1. Introduction
The TACKLIFE S5-50 is a versatile and precise laser rangefinder designed for accurate distance measurements up to 50 meters. This device is ideal for various applications, including construction, interior design, and DIY projects. It features a robust design, multiple measurement modes, and convenient USB charging, making it an essential tool for professionals and enthusiasts alike.

2. Product Overview
2.1 Key Features
- Measurement Range: 0.05 to 50 meters (0.16 to 164 feet)
- High Accuracy: ±2 mm precision
- Electronic Angle Sensor: Measures angles from -90.0° to 90.0° for tilt compensation and indirect measurements.
- Multiple Measurement Modes: Individual, Continuous (Min/Max), Area, Volume, Pythagorean (single and double).
- Data Storage: Stores up to 99 measurement records.
- Unit Switching: Easily switch between Meters (m), Inches (in), Feet (ft), and Feet+Inches (ft+in).
- Self-Calibration: Allows for fine-tuning of accuracy.
- Reference Level Adjustment: Measure from the front or rear edge of the device.
- Automatic Power Off: Device powers off after 150 seconds of inactivity to conserve battery.
- Automatic Laser Shutdown: Laser turns off after 20 seconds of inactivity.
- Rechargeable: Integrated battery with USB charging capability.
- Silent Mode: Option to mute button sounds.
- Durable Design: IP54 dust and splash-proof rating, made from ABS material.

2.2 Device Layout and Button Functions

Screen Display Elements:
- Record Indicator: Shows if a measurement is being recorded.
- Laser ON Indicator: Indicates when the laser is active.
- Maximum/Minimum Value: Displays the highest/lowest values in continuous measurement mode.
- Main Display Area: Shows current measurement results.
- Power Source/Battery Indicator: Displays battery level.
- Measurement Mode Indicator: Shows current mode (Length, Surface, Volume, Pythagoras).
- Angle Display: Shows the current tilt angle.
- Auxiliary Display Area: Provides additional measurement details.
Button Functions:
- READ Button: Powers on the device, activates the laser, and initiates measurements.
- OFF CLEAR Button: Powers off the device and clears current measurements.
- UNIT / Speaker Button: Toggles between measurement units (m, in, ft, ft+in) and mutes/unmutes sound.
- M (Mode) Button: Cycles through measurement modes (Area, Volume, Pythagorean).
- Reference Point / Delay Measurement Button: Changes the measurement reference point (front/rear) and activates delay measurement.
- + / - Buttons: Adds or subtracts measurements.
3. Setup
3.1 Charging the Device
The TACKLIFE S5-50 is equipped with a rechargeable battery. Use the provided USB charging cable to connect the device to a standard USB power adapter (not included) or a computer USB port. The battery indicator on the screen will show charging status. Ensure the device is fully charged before first use for optimal performance.
3.2 Powering On/Off
- To Power On: Press the READ button. The screen will light up.
- To Power Off: Press and hold the OFF CLEAR button for a few seconds. The device will also automatically power off after 150 seconds of inactivity.
4. Operation
4.1 Basic Distance Measurement
- Point the laser rangefinder at the target.
- Press the READ button once to activate the laser.
- Press the READ button again to take a measurement. The result will be displayed on the main screen.
4.2 Continuous Measurement (Min/Max)
This mode is useful for finding the shortest or longest distance to a moving target or for scanning a room. The device will continuously measure and display the current, minimum, and maximum distances.
- Press and hold the READ button to enter continuous measurement mode.
- Move the device slowly across the target area. The screen will update with current, minimum, and maximum values.
- Press the READ button again to stop continuous measurement.

4.3 Unit Switching
To change the measurement unit:
- Press the UNIT button repeatedly to cycle through available units: Meters (m), Inches (in), Feet (ft), and Feet+Inches (ft+in).
4.4 Measurement Modes
The TACKLIFE S5-50 supports various measurement functions. Press the M (Mode) button to cycle through these modes.

- Individual Measurement: Standard single distance measurement.
- Continuous Measurement: As described in section 4.2.
- Area Measurement: Measures length and width to calculate area.
- Volume Measurement: Measures length, width, and height to calculate volume.
- Pythagorean Measurement (Single/Double): Indirectly measures height or distance using the Pythagorean theorem. Follow the on-screen prompts for each step.
4.5 Add/Subtract Measurements
To add or subtract measurements:
- After taking a measurement, press the + button to add the next measurement to the current total.
- Press the - button to subtract the next measurement from the current total.
4.6 Reference Point Adjustment
The device can measure from its front edge or its rear edge. This is crucial for accurate measurements depending on how you position the device.
- Press the Reference Point button to toggle between measuring from the front or rear of the device. An icon on the screen will indicate the active reference point.
4.7 Angle Measurement
The integrated electronic angle sensor automatically displays the tilt angle on the screen, ranging from -90.0° to 90.0°. This feature is useful for ensuring level surfaces or for indirect height measurements.

5. Maintenance
5.1 Cleaning
- Wipe the device with a soft, damp cloth. Do not use abrasive cleaners, solvents, or harsh chemicals.
- Ensure the laser lens and display screen are kept clean for accurate readings.
5.2 Storage
- Store the laser rangefinder in its provided carrying pouch when not in use.
- Keep the device in a dry, cool place, away from direct sunlight and extreme temperatures.
5.3 Battery Care
- Recharge the battery regularly, even if the device is not used frequently, to maintain battery health.
- Avoid completely draining the battery before recharging.
6. Troubleshooting
If you encounter issues with your TACKLIFE S5-50, please refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Device does not turn on | Low battery or device malfunction. | Charge the device fully. If it still doesn't turn on, contact support. |
| Inaccurate measurements | Incorrect reference point, dirty lens, or environmental factors. | Check reference point setting. Clean the laser lens. Perform self-calibration (refer to device settings if available). Avoid measuring through glass or highly reflective surfaces. |
| Laser not visible | Laser is off or too bright ambient light. | Press the READ button to activate the laser. Use the hand-held reflector in bright conditions or for long distances. |
| Buttons unresponsive | Temporary software glitch. | Try turning the device off and on again. |
7. Specifications
| Feature | Specification |
|---|---|
| Measurement Range | 0.05 - 50 m |
| Measurement Accuracy | ±2 mm |
| Angle Range | ±90° |
| Automatic Laser Shutdown | 20 seconds |
| Automatic Device Power Off | 150 seconds |
| Data Storage | 99 records |
| Units of Measurement | m, in, ft, ft+in |
| Protection Rating | IP54 (Dust and Splash-proof) |
| Power Source | Rechargeable Battery (USB charging) |
8. User Tips
- For best accuracy, especially over longer distances or on reflective/transparent surfaces, use the included hand-held reflector.
- Always ensure the laser path is clear of obstructions.
- Regularly check and perform self-calibration if you suspect accuracy issues.
- When measuring from a corner or edge, remember to adjust the reference point accordingly (front or rear of the device).
- Keep the device charged to avoid interruptions during important measurements.
9. Warranty and Support
For warranty information or technical support, please refer to the documentation provided with your purchase or contact the seller directly. Keep your proof of purchase for any warranty claims.





