How to connect the Xiaomi Honeywell smoke sensor to the smart home system: full instructions

Xiaomi Honeywell Smoke Sensors (Models) JTYJ-GD-01LM/BW and JTYJ-GD-02LM/BW) These devices are among the most popular solutions for protecting the home from fires in the Mi Home ecosystem, combining high sensitivity to smoke, low power consumption and seamless integration with other Xiaomi gadgets such as Mi Gateway hubs or Mi speakers. AI However, many users have difficulty connecting for the first time: the sensor is not detected in the application, false alarms are constantly triggered or refuses to sync with other devices.

In this article, we will discuss all the stages of connection, from unpacking the sensor to configuring automatic scripts in Mi Home. Particular attention will be paid to typical errors (for example, incompatibility of regional versions of firmware with European hubs), which are not described in the official documentation, and you will find current schemes for placing sensors in the apartment, test recommendations and tips for integrating with smart home systems from other manufacturers (for example, Google Home or Apple HomeKit via Home Assistant).

1. Component and specifications of the sensor

Before connecting, it’s important to make sure you have a full delivery kit.The Xiaomi Honeywell smoke sensor box should have:

• 📦 The sensor itself (white or black version depending on the model)
• 🔋 CR123A battery (already installed but protected by transport film)
• 📄 Brief instruction in Chinese/English (no Russian version)
• 🔧 Strong bracket with bilateral tape and screws
• 🔄 Test button (built into the case)

Technical characteristics that affect connection and operation:

Note that the sensor doesn't work directly over Wi-Fi, it needs a Zigbee hub. If you don't have one, you'll have to buy a Xiaomi Mi Gateway 3 or similar from Aqara. Also check the regional firmware of the hub: Chinese versions (with a suffix). CN) It may not support European sensors, and vice versa.

Preparation for connection: location selection and compatibility check

Incorrect placement of the sensor is one of the main causes of false alarms or, conversely, the absence of a real danger.

• 🏠 Place it on the ceiling (not on the wall!) in the center of the room, so the smoke spreads evenly to the sensor.
• 🚫 Avoid areas near ventilation, air conditioning or windows (draughts can prevent smoke detection).
• 🍳 Place at least 1.5 m from the stove in the kitchen so that the steam from cooking does not cause false alarms.
• 🛏️ In the bedroom, the optimal place is above the door (but not closer than 30 cm to the wall).

Before installing, check the compatibility of your hub and sensor. for example, Xiaomi Mi Gateway 3 (model) ZNDMWG03LM) Honeywell supports sensors, but you may need to change the region in the Mi Home app to China mainland (even if you’re in Europe.

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If you already have Aqara sensors, you can combine them with Xiaomi Honeywell on a single Zigbee network – they are fully compatible with each other.

⚠️ Warning: Do not install the sensor in areas with high humidity (bathroom, sauna) or where the temperature may fall below 0°C or rise above 50°C. This will cause sensor malfunction and shorten battery life.

3. Step-by-step instructions for connecting via Mi Home

Now, let's get to the actual connection process. Make sure you have:

• 📱 Mi Home app installed (version no lower than 6.5.400).
• 🌐 The hub is connected to the same Wi-Fi network as your smartphone.
• 🔋 The sensor has a battery (transport film taken!).

Follow the instructions:

1. Open Mi Home and go to Devices → Add Device (+).
2. Wait for synchronization – a notification of a successful connection will appear in the application.

If the sensor is not located, try:

• 🔄 Restart the hub (turn off power for 10 seconds).
• 📶 Move the sensor closer to the hub (less than 5 meters).
• 🌍 Change the region in Mi Home to “China mainland” (in profile settings).

The latest update to Mi Home| has been installed

Hub connected to 2.4 GHz network (not 5 GHz!)|

Battery in sensor activated (film taken)|

The sensor is within a radius of 5 m from the hub-->

4. Set up notifications and automation scenarios

By default, the sensor will send push notifications to the smartphone when smoke is detected, but you can configure more complex scenarios, such as:

• 🔦 Automatic lights on when the sensor is triggered (via Xiaomi Yeelight).
• 🚨 Launching the Xiaomi Aqara Alarm siren or smart speaker with voice alert.
• 📹 The Xiaomi Mi Home Security Camera is now available.
• 🔌 Disconnection of Xiaomi Smart Plug sockets (for example, for electrical appliances).

To create a script:

1. In Mi Home, go to Profile → Automation → Create a script.
2. Select the condition: "Smoke sensor → Smoke detected".
3. Add actions (e.g., “Enable the siren” or “Send notification to the phone”).
4. Save the script and test it (click the test button on the sensor).

For advanced users: If you have a Home Assistant installed, you can integrate the sensor through a component. Zigbee2MQTT. This will allow for more flexible rules, such as shipping. SMS or phone call via Twilio.

5. Testing and calibration of the sensor

After connecting, be sure to test the sensor to make sure it works.

1. The sensor should emit a loud beep (about 85 dB), and a notification will appear in the Mi Home app.

To test the sensitivity, you can use test smoke (for example, from a fading cigarette or a special canister for testing sensors), place the smoke source at a distance of 20-30 cm from the sensor, the reaction should occur within 10-20 seconds.

⚠️ Warning: Do not use an open fire (lighter, matches) for testing! This can damage the sensor or cause a real fire. Also avoid aerosols (air fresheners, hairspray) - they can contaminate the optical sensor and reduce its sensitivity.

If the sensor is triggered too often (false alarms), try:

• 🧹 Clean the case from dust (especially holes for air circulation).
• 🔄 Move the sensor to another location (for example, farther from the kitchen).
• 🔧 Update the Hub’s firmware through Mi Home (Hub Settings section) → Update of the PO).

6. Solving common problems

Even after connecting correctly, users encounter common errors, and here are the most common ones and how to fix them:

If the sensor stopped responding to smoke, but the test button is working, the optical sensor may be contaminated.

1. Remove the sensor from the mount.
2. Gently blow the air holes (you can use a can of compressed air).
3. Wash the body with a dry wipe (do not use alcohol or wet fabrics!).

If nothing works, try resetting the sensor to factory settings, press and hold the test button for 10 seconds until you hear a double beep, and then repeat the connection process again.

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Xiaomi Honeywell sensors do not require regular calibration – their sensors self-configure within the first 24 hours of operation, however, after cleaning or moving the device, it can take 1-2 days to stabilize the sensitivity.

7.Integration with other smart home systems

Xiaomi Honeywell’s smoke sensor is not only available in the Mi Home ecosystem, but also includes a few integration options:

• 🏠 Google Home: Mi Home: Export the sensor to Google Assistant (Settings section) → Work with other services, and then it can be used in Google Routines scripts.
• 🍎 Apple HomeKit: You’ll need a bridge, such as Home Assistant with HomeKit Controller or Athom Bridge plugin.
• 🔄 IFTTT: In Mi Home, activate integration with IFTTT Create an applet that will send notifications to Telegram or turn on Philips Hue smart lamps.

Integration with Home Assistant Zigbee2MQTT You'll need it:

1. Install Zigbee2MQTT server (for example, Raspberry Pi).
2. Connect the Zigbee Coordinator (for example, CC2652P).
3. Add a sensor to the network via a web interface Zigbee2MQTT.
4. Configure automation in Home Assistant using sensor data.

Example of code for configuration.yaml in Home Assistant:

binary_sensor:




- platform: mqtt




name: "Xiaomi Smoke Alarm"




state_topic: "zigbee2mqtt/0x12345678/smoke"




device_class: smoke




payload_on: true




payload_off: false

8. Maintenance and replacement of the battery

Xiaomi Honeywell Smoke Sensor is designed for 5 years of operation from a single battery CR123A. But its life is dependent on the frequency of the fires and the temperature in the room, and the signs that the battery is running out:

• 🔋 The sensor is periodically disconnected from the Zigbee network.
• 🔔 The sound signal is getting quieter.
• ⚠️ In the Mi Home app, a notification appears “Low battery charge".

For battery replacement:

1. Remove the sensor from the mount, turning it counterclockwise.
2. Remove the old battery by pressing the lock in the battery compartment.
3. Install a new battery CR123A (Panasonic or Duracell, for example, observing polarity.
4. Close the lid and wait for the beep (one short squeak).
5. Check the connection in Mi Home – the sensor should automatically sync.

⚠️ Note: Use only original batteries CR123A 3V batteries with other voltages (e.g., batteries with different voltages, CR123 3.6V) can damage the sensor electronic board. Also avoid rechargeable batteries - they do not provide stable voltage.

Once the battery is replaced, the sensor can falsely work 1-2 times, which is normal. Give it 10-15 minutes to stabilize.

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Don’t throw old batteries into regular trash! CR123A They contain lithium and are disposed of as hazardous waste, and take them to the battery reception points (e.g. M. Video or El Dorado stores).

FAQ: Frequently Asked Questions