1. Introduction
The NOYAFA NF-273L is a high-precision laser rangefinder designed for a wide range of measurement tasks. It offers accurate and efficient solutions for distance, area, and volume calculations, making it an indispensable tool for professionals in interior design, construction, real estate, and various other fields. Equipped with advanced features like Bluetooth connectivity, voice broadcast, and multiple measurement modes, this device simplifies complex measurements and enhances productivity.
2. Key Features
- Distance, Area, and Volume Measurement: Perform fundamental measurements with high accuracy.
- Pythagorean Proposition Indirect Measurement: Calculate heights and distances indirectly using the Pythagorean theorem.
- Bluetooth Connectivity: Connect to a mobile app for data transfer, photo annotation, form making, and exporting drawings (Note: Bluetooth function may not support all iPhone models).
- Live Voice Broadcast: Provides audio guidance and data broadcast for easy recording and confirmation.
- Single/Continuous Measurement: Switch between single-shot measurements and continuous tracking.
- Addition/Subtraction Measurement: Easily add or subtract measurements.
- Units and Benchmark Selectable: Choose between meters (m), feet (ft), inches (in), or feet+inches, and set front or rear benchmark.
- Automatic Horizontal and Vertical Measurement: Built-in electronic angle sensor for real-time display and automatic calculation of angles.
- Data Storage: Stores up to 100 sets of measurement data for convenient review.
- Rechargeable Lithium Battery: Powered by a 750mAh rechargeable lithium battery for extended use.
- 2.0-inch HD Color Screen: Large, clear display for easy reading of measurements and settings.
- Green Beam Laser: Offers clearer visibility for both indoor and outdoor ranging.
3. Package Contents
Upon opening your NOYAFA NF-273L package, please ensure all items are present and in good condition:
- NOYAFA NF-273L Laser Rangefinder
- USB Charging Cable
- Rechargeable Lithium Battery (750mAh)
- Instruction Manual
4. Setup and First Use
4.1 Battery Installation and Charging
- Locate the battery compartment on the rear of the device.
- Open the battery cover.
- Insert the provided 750mAh lithium battery, ensuring correct polarity.
- Close the battery cover securely.
- Connect the device to a USB power source using the provided USB charging cable. The battery icon on the display will indicate charging status.
4.2 Power On/Off
- To power on: Press and hold the Power & Back button (
) for a few seconds. - To power off: Press and hold the Power & Back button again. The device also features automatic power-off after 2 minutes of inactivity and laser auto-off after 30 seconds.
4.3 Button Functions Overview
- MEAS (Measure/Confirm): Initiates measurement or confirms selection.
- Mode Switch: Cycles through different measurement modes.
- Benchmark: Changes the measurement reference point (front or rear of the device).
- Menu: Accesses the device menu for settings.
- Add (+): Adds values in calculation modes.
- Subtract (-): Subtracts values in calculation modes.
- CLEAR: Clears the current measurement or exits a menu.
- Power & Back: Powers the device on/off or goes back to the previous screen.
5. Operating Modes
5.1 Single Measurement
Press the MEAS button once to turn on the laser. Press it again to perform a single distance measurement. The result will be displayed directly on the screen.
5.2 Continuous Measurement
Enter Continuous mode by pressing the MEAS button. The device will continuously measure and display MAX/MIN results on the screen. Short press MEAS or CLEAR to stop the continuous test.
5.3 Area Measurement
To enter Area measurement mode, short press the Mode Switch button (often represented by a square icon). Then, press MEAS to measure the length and width. The device will automatically calculate and display the area.
5.4 Volume Measurement
If you are in Area function test mode, short press the Mode Switch button one time to enter Volume measurement. You can also short press MEAS to test the length, width, and height. The device will automatically calculate and display the volume.
Video 5.1: Demonstration of volume measurement and other functions.
5.5 Pythagorean Measurement
Under the Pythagorean test, short press the Mode Switch button once to enter the Secondary Pythagorean test function. Press MEAS to measure the length of the hypotenuse (A) and the length of the vertical edge (B). The device will then calculate the length of another vertical side (C).
5.6 Automatic Level and Vertical Measurement
The device features a built-in electronic angle sensor that provides real-time display of the measuring angle. This allows for automatic calculation of horizontal and vertical distances, simplifying complex measurements on uneven surfaces or for determining heights without direct line of sight.
6. Bluetooth Connectivity
The NF-273L supports Bluetooth transmission, allowing you to connect the device to a compatible mobile application. This feature enables:
- Photo Annotation: Overlay measurements onto photos taken with your phone.
- Form Making: Create and fill out measurement forms directly from the app.
- Export Drawings: Export your annotated photos and forms for documentation.
Note: Bluetooth functionality may vary and might not be fully compatible with all iPhone models.
7. Voice Broadcast Function
The NF-273L is equipped with a live voice broadcast function that provides audible feedback for measurements and operational guidance. This feature is particularly useful in noisy environments or when visual confirmation is difficult, allowing for easier recording and verification of data.
8. Data Storage and Retrieval
The device can store up to 100 sets of measurement data. This allows users to record and check previous measurements conveniently without needing to manually write them down. Access the stored data through the device's menu system.
9. Maintenance and Care
- Cleaning: Use a soft, dry cloth to clean the device. Do not use abrasive cleaners or solvents. Ensure the laser lens is kept clean for accurate measurements.
- Storage: Store the device in a cool, dry place away from direct sunlight and extreme temperatures. If storing for an extended period, ensure the battery is partially charged and remove it if recommended by the manufacturer to prevent leakage.
- Handling: Avoid dropping the device or subjecting it to strong impacts. While durable, excessive force can damage internal components.
- Battery Care: Recharge the battery regularly to maintain its lifespan. Avoid fully discharging the battery frequently.
10. Troubleshooting
10.1 Common Issues and Solutions
| Problem | Possible Cause | Solution |
|---|---|---|
| Device does not power on | Low battery or battery not installed correctly. | Charge the battery or ensure it is correctly installed. |
| Inaccurate measurements | Dirty laser lens, unsuitable measuring surface, or incorrect benchmark setting. | Clean the laser lens, measure on a reflective surface, or adjust the benchmark. |
| Bluetooth connection issues | Bluetooth not enabled, device out of range, or app compatibility issues. | Ensure Bluetooth is on, move closer to the connected device, or check app requirements. |
| Voice broadcast not working | Volume too low or feature disabled in settings. | Adjust volume settings or enable voice broadcast in the menu. |
11. Specifications
| Feature | Detail |
|---|---|
| Model Number | NF-273L |
| Type | Wire Tracker / Laser Distance Meter |
| Brand Name | NOYAFA |
| Certification | CE |
| Battery Included | Yes (Rechargeable Lithium Battery, 750mAh) |
| Display | 2.0 inch HD Color Screen |
| Laser Type | Green Beam Laser (500-535 nm, <1mW, Class II) |
| Max Range | 60M / 120M (depending on variant) |
| Precision | ±1.5 mm |
| Data Storage | Up to 100 sets |
| Laser Auto-off | 30 seconds |
| Auto-off Time | 2 minutes |
| Working Temperature | 0℃ to 40℃ (32℉ to 104℉) |
| Storage Temperature | -10℃ to 60℃ (14℉ to 140℉) |
| Protection Level | IP40 |
| Dimensions | Approx. 115mm x 51mm x 23mm |
12. User Tips
- For best accuracy, especially over longer distances or in bright conditions, use a reflective target surface.
- When measuring outdoors, the green laser beam offers better visibility compared to red lasers, improving ease of use.
- Utilize the voice broadcast feature to confirm measurements without needing to constantly look at the screen, which can be helpful in dynamic work environments.
- Regularly check the battery level and recharge as needed to avoid interruptions during critical tasks.
- Explore the mobile app connectivity to streamline your workflow by annotating photos with measurements and organizing project data digitally.
13. Warranty and Support
NOYAFA products are designed for reliability and performance. For any technical assistance, troubleshooting beyond this manual, or warranty inquiries, please refer to the official NOYAFA website or contact their customer support directly. Keep your purchase receipt as proof of purchase for warranty claims.
