1. Introduction
Thank you for choosing the SNAKOL Laser Distance Meter. This device is a highly accurate and portable tool designed for various measurement tasks, including distance, area, volume, and indirect Pythagorean calculations. It features millimeter accuracy and multiple measurement modes to enhance efficiency in your work.
This manual provides essential information for the safe and effective operation of your laser distance meter. Please read it thoroughly before use and keep it for future reference.

2. Safety Information
WARNING: This device emits a Class 2 laser. Do not look directly into the laser beam.
- Avoid direct eye exposure to the laser beam.
- Do not disassemble or modify the device. Repairs should only be performed by authorized personnel.
- Keep the device out of reach of children.
- Do not use the device in explosive environments or near flammable materials.
- Ensure the battery compartment is securely closed during operation.

3. Product Components
The SNAKOL Laser Distance Meter package typically includes:
- Laser Distance Meter (SK-50, SK-70, SK-100, or SK-120 model)
- Operation Instruction Manual (English and Chinese)
- Watch cord/Lanyard
- Retail box
Batteries (2x AAA 1.5V) are generally not included and must be purchased separately.

4. Setup and Battery Installation
Your SNAKOL Laser Distance Meter requires two AAA 1.5V batteries for operation.
- Locate the battery compartment cover on the back of the device.
- Slide the cover open in the direction indicated by the arrow.
- Insert two AAA 1.5V batteries, ensuring correct polarity (+/-).
- Close the battery compartment cover securely until it clicks into place.

5. Operation
The device features a user-friendly interface with dedicated buttons for various functions.

5.1 Button Functions
- MEAS (Red Button): Power On / Initiate Measurement.
- FUNC (Function Key): Cycle through measurement modes (Single, Continuous, Area, Volume, Pythagorean).
- +/- (Addition and Subtraction Keys): Add or subtract measurements.
- Base Switching/Unit Switching Key: Change measurement reference point (front/rear) or units (m, in, ft, ft/in).
- CLEAR (Shutdown/Clear Key): Clear current measurement / Power Off.
5.2 Basic Measurement Modes
Press the MEAS button to turn on the device and activate the laser. Press FUNC to cycle through modes.
5.2.1 Single Measurement
Select the single measurement mode. Aim the laser at the target and press MEAS. The distance will be displayed.

5.2.2 Continuous Measurement
Select the continuous measurement mode. The device will continuously measure the distance as you move it. The display will show real-time distance, as well as maximum and minimum values.
5.2.3 Area Measurement
Select the area measurement mode. Measure the length and width separately. The device will automatically calculate and display the area.

5.2.4 Volume Measurement
Select the volume measurement mode. Measure the length, width, and height separately. The device will automatically calculate and display the volume.
5.2.5 Pythagorean (Hook) Measurement
Select the Pythagorean measurement mode. Measure the base (level) and the hypotenuse (beveled edge) separately. The device will automatically calculate the height.

6. Specifications
The following table outlines the technical specifications for the SNAKOL Laser Distance Meter series:
| Feature | SK-50 | SK-70 | SK-100 | SK-120 |
|---|---|---|---|---|
| Measurement Range | 0.05~50m | 0.05~70m | 0.05~100m | 0.05~120m |
| Measurement Accuracy | ±3mm | |||
| Display Accuracy | 1mm | |||
| Laser Rating | Class 2 | |||
| Laser Power | <1mW | |||
| Area, Volume Measurement | ✓ | |||
| Indirect Pythagorean Theorem | ✓ | |||
| Addition and Subtraction | ✓ | |||
| Memory Functions | ✓ | |||
| Continuous Measurement | ✓ | |||
| Maximum/minimum values | ✓ | |||
| Multi-line display | ✓ | |||
| Buzzer | ✓ | |||
| Historical data | 20 sets | |||
| Dust and Splash Resistance Rating | IP54 | |||
| Battery Life | 5000 measurements under fully charged condition | |||
| Battery Selection | 1.5V * 2 AAA | |||
| Laser Auto Off Time | 30 S | |||
| Instrument Auto Off Time | 3 min | |||
| Weight | 95g (with battery) | |||
| Dimension | 110*46*25mm | |||

7. Maintenance
- Cleaning: Use a soft, damp cloth to clean the device. Do not use abrasive cleaners or solvents.
- Lens Care: The optical lens is sensitive. Clean it gently with a soft cloth, similar to cleaning camera lenses.
- Storage: Store the device in a dry, cool place, away from direct sunlight and extreme temperatures. If storing for extended periods, remove the batteries to prevent leakage.
- Protection: The device has an IP54 rating, making it dustproof and splash-resistant. However, avoid submerging it in water or exposing it to heavy rain.

8. Troubleshooting
If you encounter issues with your SNAKOL Laser Distance Meter, refer to the following common problems and solutions:
- Device does not turn on: Check if the batteries are inserted correctly with the right polarity. Ensure the batteries have sufficient charge. Replace with new batteries if necessary.
- "Err 21" displayed: This error typically indicates that the measurement could not be completed successfully. This might be due to the laser beam being obstructed, the target surface being too reflective or too dark, or the measurement exceeding the device's range. Try measuring a different surface or within the specified range.
- Inaccurate measurements: Ensure the laser lens is clean. Verify the measurement reference point (front or rear of the device) is correctly set for your task.
- Laser not visible: The laser might be difficult to see in bright sunlight. Try using the device in shaded areas or indoors.
9. User Tips
- Bluetooth Connectivity: While some images may show a Bluetooth-like symbol, this model series does not support Bluetooth connectivity with tablets or mobile phones. The symbol is part of the general display template.
- Outdoor Use: For outdoor measurements, especially in bright conditions, try using a target plate to improve laser visibility and measurement accuracy.
- Stable Measurements: For critical measurements, place the device on a stable surface or use a tripod to minimize movement and ensure accuracy.
10. Warranty and Support
The SNAKOL Laser Distance Meter comes with a 2-year warranty from the date of purchase. This warranty covers manufacturing defects and malfunctions under normal use. It does not cover damage caused by misuse, accidents, unauthorized repairs, or normal wear and tear.
For warranty claims or technical support, please contact the retailer or SNAKOL customer service with your purchase details.