1. Introduction
Thank you for choosing the PLATINET Smart Bluetooth Body Scale PBPMKD558. This intelligent scale is designed to provide comprehensive body composition analysis, helping you monitor your health and fitness progress. It connects wirelessly via Bluetooth to your smartphone, allowing you to track various metrics through a dedicated application.
This manual provides detailed instructions for setting up, operating, and maintaining your scale to ensure accurate measurements and a long service life.
2. Safety Information
- Do not use this device if you have a pacemaker or other internal medical device.
- Do not use this device if you are pregnant.
- The scale surface can be slippery when wet. Ensure the surface is dry before stepping on it.
- Always place the scale on a hard, flat surface for accurate measurements. Avoid carpets or uneven floors.
- Do not jump on the scale or drop heavy objects on it.
- Keep the scale away from strong electromagnetic fields.
- This scale is intended for household use only and not for medical diagnosis or treatment.
- Keep batteries out of reach of children.
3. Package Contents
Please check the package contents to ensure all items are present:
- PLATINET Smart Bluetooth Body Scale PBPMKD558
- 2 x AAA Batteries
- User Manual (this document)

Image 1: Packaging of the PLATINET Smart Bluetooth Body Scale, showing the scale and a smartphone displaying the companion app.
4. Setup
4.1. Battery Installation
- Turn the scale over to access the battery compartment on the underside.
- Open the battery compartment cover.
- Insert the two AAA batteries, ensuring correct polarity (+/-).
- Close the battery compartment cover securely.
4.2. Initial Placement
Place the scale on a hard, flat, and stable surface. Avoid placing it on carpets, rugs, or uneven flooring, as this can affect measurement accuracy.
4.3. App Download and Installation
The PLATINET Smart Bluetooth Body Scale uses the free OKOK application for advanced body analysis and data tracking. The app is compatible with Android 4.3 or newer and iOS 7.0 or newer.
- Scan the QR code provided in the app section of the scale's packaging (if available) or search for "OKOK" in your device's app store (Google Play Store for Android, Apple App Store for iOS).
- Download and install the "OKOK" application.
- Open the app and follow the on-screen instructions to create your user profile. This typically includes entering your gender, age, height, and activity level.
4.4. Bluetooth Pairing
- Ensure Bluetooth is enabled on your smartphone.
- Open the OKOK application.
- Step onto the scale briefly to activate it. The display will light up.
- Within the OKOK app, navigate to the device pairing section (often found under "My Device" or "Add Device"). The app should automatically detect the scale.
- Select the detected scale (e.g., "PLATINET Scale" or a similar identifier) to complete the pairing process.
- Once paired, the scale's measurements will synchronize with the app.
5. Operating Instructions
5.1. Taking a Basic Weight Measurement
- Place the scale on a hard, flat surface.
- Gently step onto the scale with bare feet. Ensure your feet are positioned on the four metal electrodes for body composition analysis.
- Stand still until your weight is displayed and stabilizes on the LCD screen.
- If the app is open and paired, the data will automatically synchronize.

Image 2: The PLATINET Smart Bluetooth Body Scale displaying a weight measurement on its blue-backlit LCD screen.
5.2. Using the OKOK App for Body Analysis
The OKOK app provides detailed insights into your body composition. After taking a measurement with the app open and paired, the following metrics will be displayed and recorded:
- Weight
- Body Fat Level
- Body Water
- Muscle Mass
- Bone Mass
- Metabolism
- BMI (Body Mass Index)
- Celiac Disease (likely refers to a general health indicator, not a diagnostic tool)
- Proteins
- Degree of Obesity
- Body Age
- Fat-Free Weight
The app allows you to track your progress over time, set goals, and view historical data in charts and graphs.
5.3. Multiple User Memory
The scale supports up to 8 user profiles. When multiple users are set up in the OKOK app, the scale will attempt to identify the user based on their weight. If the weight is similar between users, the app may prompt you to select the correct user profile for the measurement.

Image 3: A side view of the PLATINET Smart Bluetooth Body Scale, highlighting its sleek black tempered glass surface and silver electrodes.
6. Maintenance
6.1. Cleaning
- Wipe the scale surface with a soft, damp cloth.
- Do not use abrasive cleaners or immerse the scale in water.
- Ensure the scale is completely dry before storage or next use.
6.2. Storage
Store the scale in a cool, dry place, away from direct sunlight and extreme temperatures.
6.3. Battery Replacement
When the "Lo" indicator appears on the display, it's time to replace the batteries. Follow the battery installation steps (Section 4.1) to replace the old batteries with new AAA batteries.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Scale does not turn on. | Dead or incorrectly installed batteries. | Check battery polarity or replace batteries. |
| "Lo" displayed on screen. | Low battery power. | Replace batteries. |
| "Err" displayed on screen. | Overload (weight exceeds 180 kg). | Reduce weight on the scale. |
| Inaccurate measurements. | Scale on uneven surface; not calibrated; user moving during measurement. | Place scale on a hard, flat surface. Step on and off briefly to calibrate to zero before measuring. Stand still. |
| Bluetooth connection issues. | Bluetooth off on phone; app not open; scale not activated; interference. | Ensure phone Bluetooth is on. Open OKOK app. Step on scale to activate. Move closer to scale. Restart phone/app. |
| Body composition data not showing in app. | Not standing with bare feet on electrodes; app not paired; user profile incomplete. | Ensure bare feet contact all four electrodes. Verify app is paired. Complete user profile in app. |
8. Specifications
| Model | PBPMKD558 |
| Brand | Platinet |
| Capacity | 180 kg (396 lbs / 28 st) |
| Division | 100 g (0.2 lb) |
| Display | LCD with Blue Backlight (75 x 31 mm) |
| Connectivity | Bluetooth Smart |
| App Compatibility | OKOK App (Android 4.3+, iOS 7.0+) |
| User Memory | 8 users |
| Power Source | 2 x AAA Batteries (included) |
| Material | Tempered Glass |
| Dimensions | Approx. 30 x 30 cm |
| Special Features | Auto On/Off, Auto Zero, Overload Indicator, Low Battery Indicator, Advanced Body Analysis |
9. Warranty and Support
For warranty information and customer support, please refer to the warranty card included with your product or visit the official Platinet website. If you encounter any issues not covered in this manual, please contact Platinet customer service for assistance.





