Access the Device
This section describes how to access the status and configuration page of the device via NFC or Bluetooth. NFC and Bluetooth are both enabled by default.
Access the Device via NFC
- Download and install “Milesight ToolBox” App from Google Play or Apple Store on an NFC-supported smartphone.
- Enable NFC function on the smartphone.
- Launch Milesight ToolBox, and select the default mode as NFC.
- Attach the smart phone with NFC area to the device and click
to read device information. Basic information,
data, and settings of the device will be shown on the Milesight ToolBox App
if it’s recognized successfully. - Adjust the settings on the App, then attach the smartphone with NFC area to the device and click Write to write the settings. After writing, reread the device to check if the configuration is written well.
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Ensure the location of smartphone NFC area and it’s recommended to take off phone case.
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If the smart phone fails to read/write configurations via NFC, keep the phone away and back to try again.
- The default device password is 123456. Please change a new password for security.

Access the Device via Bluetooth
- Press button 3 once to turn on the device. The device can also be turned on by NFC.
- Press buttons 4 and 5 together once to turn on the Bluetooth for one minute.
Note: If the phone fails to connect to the device within one minute, Bluetooth will automatically turn off and must be reactivated by pressing the buttons again.
- Download and install “Milesight ToolBox” App from Google Play or Apple Store on an Bluetooth-supported smartphone.
- Enable Bluetooth and location functions on the smartphone.
- Launch Milesight ToolBox, and select the default mode as Bluetooth.
- Click
to scan the devices around and select
the target device to connect. The default Bluetooth name is WT401 -XXXXXX(5th to 11st characters of the device SN) and the default device password is 123456. - Once connected, the basic information, data, and settings of the device will be displayed in the Milesight ToolBox App if recognized successfully.
- Adjust the settings on the App, then click Write to write the settings. After writing, reread the device to check if the configuration is written well.
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The Bluetooth connection will be terminated if there’s no data interaction within 3 minutes. Please connect again.
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The device can connect to only one phone via Bluetooth. For example, if the device is connected to smart phone A via Bluetooth, the connection will be terminated after it is connected to smartphone B.
- The default device password is 123456. Please change a new password for security.
