1. הקדמה
Thank you for choosing the WANLUTECH LT-40 Mini Laser Distance Meter. This compact and versatile tool is designed for accurate distance, area, and volume measurements, featuring multiple measurement modes and a clear LCD backlight. This manual provides essential information for safe and effective use of your device.
2. פּראָדוקט איבערview
2.1 שליסל פֿעיִקייטן
- Multiple Measurement Modes: Includes single, continuous, area, volume, and Pythagorean measurements.
- Compact Design: Small size (5.6 x 1.2 x 2.1 cm) and lightweight (28g) with an aluminum alloy housing for portability.
- Long Measuring Distance: Measures up to 131ft (40m).
- USB Charging: Convenient micro-USB charging port.
- LCD Backlight: Ensures clear data readability in various lighting conditions.
- Selectable Reference Points: Choose between front or rear reference for measurements.
- Unit Conversion: Switch between meters (m), inches (in), and feet (ft).
2.2 דעווייס קאָמפּאָנענטן און אַרויסווייַזונג
The following diagram illustrates the main components and display indicators of the LT-40 Laser Distance Meter.

Figure 1: LT-40 Device Layout and Function Buttons

Figure 2: LT-40 Display Indicators and Dimensions
- הויפּט קנעפּל: Used for power on, single measurement, and confirming selections.
- פֿ/ר קנעפּל: Functions switch / Front-Rear reference switch.
- Power Off / Backlit Button: Turns the device off and controls the LCD backlight.
- ווייַז: Shows measurement values, units, battery status, laser strength, and measurement mode icons.
3. סעטאַפּ
3.1 טשאַרדזשינג די מיטל
The LT-40 features a built-in Lithium-Ion battery and is rechargeable via a micro-USB port.
- Connect the provided micro-USB cable to the device's charging port.
- פֿאַרבינדט דעם אַנדערן עק פֿונעם USB קאַבל צו אַ נאָרמאַלן USB מאַכט אַדאַפּטער (נישט אַרייַנגערעכנט) אָדער אַ קאָמפּיוטער'ס USB פּאָרט.
- The battery indicator on the display will show charging status. Charge fully before first use.

פיגור 3: USB טשאַרדזשינג פּאָרט
3.2 Powering On/Off and Backlight
- מאַכט אויף: קורץ דריקן די הויפּט קנעפּל.
- מאַכט אַוועק: Long press the Power Off / Backlit button.
- באַקלייט קאָנטראָל: Short press the Power Off / Backlit button to toggle the LCD backlight on or off.

Figure 4: LCD Backlight in Operation
3.3 שטעלן מעסטונג רעפערענץ פונקט
The device allows you to choose the measurement reference point:
- Front Reference: Measurements are taken from the front edge of the device. The device's length is not included in the result.
- Rear Reference: Measurements are taken from the rear edge of the device. The device's length is included in the result.
To switch between reference points, short press the פ/ר button. An icon on the display will indicate the currently selected reference point.
3.4 טשאַנגינג מעאַסורעמענט וניץ
The LT-40 supports meters (m), inches (in), and feet (ft).
- To cycle through units, long press the פ/ר button. The unit displayed on the screen will change accordingly.
4. Operation - Measurement Modes
The LT-40 offers various measurement functions. To switch between modes, short press the פ/ר button until the desired mode icon appears on the display.
4.1 איין מעזשערמאַנט
Measures the direct distance between the device and a target.
- קער אויף די מיטל.
- Point the laser at the desired target.
- Short press the main button to emit the laser.
- Short press the main button again to take the measurement. The result will be displayed instantly.

פיגור 5: איין מעסטונג
4.2 קאָנטינויִערלעכע מעסטונג (טראַקינג)
Measures distances continuously as the device is moved, displaying real-time maximum and minimum values.
- קער אויף די מיטל.
- Long press the main button for approximately 1 second to enter continuous measurement mode.
- Move the device slowly. The display will update with real-time measurements, showing MAX and MIN values.
- Short press the main button again to exit continuous measurement mode.

פיגור 6: קאָנטינויִערלעכע מעסטונג
4.3 שטח מעזשערמאַנט
Calculates the area of a rectangular surface by measuring two sides.
- Select the Area Measurement mode (icon: rectangle).
- Short press the main button to measure the first side (e.g., length).
- Short press the main button again to measure the second side (e.g., width).
- דער אַפּאַראַט וועט אויטאָמאַטיש רעכענען און ווייַזן די שטח.

פיגור 7: שטח מעסטונג
4.4 באנד מעזשערמאַנט
רעכנט אויס דעם פארנעם פון א פלאץ דורך מעסטן דריי דימענסיעס.
- Select the Volume Measurement mode (icon: cube).
- Short press the main button to measure the first dimension (e.g., length).
- Short press the main button again to measure the second dimension (e.g., width).
- Short press the main button a third time to measure the third dimension (e.g., height).
- דער אַפּאַראַט וועט אויטאָמאַטיש רעכענען און ווייַזן די באַנד.

פיגור 8: וואָלומען מעסטונג
4.5 פּיטהאַגאָרעאַן מעסטונג
Uses the Pythagorean theorem to calculate indirect distances.

פיגור 9: פּיטהאַגאָרעאַן מעסטונג מאָדעס
4.5.1 Primary Pythagorean Mode (Indirect Height)
Calculates the height of an object (side 'a') by measuring the hypotenuse ('c') and the base ('b').
- Select the Primary Pythagorean mode (icon: right triangle with 'a' unknown).
- Short press the main button to measure the hypotenuse (data 'c').
- Short press the main button again to measure the base (data 'b').
- The device will automatically calculate and display the height (data 'a').
4.5.2 Secondary Pythagorean Mode (Data Addition)
Calculates a total height (a1+a2) by measuring two hypotenuses and two bases.
- Select the Secondary Pythagorean mode (data addition) (icon: two right triangles stacked).
- Short press the main button to measure the first hypotenuse (data 'c').
- Short press the main button again to measure the first base (data 'b').
- Short press the main button a third time to measure the second hypotenuse (data 'e').
- The device will automatically calculate and display the total height (a1+a2).
4.5.3 Secondary Pythagorean Mode (Data Subtraction)
Calculates a height difference (a) by measuring two hypotenuses and two bases.
- Select the Secondary Pythagorean mode (data subtraction) (icon: two right triangles overlapping).
- Short press the main button to measure the first hypotenuse (data 'e').
- Short press the main button again to measure the first base (data 'c').
- Short press the main button a third time to measure the second base (data 'b').
- The device will automatically calculate and display the height difference (data 'a').
5. וישאַלט
5.1 רייניקונג
- ווישן די מיטל מיט אַ ווייך, דamp שטאָף. דו זאלסט נישט נוצן אַברייסיוו קלינערז אָדער סאָלוואַנץ.
- Keep the laser lens clean and free of dust or debris to ensure accurate measurements. Use a soft, lint-free cloth for the lens.
5.2 סטאָרידזש
- האַלט דעם אַפּאַראַט אין אַ קיל, טרוקן אָרט, אַוועק פון דירעקט זונשייַן און עקסטרעמע טעמפּעראַטורן.
- If storing for an extended period, ensure the battery is partially charged (around 50%) to prolong battery life.
6. טראָובלעשאָאָטינג
If you encounter issues with your LT-40, please refer to the following common problems and solutions:
| פּראָבלעם | מעגלעך סיבה | לייזונג |
|---|---|---|
| די מיטל טוט נישט מאַכט אויף | נידעריק באַטאַרייע אָדער קיין אָפּצאָל | לאָדט אויף דעם מיטל מיטן USB קאַבל. |
| ומפּינקטלעך מעזשערמאַנץ | Laser lens is dirty; Unstable measurement surface; Incorrect reference point selected; Strong light interference. | Clean the laser lens; Ensure a stable surface; Verify the front/rear reference setting; Measure in a shaded area or use a target plate in bright conditions. |
| ווייַז איז טונקל אָדער אַנרידאַבאַל | Backlight is off; Low battery. | Short press the Power Off / Backlit button to turn on the backlight; Charge the device. |
| די דעווייס פרירט זיך אדער ווערט נישט-רעאגירנדיק | צייטווייליגע ווייכווארג פראבלעם. | Long press the Power Off / Backlit button to force a shutdown, then restart the device. |
7. ספּעסאַפאַקיישאַנז
| שטריך | באַשרייַבונג |
|---|---|
| מאָדעל | LT-40 |
| מעאַסורינג קייט | אַרויף צו 40 מעטער (131ft) |
| וניץ | עם / אין / פט |
| לייזער קלאַס | Class II, Output power <1mW |
| באַטערי טיפּ | Lithium-Ion (rechargeable via Micro-USB) |
| מאַטעריאַל | אַלומינום צומיש און אַבס |
| קאָליר | גרוי |
| פּראָדוקט דימענשאַנז | 5.6 X 1.2 X 2.1 סענטימעטער |
| פּונקט וואָג | 28 ג |
| וואַסער קעגנשטעל מדרגה | וואָטערפּרוף (IP54 שאַץ) |
8. וואָראַנטי & שטיצן
WANLUTECH is dedicated to providing high-quality products and excellent customer service. For any questions, technical support, or warranty inquiries regarding your LT-40 Mini Laser Distance Meter, please contact our customer support team through the retailer where you purchased the product or visit the official WANLUTECH webפּלאַץ פֿאַר קאָנטאַקט אינפֿאָרמאַציע.
ביטע האַלטן דיין דערווייַז פון קויפן פֿאַר וואָראַנטי קליימז.





