Introduction
The Pro'skit NT-6370 is a versatile handheld laser distance meter designed for accurate and efficient measurement tasks. It features a range of up to 70 meters, millimeter accuracy, and a rapid 0.3-second flash test. This manual provides detailed instructions for the safe and effective use of your device.

Pro'skit NT-6370 Laser Distance Measurer highlighting key features like lateral & vertical bubble, millimeter accuracy, and 0.3-second flash test.
Safety Information
Please read and understand all safety instructions before operating the device.
- Laser Hazard Level: This device uses a Class 1 laser (<1mW). Avoid direct eye exposure to the laser beam.
- Do not attempt to disassemble or modify the device.
- Keep the device away from water and extreme temperatures.
- Ensure the measurement surface is clear and stable for accurate readings.
Product Overview
The Pro'skit NT-6370 is engineered for durability and ease of use, featuring a robust design and intuitive controls.

The device features a drop-proof and dust-proof design for enhanced durability.
Key Features:
- Lateral & Vertical Bubble: For precise horizontal and vertical alignment.
- Millimeter Accuracy: Provides highly accurate measurements.
- 0.3 Second Flash Test: Quick measurement acquisition.
- 2.0 Large LCD Display: Clear and easy-to-read measurements with large numbers and icons.
- Drop-proof and Dust-proof: Enhanced protection for daily use.
- Lightweight and Portable: Compact design for easy carrying.
- Data Record: Stores up to 99 groups of measurement data.

The 2.0 large LCD display ensures clear and easy-to-read measurements.
Setup
Battery Installation
The Pro'skit NT-6370 requires 3 AAA 1.5V batteries (not included). To install:
- Locate the battery compartment cover on the back of the device.
- Slide or unclip the cover to open.
- Insert 3 AAA batteries, ensuring correct polarity (+/-).
- Close the battery compartment cover securely.
Powering On/Off
- Press the POWER/CLEAR button to turn the device on.
- To turn off, press and hold the POWER/CLEAR button for a few seconds, or the device will auto-off after 3 minutes of no operation.
Operating Instructions
Basic Measurement
- Turn on the device.
- Point the laser beam at the target object.
- Press the MEAS button to take a measurement. The result will be displayed on the screen.

The device can easily measure distances up to 70 meters (229 feet).
Benchmark Switch (Head/Tail Measurement)
The device allows you to switch the measurement reference point between the front (head) and the rear (tail) of the device, suitable for various environments.

Switch between measuring from the head or tail of the device for different scenarios.
Using the Bubble Levels
The NT-6370 features two bubble levels (lateral and vertical) to ensure the device is perfectly horizontal or vertical for more precise measurements.

The dual bubble levels assist in achieving accurate horizontal alignment.
Measurement Functions
The NT-6370 offers a variety of integrated measurement functions:

Visual guide to the various measurement modes available on the device.
- Single Measurement: Measures the distance from the device to a single point.
- Continuous Measurement: Provides real-time distance updates as you move the device, displaying Max and Min values.
- Area Measurement: Calculates the area of a rectangular space by measuring two sides.
- Volume Measurement: Calculates the volume of a space by measuring three dimensions (length, width, height).
- Wall Area Survey: Specific function for calculating wall areas.
- Pythagorean Measurement (Two Points): Calculates an indirect distance using two measurements (e.g., height of an object).
- Pythagorean Measurement (Three Points): Calculates an indirect distance using three measurements for more complex scenarios.
- Countdown: Measures after a set delay.
- Add & Subtraction Measurement: Allows for adding or subtracting measurements.
Unit Conversion
The device supports conversion between four common units:
- Meters (m)
- Inches (in)
- Feet (ft)
- Feet + Inches (ft+in)
Press the UNIT button to cycle through the available measurement units.

Easily convert between Meters, Feet, Inches, and Feet+Inches.
Data Storage
The NT-6370 can store up to 99 groups of measurement data. This feature allows you to review past measurements without needing to re-measure.

The device supports data hold and data clear functions, storing up to 99 groups.
Maintenance
- Cleaning: Use a soft, dry cloth to clean the device. Do not use abrasive cleaners or solvents.
- Storage: Store the device in a cool, dry place when not in use. Remove batteries if storing for extended periods to prevent leakage.
- Lens Care: Keep the laser emission and reception lenses clean and free from dust or debris to ensure accurate measurements.
Troubleshooting
- Device not turning on: Check battery installation and ensure batteries are not depleted.
- Inaccurate readings: Ensure the laser lens is clean, the target surface is reflective enough, and there are no obstructions in the laser path. Verify the benchmark setting (head/tail) is correct for your measurement.
- Display issues: If the display is dim or flickering, replace the batteries.
Specifications

Detailed product specifications including range, accuracy, and functions.
| Feature | Specification |
|---|---|
| Product Model | NT-6370 |
| Range | 0.05m - 70m |
| Range Accuracy | ±1.5 mm (d x 0.005%) |
| LCD Screen | 2.0-inch HD screen |
| Laser Type | 620 - 670nm, < 1mW |
| Laser Level | Class II |
| Bubble | 2, lateral & vertical |
| Laser Off | No operate 30 seconds |
| Auto Off | No operate for 3 minutes |
| Single Measuring | Yes |
| Continuity Measuring | Max & Min values |
| Area & Girth Measurement | Yes |
| Volume Measurement | Yes |
| Wall Area Survey | Yes |
| Pythagorean Measurement | Yes |
| Countdown | Yes |
| Add & Subtraction Measurement | Yes |
| Unit Switch | m/ft/in/ft+in |
| Benchmark Switch | Front / End benchmark |
| Beep | Yes |
| Data Storage | 99 sets |
| Working Temperature | 0°C ~ 40°C |
| Storage Temperature | -20°C ~ 60°C |
| Battery | 1.5V AAA x 3 |
| Dimension | 120 x 52 x 29 mm |
| Weight | Approx 95g |
User Tips
- For best accuracy, ensure the device is held steady and the laser beam hits a flat, non-transparent surface.
- When measuring long distances, use a target plate if the surface is too reflective or too dark.
- Always check the battery level before starting important measurements.
- Utilize the data storage feature to keep track of multiple measurements for projects.
Warranty and Support
For warranty information or technical support, please contact the manufacturer or your point of purchase. Keep your purchase receipt as proof of purchase.





