1. Introduction
The UNI-T UT-D07B Bluetooth Adaptor Module is designed for wireless data transmission from compatible UNI-T multimeters to Android and iOS mobile devices. This adaptor utilizes Bluetooth 5.0 low power consumption technology to provide an effective connection for real-time data monitoring, continuous recording, and report generation through the iDMM2.0 application.
2. Setup
2.1 Battery Installation
The UT-D07B module requires two AAA 1.5V batteries for operation. Batteries are not included with the module.
- Locate the battery cover on the back of the UT-D07B module.
- Slide the battery cover downwards to open the compartment.
- Insert two AAA 1.5V batteries, ensuring correct polarity (+/-).
- Close the battery cover by sliding it back into place until it clicks securely.
2.2 Multimeter Connection
The UT-D07B is designed to connect directly to compatible UNI-T multimeters, specifically the UT61+ Series, UT161 Series, UT171 Series, and UT181 Series.
- Ensure your multimeter is powered off.
- Locate the designated port on your compatible UNI-T multimeter for the Bluetooth adaptor.
- Align the UT-D07B module with the port and gently push it in until it is firmly seated.
2.3 App Installation and Connection
To utilize the wireless transmission features, you need to install the iDMM2.0 App on your mobile device.
- **Scan to Download App**: Use your mobile device's camera or a QR code scanner to scan the QR code provided in Figure 5 to download the iDMM2.0 App.
- **Install App**: Follow the on-screen instructions to install the iDMM2.0 App on your Android or iOS device.
- **Connect**: Open the iDMM2.0 App. Ensure Bluetooth is enabled on your mobile device and the UT-D07B module is powered on and connected to the multimeter. The app should detect the UT-D07B module. Select it to connect.
- **Connection Succeeded**: Once connected, the app will display measurement data from your multimeter.
Precaution for Android users:
Before using the App on an Android system, you may need to turn on location information (GPS) for the Bluetooth connection to function correctly.
3. Operating Instructions
3.1 Powering On/Off
The UT-D07B module has an ON/OFF switch. Slide the switch to 'ON' to power on the module. Slide it to 'OFF' to power it off. A 'Work indicator' LED will illuminate when the module is active.
3.2 Real-time Data Monitoring
Once the UT-D07B is connected to your multimeter and the iDMM2.0 App, you can view real-time measurement data directly on your mobile device. This allows for convenient monitoring of electrical parameters from a safe distance.
3.3 Continuous Recording Function
The iDMM2.0 App supports continuous data recording. You can set the interval time for measurements and start/stop the recording as needed. The app provides a visual graph of the recorded data.
- In the iDMM2.0 App, navigate to the continuous recording section.
- Set the desired interval time for data collection.
- Click the 'Start' button (often represented by a red circle) to begin recording.
- Use the 'Pause' or 'Manual Stop' buttons to control the recording process.
- After recording, the app can generate and export reports of the continuous measurements.
3.4 App Camera Function and Report Export
The iDMM2.0 App also features a camera function that allows you to take photos of your test setup alongside the measured data. This data can then be compiled into various report formats.
- Within the app, access the camera function.
- Take a photo of your measurement setup. The app will associate this photo with the current measurement data.
- You can add notes to your test records.
- Export reports in formats such as PDF, CSV, or JPEG, which can include measured data, photos, and other relevant information.
4. Maintenance
4.1 Battery Replacement
When the 'Low voltage indicator' LED on the UT-D07B module illuminates, it indicates that the batteries are low and need to be replaced. Follow the battery installation steps in Section 2.1 to replace the AAA batteries.
4.2 Cleaning
To clean the UT-D07B module, wipe it with a soft, dry cloth. Do not use abrasive cleaners or solvents, as these may damage the device. Ensure the device is powered off before cleaning.
5. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Module does not power on. | Batteries are dead or incorrectly installed. | Replace batteries with new AAA 1.5V batteries, ensuring correct polarity. |
| Cannot connect to iDMM2.0 App (Android). | Location services (GPS) are not enabled. | Enable GPS/location services on your Android device. |
| Cannot connect to iDMM2.0 App (General). | Bluetooth is off on mobile device; module is off; module is out of range; app issue. | Ensure Bluetooth is on, module is on, device is within 10m range. Restart app/module. |
| Low voltage indicator is on. | Batteries are low. | Replace batteries. |
6. Specifications
| Feature | Specification |
|---|---|
| Type | Bluetooth module |
| Model Number | UT-D07B |
| Brand Name | UNI-T |
| DIY Supplies | Electrical |
| Origin | Mainland China |
| Bluetooth Version | Bluetooth 5.0 (low power consumption) |
| Effective Connection Distance | 10 meters |
| Power Supply | AAA battery X2 (1.5V) |
| Applicable Products | UT61+ Series, UT161 Series, UT171 Series, UT181 Series multimeters |
| Supported Mobile OS | Android 5.0 and above, iOS 10 and above |
| Applicable Mobile App | iDMM2.0 (UT61+ series) |
| Dimensions (L x W x H) | 10 cm x 5 cm x 3 cm (approximate) |
| Weight | 0.08 kg (approximate) |
7. User Tips
- Always ensure the UT-D07B module is securely attached to your multimeter before powering on to prevent accidental disconnections during measurements.
- For optimal performance and stable connection, keep your mobile device within the effective 10-meter range of the Bluetooth adaptor.
- Regularly check the 'Low voltage indicator' and replace batteries promptly to avoid interruptions during critical measurements.
- When ordering additional units or seeking support, refer to the product by its model number, UT-D07B, for accurate identification.
8. Warranty and Support
For warranty information, technical support, or service inquiries, please contact the UNI-T Official Store or your authorized UNI-T distributor. Keep your purchase receipt as proof of purchase.
UNI-T is committed to providing high-quality test and measurement solutions. For more information about UNI-T products and services, please visit the official UNI-T website or contact their customer service.





