1. Introduction
The Boblov NK-1000 is a versatile laser rangefinder designed for various outdoor activities, including hunting, golf, sports, and engineering. It features 6.5x magnification multi-coated HD optics, multiple measurement modes, and a rechargeable lithium battery, providing rapid and accurate distance measurements.
This manual provides detailed instructions for the proper setup, operation, maintenance, and troubleshooting of your Boblov NK-1000 Laser Rangefinder. Please read it thoroughly before using the device to ensure optimal performance and safety.
2. Package Contents
Upon opening your Boblov NK-1000 package, please verify that all the following items are included:
- 1 x BOBLOV Hunting Rangefinder (NK-1000)
- 1 x Carrying case
- 1 x User manual
- 1 x Strap
- 1 x Cleaning Cloth
Note: The exterior color of the rangefinder may vary (two colors are shipped randomly).

Image: Contents of the Boblov NK-1000 package, including the rangefinder, carrying case, user manual, strap, and cleaning cloth.
3. Device Layout and Controls
Familiarize yourself with the various parts and controls of your Boblov NK-1000 Laser Rangefinder:

Image: Diagram showing the key components of the Boblov NK-1000 rangefinder.
- Objective Lens: The main lens for viewing.
- Laser Transmitting Objective Lens: Emits the laser beam for measurement.
- Laser Receiving Objective Lens: Receives the reflected laser beam.
- Mode Switch: Button to cycle through different measurement modes.
- Power ON/OFF Switch: Button to turn the device on and off, and to initiate measurements.
- Adjustable Eyepiece: Rotate to adjust focus for clear vision.
- Battery Compartment/Charging Port: Houses the rechargeable lithium battery and USB charging port.
- Multi-Coated Lens: Enhances light transmission and image clarity.
4. Setup and Charging
4.1 Initial Charging
The Boblov NK-1000 is equipped with a built-in rechargeable lithium battery. Before first use, it is recommended to fully charge the device.
- Locate the USB charging port on the side of the rangefinder.
- Connect the provided USB cable to the rangefinder and a suitable USB power source (e.g., computer, wall adapter).
- The charging indicator will typically show red while charging and turn green when fully charged.

Image: The Boblov NK-1000 rangefinder being charged via a USB cable connected to a laptop. Charging indicator lights are shown as red (charging) and green (charged).
4.2 Attaching the Strap
Attach the included strap to the rangefinder for secure handling and to prevent accidental drops.
4.3 Adjusting the Eyepiece
For clear viewing, adjust the eyepiece to match your vision:
- Look through the eyepiece.
- Rotate the adjustable eyepiece until the image in the display appears sharp and clear. This frees you from needing glasses while using the device.

Image: Illustration demonstrating the adjustment of the eyepiece to achieve a clear image, contrasting a blurred view with an adjusted, clear view.
5. Operating Instructions
5.1 Power On/Off
- To Power On: Press the Power ON/OFF Switch briefly. The display will activate.
- To Power Off: The device will automatically power off after a period of inactivity to conserve battery. You can also press and hold the Power ON/OFF Switch to manually turn it off.
5.2 Switching Measurement Modes
The NK-1000 features 7 different measurement modes. Press the Mode Switch button to cycle through the available modes. The current mode will be indicated on the LCD display.
5.3 Measurement Modes Overview
The Boblov NK-1000 offers multiple measurement modes to suit various applications:
- Range Mode: Measures the straight-line distance to a stationary target. Aim at the target and press the Power ON/OFF Switch. The distance will be displayed. This mode is suitable for general distance measurement in hunting, golf, and other outdoor activities.

Image: The rangefinder display in Range Mode, showing distance measurements to a deer in a field and a ship at sea.
- Scan Mode: For continuous measurement of moving targets or to track distances to multiple obstacles. Press and hold the Power ON/OFF Switch while sweeping across targets. This is useful for hunting, hiking, mountaineering, or other sports where continuous tracking is needed.

Image: The rangefinder display in Scan Mode, showing continuous distance measurements to various points on a golf course.
- Speed Mode: Aim at a moving target to calculate its speed. The device can measure speeds up to 300 km/h. This mode is ideal for observing sports like horse racing or car racing.

Image: The rangefinder display in Speed Mode, showing a speed reading for moving horses on a race track.
- Bow Mode (HD): Primarily used to measure the true horizontal distance from your position to the target object, especially useful in hunting scenarios with elevation changes.

Image: The rangefinder display in Bow Mode, illustrating how it calculates the true horizontal distance to a target, compensating for angle.
- Measuring Angle and Height Mode: Provides angle, distance, and calculated height to a target. Useful for golf (slope compensation) and construction.

Image: The rangefinder display in Measuring Angle and Height Mode, showing angle, distance, and compensated level distance on a golf course.
- LB Mode: This mode displays basic distance and may indicate a low battery status or a specific golf mode. Refer to the on-screen indicator for details.

Image: The rangefinder display in LB Mode, showing a distance reading and 'Lb' indicator.
- HT Mode: This mode is designed for height measurement, providing both the high point and level distance. Useful for construction or forestry applications.

Image: The rangefinder display in HT Mode, showing high point and level distance measurements in a mountainous landscape.
5.4 Slope Ballistic Correcting Function
The device includes a slope ballistic correcting function, which automatically calculates and displays the compensated distance for uphill or downhill shots, particularly beneficial for golf to provide accurate 'play-as' distances.
6. Maintenance
Proper maintenance ensures the longevity and accuracy of your Boblov NK-1000 Laser Rangefinder.
- Cleaning Lenses: Use the provided cleaning cloth to gently wipe the objective and eyepiece lenses. Avoid using abrasive materials or harsh chemicals that could scratch the lens coatings.
- Cleaning Body: Wipe the body of the rangefinder with a soft, damp cloth. Do not submerge the device in water, despite its IP54 waterproof rating.
- Storage: Store the rangefinder in its carrying case in a cool, dry place when not in use. Avoid extreme temperatures and high humidity.
- Battery Care: Recharge the lithium battery regularly, even if the device is not used frequently, to maintain battery health. Avoid completely draining the battery for extended periods.
7. Troubleshooting
If you encounter issues with your Boblov NK-1000, refer to the following common troubleshooting steps:
| Problem | Possible Cause | Solution |
|---|---|---|
| Device does not power on | Low or depleted battery | Charge the device fully using the provided USB cable. |
| Display is blurry or unclear | Eyepiece not adjusted | Rotate the adjustable eyepiece until the image is sharp. |
| Inaccurate or inconsistent readings | Unstable hand, obstructed view, or target too small/reflective | Ensure a steady hand, clear line of sight, and aim at a larger, less reflective target if possible. |
| No measurement displayed | Target out of range or laser blocked | Ensure target is within the 5-1000m range. Check for obstructions in the laser path. |
If the problem persists after attempting these solutions, please refer to the full user manual included in your package or contact customer support.
8. Specifications
Detailed technical specifications for the Boblov NK-1000 Laser Rangefinder:
| Feature | Specification |
|---|---|
| Brand Name | BOBLOV |
| Model Number | NK-1000 |
| Ranging Method | Semiconductor laser ranging (safe for human eyes) |
| Laser Wavelength | 905 nm |
| Ranging Range | 5-1000 meters |
| Ranging Error | ±0.5m |
| Distance Resolution | 0.1 meters |
| Angle Measurement Range | 0 to 90 degrees |
| Angle Measurement Accuracy | 0.3 degrees |
| Angle Display Resolution | 0.1 degree |
| Range Measurement Display Mode | LCD display |
| Telescope Magnification | 6.5 times |
| Telescope Diameter | 28mm |
| Lens Quality | Multilayer coating |
| Working Temperature | -20~ 50 ℃ |
| Operating Humidity | ≤80% |
| Exit Pupil Diameter | 3.1mm |
| Exit Pupil Distance | 12.1mm |
| Focus Mode | Manual Focus |
| Ranging Modes | 7 Modes |
| Protection Level | IP54 Waterproof |
| Power Supply | Lithium battery 500 mA (Rechargeable) |
| Battery Included | Yes |
| Certification | CE |
| Origin | Mainland China |
9. Warranty and Support
The Boblov NK-1000 Laser Rangefinder is designed for durability and performance. For specific warranty information, please refer to the warranty card or documentation included in your product package. If you have any questions, require technical assistance, or need to report an issue, please contact the seller or manufacturer's customer support.
Always retain your proof of purchase for warranty claims.





