor connects to directly over Matter. | YesCatalog noteVia Matter. Shelly also lists the Google Smart Home Occupancy Sensing trait. | |
YesCatalog noteVia Matter. Home Assistant is a certified Matter controller, and Meross names it as a supported platform for this sensor. | YesCatalog noteVia Matter. Shelly's knowledge base also lists Home Assistant as a supported platform, plus local MQTT, webhooks and an embedded web interface. | |
YesManufacturer sourceThe sensor supports Matter over Thread. Meross Presence Sensor MS605 manufacturer product page →
Matter-over-Thread use requires a compatible controller and Thread border router. Light-sensor exposure depends on the ecosystem. Document check only; not a hands-on test or verification of every regional or firmware variant. Catalog noteCertified under the Matter 1.4 specification, with both the occupancy sensor and the light sensor exposed to Matter platforms. | YesManufacturer sourceMatter uses the Wi-Fi connection. Shelly Presence Gen4 manufacturer product page →
Coverage is a manufacturer maximum, not a measured result for every room. The page gives conflicting occupant limits in different sections; no exact occupant count is asserted here. Document check only; not a hands-on test or verification of every regional or firmware variant. Catalog noteMatter over Wi-Fi. CSA certificate CSA25E3FMAT48529-24, certified 2025-11-18, vendor 0x1490 product 0x1821. | |
YesCatalog noteVia Matter. Meross lists SmartThings, and notes that it exposes a single presence sensor there rather than the three zones other platforms see. | YesCatalog noteVia Matter. Shelly also lists the SmartThings Presence Sensor capability. | |
| Power | ||
NoCatalog noteBattery powered by a single CR123A lithium cell (included), rated by Meross for 3 years. There is no wired or USB power option. | YesManufacturer sourceContinuous power is supplied through 5 V USB-C. Shelly Presence Gen4 manufacturer product page →
Coverage is a manufacturer maximum, not a measured result for every room. The page gives conflicting occupant limits in different sections; no exact occupant count is asserted here. Document check only; not a hands-on test or verification of every regional or firmware variant. Catalog notePowered by USB-C at 5 VDC, 1 A. Nominal consumption 2.5 W, 3.5 W maximum. There is no battery option. | |
| Sensors | ||
YesManufacturer sourceA light sensor is included. Meross Presence Sensor MS605 manufacturer product page →
Matter-over-Thread use requires a compatible controller and Thread border router. Light-sensor exposure depends on the ecosystem. Document check only; not a hands-on test or verification of every regional or firmware variant. Catalog noteBuilt-in ambient light sensor, reported live to the Matter platform as an illuminance reading for lux-aware lighting automations. | YesManufacturer sourceThe light sensor reports dark, twilight and bright states. Shelly Presence Gen4 manufacturer product page →
Coverage is a manufacturer maximum, not a measured result for every room. The page gives conflicting occupant limits in different sections; no exact occupant count is asserted here. Document check only; not a hands-on test or verification of every regional or firmware variant. Catalog noteBuilt-in light sensor that reports dark, twilight and bright states for lighting-aware automations. | |
YesManufacturer sourceRadar and infrared sensing detect people. Meross Presence Sensor MS605 manufacturer product page →
Matter-over-Thread use requires a compatible controller and Thread border router. Light-sensor exposure depends on the ecosystem. Document check only; not a hands-on test or verification of every regional or firmware variant. Catalog note24GHz mmWave Doppler radar paired with a PIR infrared sensor, so it holds a room occupied on breathing-level movement while the infrared side filters heatless motion such as curtains or a robot vacuum. | YesManufacturer sourcePresence detection uses millimetre-wave radar. Shelly Presence Gen4 manufacturer product page →
Coverage is a manufacturer maximum, not a measured result for every room. The page gives conflicting occupant limits in different sections; no exact occupant count is asserted here. Document check only; not a hands-on test or verification of every regional or firmware variant. Catalog note60-64 GHz mmWave radar that detects people who are sitting still, with still detection out to 3 m and tracking of up to 6 people across up to 10 zones. | |
The table matches specifications by section and field. It preserves notes, separates missing data from explicit “No” values, and keeps qualifications attached to their values. No overall winner is assigned from feature counts.
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