meross Presence Sensor MS605 User Manual

1. Introduction

The meross MS605 Presence Sensor is an advanced smart home device designed to detect human presence with high precision using a combination of mmWave radar, Passive Infrared (PIR), and light sensors. This battery-powered sensor supports Matter over Thread, allowing seamless integration with various smart home ecosystems like HomeKit, Alexa, Google Home, and Home Assistant. Its IP67 rating ensures durability in diverse environments, and its flexible mounting options make it suitable for a wide range of applications.

2. Package Contents

Verify that all items are present in your package:

• 1 x Smart Presence Sensor (MS605)
• 1 x CR123A Battery
• 1 x Hook-and-loop Fastener
• 1 x Battery Compartment Opener
• 1 x User Manual

3. Key Features

• High Precision AI-Driven Presence Detection: Utilizes 3-in-1 mmWave, PIR, and light sensors with adaptive AI learning to accurately detect human presence, even when stationary.
• Seamless Matter Integration: Supports Matter over Thread for direct connection to Home Assistant, Alexa, Google, and HomeKit, requiring a compatible Matter and Thread hub for third-party platform integration and remote access.
• Battery-Powered and Flexible Mounting: Operates on a CR123A battery (included) with an estimated 3-year lifespan. Features a 90° foldable and 360° rotatable stand for versatile installation on ceilings, walls, or corners.
• IP67 Waterproof Rating: Designed for stable operation in various environments, including humid bathrooms, cold basements, hot attics, and outdoor areas for driveway security.
• Privacy Protection and Local Control: Ensures data privacy and low-latency control as it operates locally without constant internet reliance once configured. No video or audio recording capabilities.
• Personalized Smart Home Automation: Offers advanced app automation, custom sensitivity settings, and multi-sensor zoning. Divide the detection range into three customizable zones, each appearing as separate sensors on third-party platforms for enhanced automation.

4. Setup Guide

4.1 Initial Setup with Meross App

1. Download the Meross app from your device's app store.
2. Open the Meross app and follow the on-screen instructions to add a new device.
3. The sensor uses Bluetooth for initial setup. Ensure Bluetooth is enabled on your smartphone.
4. Once configured, the device will operate via Thread for a more efficient connection.

4.2 Matter and Thread Hub Requirements

To integrate the MS605 with third-party Matter-enabled apps (e.g., Apple Home, Alexa, Google Home, SmartThings, Home Assistant), you must have a hub that supports both Matter and Thread. This hub enables remote access and full functionality.

4.3 Pairing with Third-Party Platforms

1. Start the setup process within the Meross app.
2. Select your desired target app (e.g., Apple Home, Alexa, Google Home, SmartThings, Home Assistant).
3. Scan the QR code provided by the Meross app.
4. Ensure the amber light on the sensor is flashing during the Matter pairing process. If not, press and hold the button for 5 seconds to enter pairing mode.

4.4 Firmware Update (for Alexa)

For stable direct control with Alexa, it is recommended to update the sensor's firmware within the Meross app before pairing with Alexa.

5. Operation

5.1 Understanding Presence Detection

The MS605 uses low-power mmWave radar optimized for accurate detection by adapting to the scene, balancing efficient power use with fast triggers via Matter over Thread. It detects micro-movements like chest rise and fall, ensuring lights stay on even when you are still.

5.2 Customizing Detection Zones and Sensitivity

Through the Meross App, you can personalize your smart home experience by adjusting sensitivity and dividing the detection range into up to three customizable zones. Each zone can have independent presence/absence conditions and appears as a separate sensor on third-party platforms for advanced automation. Adjustment may take approximately 30 seconds to 3 minutes to stabilize.

5.3 Smart Home Automation Examples

• Lighting Control: Automatically turn lights on when presence is detected and off when absent. For example, in a bathroom, a night light can turn on at 6m and the main bathroom light at 4m.
• Appliance Control: Activate fans or AC units instantly when you return home or when presence is detected in a specific area.
• Security Alerts: Receive mobile notifications or trigger voice alarms via a Matter hub if human presence is detected in restricted areas.

6. Installation and Mounting

The MS605 sensor is designed for flexible installation. Its 90° foldable and 360° rotatable stand allows for mounting on ceilings, walls, or corners. The battery-powered design eliminates the need for complicated wiring, offering freedom to install it anywhere.

To prevent false triggers from pets or vacuum cleaners, you can adjust the sensor angle or partially cover the sensor with tape to limit its detection range.

7. Maintenance

7.1 Battery Information

The meross MS605 sensor is powered by one CR123A battery, which is included in the package. The battery is designed to last approximately 3 years under normal usage conditions (radar mode with PIR assist). Use the provided battery compartment opener to replace the battery when needed.

7.2 Waterproof Rating

The sensor has an IP67 waterproof and dustproof rating, ensuring stable operation in wet and dusty environments. This makes it suitable for both indoor and outdoor use.

8. Troubleshooting

• Firmware Update for Alexa: If experiencing issues with Alexa direct control, ensure the sensor's firmware is updated via the Meross app.
• Pairing Issues: If the amber light is not flashing during Matter pairing, press and hold the sensor button for 5 seconds to activate pairing mode.
• False Triggers: Adjust the sensor's angle or partially cover it with tape to prevent unwanted detections from pets or moving objects.
• Connectivity: Ensure your Matter and Thread hub is properly set up and within range of the sensor.

9. Specifications

10. Warranty and Support

The meross MS605 Presence Sensor comes with a 2-year manufacturer's warranty.

For technical assistance or support, please contact the meross Professional Expert Assistance Team:

• Email: support@meross.com
• Operating Hours (EST): Monday-Wednesday, Friday-Saturday, 10:30 AM - 7:30 PM