REVASRI Mini Golf Laser Rangefinder User Manual

1. Introduction

The REVASRI Mini Golf Laser Rangefinder is a precision optical telescope designed for accurate distance measurement in various outdoor activities, particularly golf. It features slope compensation, flag locking with vibration, and 6X magnification. When powered off, the device functions as a standard optical telescope, with adjustable eyepiece for clear viewing.

Figure 1: REVASRI Mini Golf Laser Rangefinder

2. Safety Warnings

• Do not view the laser emissions for long periods of time with magnified lenses.
• Avoid direct sunlight to the eyepiece to prevent damage to the eyepiece display or internal components.
• The equipment contains electrical and/or electronic components and must not be disposed of with ordinary household waste. Dispose of these wastes at community-provided waste collection points.
• Keep the battery away from fire. Do not throw the device into fire, as it may cause an explosion.

3. Package Contents

Your REVASRI Mini Golf Laser Rangefinder package should include:

• REVASRI Mini Golf Laser Rangefinder
• Zipper bag
• Lanyard
• USB Type-C Charging Cable
• English User Manual

4. Product Overview

4.1. Device Components

1. Power button
2. Mode button
3. Eyepiece lens
4. Objective lens

4.2. LCD Display Indicators

• Linear Distance
• Distance Units (M=Metres, Y=Yards, F=Feet)
• Target Indicator
• Slope Compensation Distance
• Angle
• Flagpole Icon

Figure 2: Key features of the REVASRI Golf Laser Rangefinder

5. Setup

5.1. Initial Charge

The device has a built-in rechargeable lithium battery. Before first use, or if the 'low battery' indicator is displayed, charge the device using the provided USB Type-C cable. The charging indicator light will be red during charging and turn blue when fully charged.

Figure 3: USB Type-C Charging Status (Red: Charging, Green: Fully Charged)

5.2. Powering On/Off

Press the Power button to turn on the device. The device will automatically power off after 15-30 seconds of no operation to conserve battery.

5.3. Adjusting Eyepiece Focus

Rotate the eyepiece knob to adjust the focus for a clear view through the optical telescope.

6. Operation

6.1. Switching Measurement Units (Yards/Meters/Feet)

To change the measurement unit (Yards, Meters, or Feet):

1. Press and hold the Mode (M) button for 3 seconds.
2. The unit will switch, and you can confirm the new unit through the eyepiece display.

6.2. Mode Selection

Press the Mode (M) button to cycle through the available measurement modes.

6.2.1. Mode 1: Tour Mode (No Slope Compensation)

This mode provides straight-line distance measurement without slope compensation, making it suitable for legal golf tournaments.

1. Ensure the device is powered on.
2. Select Mode 1 (Tour Mode) by pressing the Mode (M) button until the slope indicator is off.
3. Aim the target indicator at the desired object.
4. Press the Power button to measure.
5. The straight-line distance will be displayed on the screen.

6.2.2. Mode 2: Golf Mode (Slope Compensation)

This mode calculates golf-compensated distance, taking into account the elevation changes (slope) to provide an adjusted distance for club selection. A 'slope' logo will appear on the display when this mode is active.

1. Ensure the device is powered on.
2. Select Mode 2 (Golf Mode) by pressing the Mode (M) button until the slope indicator is visible.
3. Aim the target indicator at the desired object.
4. Press the Power button to measure.
5. The straight-line distance, angle, and slope-compensated distance will be displayed on the screen.

Figure 4: Understanding Slope Mode calculations

Figure 5: Comparison of Tournament Mode (No Slope) and Training Mode (Slope Compensation)

6.3. Scan, Flagpole Lock & Vibration

These features are available in both Mode 1 and Mode 2:

1. Scanning Mode: Aim at the slope or background behind the flag. Long press the Power button to enter scanning mode.
2. Flagpole Lock: While in scanning mode, slowly move the rangefinder's target indicator from the background towards the flag. Once the flag is successfully locked, the rangefinder will vibrate, and the measurement data will be displayed.

Figure 6: Single Measurement Vibration and Flag Lock with Vibration Confirmation

6.4. Angle Calibration

If the angle measurement becomes inaccurate, you may need to calibrate the device. It is recommended to perform this operation on a horizontal surface or using a tripod.

1. Turn on the power.
2. Observe the LCD display.
3. Press and hold both the Power button and the Mode (M) button simultaneously for 3 seconds.
4. The LCD display will show "CAL" (calibration).
5. Press the Power button to complete the calibration.

After successful calibration, the unit should display an angle of 0° in the horizontal state.

7. Maintenance

7.1. Cleaning the Lenses

The laser rangefinder's lenses are multi-coated for optimal light transmission. To clean them:

• Gently remove fingerprints or smudges using the provided lens demisting cloth.
• Wipe in a circular motion.
• If using a cleaning solution, apply it to the clean cloth first, then wipe the lenses. Do not apply solution directly to the lenses.

7.2. Battery Care

• Recharge the device when the low battery indicator appears.
• If the device will not be used for a long period, ensure it is fully charged before storage.

7.3. Storage

• Store the device within the temperature range of -20°C to 50°C.
• When not in use for an extended period, store the device in its protective case in a dry environment.

8. Troubleshooting

9. Technical Specifications

10. User Tips

• For best accuracy, especially on longer distances, ensure your hands are steady or use a stable surface.
• When measuring in challenging weather (rain, fog, dust), the maximum measurement distance may be reduced. Try to target larger, lighter-colored objects for better reflection.
• Remember to switch off slope compensation (Mode 1) for official tournament play.
• The magnetic strip feature allows for convenient attachment to golf carts or clubs.

11. Warranty and Support

11.1. Warranty Information

This product comes with a one-year warranty covering defects in materials and workmanship from the date of purchase. During the warranty period, any defective product will be repaired or replaced based on the specific case when returned.

11.2. Non-Warranty Situations

The warranty does not cover:

• Damage resulting from incorrect operation or user-induced damage.
• Maintenance or repairs performed by unauthorized personnel or units.

11.3. Service Request

If repairs are required, please send the device to your local dealer along with the warranty card and purchase invoice. Do not include accessories such as the case, strap, or batteries unless specifically requested.

12. Important Notes

• This rangefinder is designed for long-distance measurements, with a minimum measurement distance of 5 meters.
• Glass can reflect the laser beam and affect measurement results. Do not measure through glass during use.
• In low-light conditions at night, additional lighting is required to view the readings, as the eyepiece display is not illuminated.
• The 6x magnification can be adjusted by rotating the eyepiece knob.
• Rain, fog, and dusty conditions may obstruct laser transmission and affect the maximum measurement distance. When measuring objects, select light-colored buildings as the farthest target as possible. Complex vegetation on mountains can obstruct the reflection of laser signals.