Introduction
Thank you for choosing the Ozeri ProMax Digital Bath Scale. This scale is designed for accurate body weight measurement, featuring a high capacity of 560 lbs (255 kg) and precise 50-gram sensor technology. This manual provides essential information for proper setup, operation, and maintenance to ensure optimal performance and longevity of your device.
Safety Information
- Always place the scale on a hard, flat surface. Using it on carpet or uneven flooring may affect accuracy.
- The scale surface is made of tempered glass. Avoid dropping heavy objects on it or subjecting it to strong impacts, as this may cause damage or injury.
- Do not use the scale in excessively humid environments, such as directly after a shower, as moisture can damage internal components.
- Keep the scale out of reach of children.
- Do not attempt to disassemble or repair the scale yourself. Contact customer support for assistance.
- Ensure your feet are dry before stepping on the scale to prevent slipping.
What's in the Box
- Ozeri ProMax 560 lbs (255 kg) Body Weight Scale
- Instruction Manual
- 4 AAA Batteries
- Bonus Body Tape Measure
- Bonus Body Fat Caliper
Setup
- Battery Installation:
Locate the battery compartment on the underside of the scale. Open the cover and insert the 4 AAA batteries, ensuring correct polarity (+/-). Close the battery cover securely.

Image: The battery compartment on the underside of the scale, designed for 4 AAA batteries.
- Placement:
Place the scale on a firm, flat, and level surface. Avoid soft surfaces like carpets or rugs, as this can lead to inaccurate readings. Keep the scale away from excessive humidity.
- Unit Selection:
On the underside of the scale, there is a unit button. Press this button to cycle through the available measurement units: pounds (lbs), kilograms (kg), and stones (st). Select your preferred unit before weighing.

Image: The scale's digital display showing '0.0' and unit indicators for kilograms, pounds, and stones.
- Initial Calibration:
The Ozeri ProMax scale features auto-calibration. For the first use or after moving the scale, briefly step on it until a reading appears, then step off. The display will show '0.0' indicating it is ready for an accurate measurement.
Operating Instructions
- Weighing Yourself:
Once the scale displays '0.0', step onto the center of the scale with bare feet. Stand still and wait for the display to stabilize and show your weight. The large 4.3-inch blue backlight LCD ensures clear readability.

Image: A person's feet on the Ozeri ProMax scale, with the blue backlit display showing a weight measurement.
- Accuracy:
The scale measures to the nearest 0.1 lbs (0.05 kg). For consistent readings, ensure the scale is on a stable, hard surface and you stand still during measurement. Avoid placing objects on the scale that might cause it to activate and zero out at an incorrect weight.
- Using the Bonus Body Tape Measure and Fat Caliper:
The included body tape measure and fat caliper can be used to track body circumference and estimate body fat percentage. Refer to the separate instructions provided with these accessories for detailed usage guidelines.

Image: The bonus body tape measure and body fat caliper, included with the scale.
Maintenance
- Cleaning: Wipe the scale surface with a damp cloth and mild detergent. Do not use abrasive cleaners or immerse the scale in water.
- Battery Replacement: If the display shows a 'Lo' indicator, it's time to replace the batteries. Follow the battery installation steps in the Setup section.
- Storage: Store the scale in a cool, dry place. Avoid prolonged exposure to direct sunlight or extreme temperatures.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No display / 'Lo' | Low battery | Replace batteries (4 AAA). |
| 'Err' message | Overload or unstable reading | Ensure weight is within 560 lbs (255 kg) limit. Step off, wait for '0.0', then re-weigh. |
| Inaccurate readings | Scale on uneven surface, moved recently, or not properly calibrated. | Place on a hard, flat surface. Perform initial calibration (step on, step off, wait for '0.0'). |
Specifications
- Brand: Ozeri
- Model Number: ZB22
- Weight Limit: 560 Pounds (255 Kilograms)
- Readout Accuracy: 0.1 Pounds (0.05 Kilograms)
- Display Type: LCD with Blue Backlight
- Material: Tempered Glass
- Power Source: 4 AAA batteries (included)
- Product Dimensions: 12.75 x 1.5 x 12.25 inches
- Item Weight: 5.25 pounds

Image: A visual representation of the Ozeri ProMax scale's dimensions.
Warranty
Ozeri products are manufactured to the highest quality standards. For specific warranty details and terms, please refer to the warranty information provided with your purchase or visit the official Ozeri website.
Support
If you have any questions, concerns, or require assistance with your Ozeri ProMax scale, please contact Ozeri customer support through their official website or the contact information provided in your product packaging.





