1. Introduction
Thank you for choosing the atolla 328Ft Digital Laser Measurement Tool. This device is designed for precise distance, area, and volume measurements, offering various functions to assist in professional and DIY projects. Please read this manual thoroughly before use to ensure safe and optimal operation.

Image: The atolla 328Ft Digital Laser Measurement Tool, showing the device, wrist strap, and two AAA batteries.
2. Safety Information
This device emits a Class II laser. Observe the following safety precautions:
- Do not stare directly into the laser beam.
- Do not aim the laser beam at people or animals.
- Avoid using the device in explosive environments.
- Keep the device out of reach of children.
- Do not attempt to modify or disassemble the device.
- Use only specified batteries.
3. Product Overview
Familiarize yourself with the components and display of your laser measurement tool.
3.1 Function Buttons

Image: A detailed diagram illustrating the function buttons on the atolla laser measurement tool, including ON/READ, Area/Volume/Indirect Measurement, Reference/Mute, Addition (+)/Subtraction (-)/Unit, History, and Return/OFF.
- ON/READ: Powers on the device, activates laser, initiates measurement.
- Area/Volume/Indirect Measurement: Cycles through measurement modes.
- Reference/Mute: Changes measurement reference point (front/back) or mutes sound.
- +/-/UNIT: Switches between addition/subtraction mode or changes measurement units (m/in/ft/ft+in).
- History: Accesses stored measurement records.
- OFF/Return: Powers off the device or returns to the previous screen.
3.2 Display Icons
The LCD backlit display shows measurement data, mode indicators, battery status, and other relevant information for clear readability in various conditions.
4. Setup
4.1 Battery Installation
- Open the battery compartment cover on the back of the device.
- Insert two AAA alkaline batteries, ensuring correct polarity (+/-).
- Close the battery compartment cover securely.
4.2 Initial Power On
Press the ON/READ button to power on the device. The display will illuminate, and the device will be ready for use.
5. Operating Instructions
5.1 Basic Distance Measurement
- Point the laser at the target.
- Press the ON/READ button once to activate the laser.
- Press the ON/READ button again to take a measurement. The result will be displayed on the screen.
5.2 Changing Measurement Units
Press the UNIT button to cycle through available units: meters (m), inches (in), feet (ft), and feet+inches (ft+in).

Image: The device display showing various unit options (m, ft, in, ft/in) for measurement results.
5.3 Setting Reference Points
The device can measure from its front or back edge. Press the Reference button to switch between these two reference points. An icon on the display will indicate the active reference point.

Image: A visual representation of the two reference points (front and back) on the laser measurement tool, indicating where measurements originate.
5.4 Mute Function
To mute the device's sound, press and hold the Mute button. Repeat to unmute.

Image: The atolla laser measurement tool being used in a quiet environment, highlighting its mute function.
6. Measurement Modes
Press the Area/Volume/Indirect Measurement button to cycle through the following modes:

Image: Illustrations demonstrating the four primary measurement modes: single distance, area calculation, volume calculation, and Pythagorean theorem for indirect height measurement.
6.1 Single Distance Measurement
Measures the linear distance between two points. (Refer to 5.1 Basic Distance Measurement).
6.2 Area Measurement
- Select Area mode.
- Measure the length.
- Measure the width. The device will automatically calculate and display the area.
6.3 Volume Measurement
- Select Volume mode.
- Measure the length.
- Measure the width.
- Measure the height. The device will automatically calculate and display the volume.
6.4 Pythagorean Measurement (Indirect Measurement)
Used to measure heights or distances indirectly when direct measurement is obstructed. Follow the on-screen prompts to take the required measurements (e.g., hypotenuse and one leg for height calculation).
6.5 Continuous Measurement (Min/Max)
In this mode, the device continuously measures as you move it, displaying the current, minimum, and maximum distances. This is useful for finding the shortest or longest distance to a surface.

Image: The device performing continuous measurement, illustrating how it tracks minimum and maximum distances as the user moves the tool.
6.6 Addition and Subtraction
After taking a measurement, press the +/- button to enter addition or subtraction mode. Take another measurement, and the device will add or subtract it from the previous result.
6.7 Memory Storage
The device can store up to 20 sets of measurement data. Press the History button to view stored records.

Image: The device display showing multiple stored measurements and examples of unit switching and addition/subtraction calculations.
7. Maintenance
- Clean the device with a soft, damp cloth. Do not use abrasive cleaners or solvents.
- Keep the laser lens clean and free from dust.
- Remove batteries if the device will not be used for an extended period.
- Store the device in a dry, cool place, away from direct sunlight and extreme temperatures.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Device does not power on | Low or incorrectly installed batteries | Replace batteries or check polarity. |
| Inaccurate measurements | Unstable surface, obstructed laser, incorrect reference point, environmental factors (e.g., strong sunlight) | Ensure stable measurement, clear laser path, correct reference point. Avoid strong light. Calibrate if necessary (refer to advanced settings in user reviews for calibration info). |
| Laser not visible | Strong ambient light, long distance | Use in lower light conditions or at shorter distances. |
| Error message on display | Measurement out of range, internal error | Move closer to target, restart device. If error persists, contact support. |
9. Specifications
- Brand: atolla
- Model: T201-100
- Measuring Range: 328ft / 100m
- Accuracy: ±2mm
- Laser Class: Class II, <1mW
- Units: m / in / ft / ft+in
- Measurement Modes: Distance, Area, Volume, Pythagorean, Continuous (Min/Max)
- Memory Storage: Up to 20 records
- Features: LCD Backlit Display, Mute Function, 2 Bubble Levels, Addition/Subtraction
- Power Supply: 2 x AAA Alkaline Batteries (included)
- Water Resistance: IP54 (Waterproof and Dustproof)
- Product Dimensions: 4.98 x 1.97 x 1.12 inches
- Item Weight: 4.5 ounces / 127 Grams
- Color: Black, Red
- Material: Plastic
10. Warranty and Support
For warranty information, technical support, or service inquiries, please refer to the documentation included with your purchase or contact atolla customer service directly. Keep your purchase receipt as proof of purchase.




