NOHAWK Multifunctional Laser Rangefinder User Manual

1. Introduction

The NOHAWK Laser Rangefinder is a high-precision optical instrument designed for various applications including golfing, hunting, engineering surveys, and construction. It features multiple measurement modes, a clear optical lens, and a compact design for ease of use.

When the device is powered off, it functions as a precision optical telescope. Users can adjust the eyepiece knob for clear viewing.

NOHAWK Laser Rangefinder on a golf course — Image: NOHAWK Laser Rangefinder, highlighting its use in golf.

NOHAWK Laser Rangefinder with key features listed — Image: Key features of the NOHAWK Laser Rangefinder, including 5-600/1000 Yards accuracy, +/-1 Yard accuracy, 6x magnification, magnetic strip, flagpole locking, vibration confirm, Y/M distance unit, and 7 modes.

2. Safety Warnings

The Rangefinder uses a safe 905nm laser that is safe for human eyes, invisible, and meets the standard of Class I.
Do not view the emissions for long periods of time with magnified lens.
Do not view the target through glass.
Avoid direct sunlight to the eyepiece to prevent damaging the eyepiece display or internal components.
Put the device in a protective case when not in use.
Do not put the device out of the storage temperature of -20~50°C.

3. Product Overview

The NOHAWK Laser Rangefinder is a compact and versatile device. Refer to the diagram below for component identification.

Diagram of NOHAWK Laser Rangefinder components — Image: Diagram showing the components of the NOHAWK Laser Rangefinder. 1: Start/Measure button, 2: Mode button, 3: Laser emission objective lens, 4: Laser receiving objective lens, 5: Eyepiece, 6: Built-in lithium battery.

3.1. Key Features

High-Precision Measurement: Accurate ranging for various distances.
6X Magnification: Provides a clearer and brighter field of view.
Multi-Layer Coated Lens: Enhances optical performance.
Magnetic Strip: Allows for convenient attachment to metal surfaces, such as a golf cart.
USB Type-C Charging: Rechargeable built-in lithium battery.
7 Measurement Modes: Including Ranging, All-in-one, Scanning, Two Point Height, Speed, Golf (with Flagpole Lock, Vibration, Slope Compensation), and Storage Function.

NOHAWK Laser Rangefinder showing 6X magnification and adjustable eyepiece — Image: Illustration of the 6X magnification and adjustable eyepiece for HD optical lens, providing clearer picture and brighter field of view.

4. Setup and Initial Use

4.1. Charging the Device

The device is powered by a built-in rechargeable lithium battery. Use the provided Type-C USB cable to charge the device.

Locate the USB Type-C charging port on the device.
Connect the Type-C cable to the device and a suitable USB power source.
A red indicator light will show that the device is charging.
The indicator light will turn green when fully charged.

NOHAWK Laser Rangefinder showing USB Type-C charging port and indicator lights — Image: The rangefinder connected to a USB Type-C charger, showing red light for charging and green for fully charged.

4.2. Adjusting the Eyepiece

Rotate the eyepiece knob to manually focus and achieve a clear view of the target.

Video: Demonstrates rotating the focusing eyepiece for a clearer view, showing 6.5x zoom and multi-layer coating.

5. Operating Instructions

5.1. Power On/Off

Press the Power button (1) to turn on the device.
The device will automatically power off if there is no operation within 30 seconds to conserve battery.

5.2. Switching Measurement Units (Yard/Meter)

The device supports both Yards (Y) and Meters (M). The default unit is Yards (Y).

Long press the Power button (1) and Mode button (2) simultaneously for 3-5 seconds.
The unit displayed on the LCD will switch between Yards and Meters.

5.3. Angle Calibration

Calibrate the device if the angle measurement is inaccurate. Perform this operation on a horizontal platform or a tripod with an adjusted horizontal angle.

Ensure the device is powered on.
Long press the Mode button (2). The angle display will flash.
Release the Mode button.
Long press the Mode button again. The angle will continue to flash.
Press the Mode button once more to finish calibration. The angle of the device will be 0°0 under horizontal status after calibration.

5.4. Measurement Modes

The rangefinder offers 7 distinct measurement modes. Press the Mode button (2) to cycle through the modes.

NOHAWK Laser Rangefinder showing 7 measurement modes — Image: Visual representation of the 7 measurement modes: Single Ranging, All-in-one mode, Memory storage, Scan mode, Two Point Height, Speed measurement, and Golf mode.

5.4.1. Mode 1: Ranging Mode (Single Measurement)

Measures the straight-line distance from the rangefinder to the target.

Power on the device.
Aim at the target.
Press the Power button (1) to measure. The distance will be displayed on the screen.

Diagram of single ranging mode display and operation — Image: Display for single ranging mode, showing angle, straight line distance, horizontal distance, and height. Also illustrates how to measure the straight line distance to a building.

5.4.2. Mode 2: All-in-one Mode

Measures straight-line distance, angle, vertical distance, and horizontal distance simultaneously.

Power on the device.
Press the Mode button (2) until "All-in-one mode" is selected.
Aim at the target.
Press the Power button (1) to measure. The data will be displayed.

5.4.3. Mode 3: Scanning Mode

Provides continuous measurement of straight-line distance, angle, vertical distance, and horizontal distance as you scan across targets.

Power on the device.
Press the Mode button (2) until "Scan mode" is selected.
Aim at the target and press and hold the Power button (1) while scanning. The display will update continuously.

5.4.4. Mode 4: Two Point Height Measurement Mode

Measures the vertical height difference between two targets.

Power on the device.
Press the Mode button (2) until "Two Point Height Measurement Mode" is selected.
Aim at the first target and press the Power button (1) to measure.
Aim at the second target and press the Power button (1) again.
The straight-line distance, horizontal distance to the second point, and the height difference between the two points will be displayed.

5.4.5. Mode 5: Speed Measurement Mode

Measures the speed of a target object moving in radial motion (towards or away from the rangefinder).

Power on the device.
Press the Mode button (2) until "Speed mode" is selected.
Aim at the moving target.
Press the Power button (1). The laser indicator flashes, and the device enters continuous measurement. The speed (in Km/h) will be displayed.

Note: The speed of an object moving in parallel cannot be measured accurately as there is no significant change in distance from the rangefinder to the target.

5.4.6. Mode 6: Golf Distance Compensation Mode (with Flagpole Lock and Vibration)

This mode is specifically designed for golf, providing slope-compensated distances and flagpole locking with vibration feedback.

Power on the device.
Press the Mode button (2) until "Golf Mode" is selected.
Select and aim at the target (e.g., flagpole).
Aim at the slope/background behind the flagpole. Long press the Power button (1) to enter scanning mode.
Move the target indicator slowly from the background to the flagpole. Once the flagpole is locked successfully, the rangefinder will vibrate and display the suggested hitting distance (slope-compensated).

NOHAWK Laser Rangefinder showing flagpole lock with vibration — Image: Display showing flagpole lock with vibration feedback, indicating angle, distance, and compensated distance.

When the slope is positive, the play distance will be greater than the sight distance. When the slope is negative, the play distance will be less than the sight distance.

5.4.7. Mode 7: Storage Function

Allows viewing of previously measured data.

Power on the device.
Press the Mode button (2) to switch to the storage function. The display will show "Lb".
Press the Power button (1) continuously to view stored data groups.

6. Maintenance

Keep the device clean. Use a soft, dry cloth to wipe the exterior.
For optical lenses, use a lens cleaning cloth and solution designed for optics.
Store the device in its protective case when not in use to prevent dust and damage.
Ensure the device is fully charged before long periods of storage.

7. Troubleshooting

7.1. Inaccurate Measurement

Improper Mode Selection: Ensure you have selected the correct measurement mode for your needs. Refer to section 5.4 for details on each mode.
Target Clarity: Measurements may be inaccurate if the target is unclear, too small, uneven, or made of materials like dark wood or glass.
Environmental Factors: Adverse weather conditions such as rain, fog, or environments with oil smoke, suspended particulate matter, or dim lighting can affect accuracy.

7.2. Device Not Powering On

Check battery level. Recharge the device if the battery is low.
Ensure the power button is pressed firmly.

7.3. Display Issues

If the display is unclear, adjust the eyepiece knob for focus.
Avoid direct sunlight on the eyepiece, as this can damage the display.

8. Specifications

Feature	Specification
Brand Name	Nohawk
Model Number	3M02-600/1000-A-LI-W/B (NOHAWK Model: 3M02)
Product Name	Laser Golf Rangefinder
Measuring Range	5-600 / 5-1000 yds/m
Measurement Accuracy	±1 yard/meter
Laser Wavelength	905nm
Laser Hazard Level	Class 1 (<1mW)
Telescope Magnification	6X
Focusing Method	Manual focusing of eyepiece
Power Type	Rechargeable (Type C charging, built-in lithium battery)
Battery Included	Yes
Distance Measurement Display Method	LCD display
Supported Units	yd (yard) / m (meter)
Angle Ranging Scope	±90°
Angle Ranging Accuracy	0.3°
Product Dimensions	99X38X75mm
Net Weight	154g
Working Temperature	-20~50 °C
Certification	CE, RoHS, WEEE
Application	Hunting, Golfing, Engineering Surveys, Construction
High-concerned chemical	None

NOHAWK Laser Rangefinder dimensions — Image: Dimensions of the NOHAWK Laser Rangefinder, showing 99mm length, 38mm width, and 75mm height.

9. User Tips

For optimal accuracy, ensure the target is clear and well-defined. Avoid measuring through glass or in adverse weather conditions.
Remember to adjust the eyepiece for a sharp image before taking measurements.
Utilize the magnetic strip for convenient placement on golf carts or other metal surfaces during use.
If you encounter any issues, first verify the selected measurement mode and environmental conditions.

10. Warranty and Support

For any product-related inquiries, technical support, or warranty claims, please contact the seller or manufacturer directly. Refer to your purchase documentation for specific contact information.

A user manual in PDF format is also available for download: View User Manual (PDF)

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Nohawk 3M02-600/1000-A-LI-W/B