1. Bubuka
The NDI 5-in-1 Multi-Function Stud Finder is a versatile tool designed for accurate detection of studs, metal, and live AC wires behind walls, floors, and ceilings. It also integrates a laser distance meter and a laser liner for various measurement and alignment tasks. This manual provides detailed instructions for safe and effective operation of your device.

Figure 1: NDI 5-in-1 Multi-Function Stud Finder (KC-109D)
This device combines five essential functions:
- Stud Joist Finder
- Deteksi logam
- AC Live Wire Detection
- Laser Jarak Méter
- Lapisan laser

Gambar 2: Leuwihview of the 5-in-1 functions.
2. Setélan
2.1. Unboxing sareng Inspeksi Awal
Carefully remove all components from the packaging. Verify that all items listed in the product's packing list are present and undamaged. The package typically includes the main unit, a user manual, and 3 AAA batteries.
Video 1: Product unboxing and feature overview. This video demonstrates the initial unboxing of the NDI 5-in-1 Multi-Function Detector, showcasing its compact design and the included accessories. It also highlights key features such as the LCD screen, detection button, and various mode switches for different functions.
2.2. Pamasangan batré
The device requires 3 AAA batteries for operation. To install the batteries:
- Teang tempat panutup kompartemen batre dina tonggong alat.
- Geser panutupna muka.
- Insert 3 AAA batteries, ensuring correct polarity (+ and - ends match the indicators inside the compartment).
- Tutup panutup kompartemen batré aman.
The device is designed for electricity saving with an automatic turn-off feature and provides an indication of insufficient battery volume on the LCD display.

Figure 3: Device dimensions and indicators for battery volume and automatic turn-off.
3. Parentah Operasi
3.1. General Controls and Display
The device features an LCD screen for displaying information and several buttons for control:
- Tombol Hurung/Pareum: Pencét terus tahan pikeun ngahurungkeun atawa mareuman alat.
- Tombol Pindah Mode: Cycles through Detection mode, Laser Ranging mode, and Laser Marking mode.
- Up/Down Selection Buttons: Used for switching selections (e.g., detection types, measurement modes, laser line duration) and adjusting settings.
- Detection Button (MEAS): Located on the side, press and hold to start detection in detection mode, or to turn on the laser and initiate measurement in laser distance mode.
The LCD screen displays the detection object, signal indication, distance data, angle, laser marking duration, and distance measurement results.
3.2. Detection Mode (Stud, Metal, AC Live Wire)
In detection mode, the device can locate hidden objects behind surfaces. Ensure the device is calibrated before use by placing it flat against the surface and pressing the detection button until calibration is complete.
3.2.1. Metal Detection
To detect metal objects (ferromagnetic like steel bars or non-magnetic like copper tubes):
- Switch to metal detection mode using the Up/Down selection buttons.
- Gently stick the device to the tested surface.
- After hearing a "beep" sound, slowly move the device forward.
- Continue to move forward when the signal bar is full.
- Move in the opposite direction until the signal bar becomes smaller.
- Once again, the signal bar will fill and buzz, indicating the position of the metal object and its properties (ferromagnetic or non-ferromagnetic).

Figure 4: Metal detection in progress, showing signal strength on the display.
3.2.2. AC Live Wire Detection
To detect energized AC live wires:
- Switch to AC live wire detection mode.
- Gently stick the device to the tested surface.
- After hearing a "beep" sound, slowly move the device forward.
- Continue to move forward when the signal bar is full.
- Move in the opposite direction until the signal bar becomes smaller.
- Once again, the signal bar will fill and buzz, indicating the location of the AC live wire.
- Shift back and forth repeatedly to obtain more accurate results.

Figure 5: AC live wire detection in progress, showing signal strength and warning indicator.
3.2.3. Stud/Joist Finder
To detect wooden studs or joists:
- Switch to joist detection mode.
- Gently stick the device to the tested surface.
- After hearing a "beep" sound, slowly move the device forward.
- The signal bar will fill and buzz, indicating the position of the stud.
- Shift back and forth repeatedly to obtain more accurate results and pinpoint the edges and center of the stud.

Figure 6: Stud joist finding in progress, showing signal strength on the display.
3.3. Laser Distance Meter Mode
This mode allows for precise distance measurements.
- Switching Measurement Modes: Short press the Up selection button to cycle through measurement modes: Length, Area, Volume, Trigonometric height measurement, Double trigonometric height measurement, and Trigonometric half height measurement.
- Switching Ranging Benchmark: Long press the Up selection button to switch between Front reference and Rear reference.
- Switching Measurement Unit: Long press the Down selection button to switch between Metric and Imperial units.
- Measurement Button (MEAS):
- Short press to turn on the laser, then short press again to start the measurement and display the result.
- Long press to continuously measure and dynamically display the measurement results.
- Long press and hold again to stop continuous measurement.

Figure 7: Using the laser distance meter function to measure distance.
3.4. Laser Liner Mode
The laser liner projects horizontal or vertical lines for alignment tasks.
- Line Duration Switching: In laser marking mode, short press the Up selection button to switch between 10 minutes, 30 minutes, 60 minutes, or 0 minutes (laser line off).
- Line Marking Mode Switching: Short press the Down selection button to switch between Horizontal + Vertical, Horizontal only, or Vertical only laser lines.
- Angle Display Mode Switching: Short press the Power button to switch between Horizontal angle (H) and Vertical angle (U) display modes.
To ensure the laser line is horizontal, gently attach the device to the wall and switch to the vertical angle (U) display mode. Fine-tune the angle to 0°, indicating that the laser line is horizontal. This verifies that the target is level.

Figure 8: Using the laser liner function to project a straight line for alignment.
4. Pangropéa
To ensure the longevity and accuracy of your NDI 5-in-1 Multi-Function Stud Finder, follow these maintenance guidelines:
- Jaga alat tetep bersih sareng garing. Usap bagian luarna ku kaén anu lemesamp lawon. Ulah make cleaners abrasive atawa pangleyur.
- Simpen alat dina tempat anu tiis sareng garing jauh tina sinar panonpoé langsung sareng suhu anu ekstrim.
- Cabut batréna upami alat moal dianggo salami waktos anu lami pikeun nyegah bocor sareng karusakan batré.
- Ulah nepi ka alat muragkeun atawa kakeunaan dampak anu kuat, sabab ieu bisa mangaruhan komponén internal jeung akurasina.
- Ulah nyobian ngabongkar atawa ngalereskeun alat sorangan. Rujuk ka tanaga jasa anu mumpuni pikeun perbaikan naon waé.
5. Cara ngungkulan
If you encounter issues with your NDI 5-in-1 Multi-Function Stud Finder, refer to the following common problems and solutions:
| Masalah | Mungkin Cukang lantaranana | Solusi |
|---|---|---|
| Alat teu hurung. | batré lemah atawa maot; pamasangan batré salah. | Ganti batréna ku anu anyar; pastikeun polaritasna bener. |
| Inaccurate detection results. | Improper calibration; surface too thick or irregular; presence of other materials. | Recalibrate the device on a clear section of the wall; ensure the surface is suitable for scanning. |
| Laser line is not straight or level. | Device not properly aligned or calibrated in laser marking mode. | Ensure the device is gently attached to the wall and fine-tune the angle to 0° in vertical angle display mode. |
| No "beep" sound during detection. | Sound alert is off; device malfunction. | Check device settings for sound alerts (if applicable); if problem persists, contact customer support. |
6. Spésifikasi
| Fitur | Rincian |
|---|---|
| merek | NDI |
| Ngaran modél | 5 IN 1 Multi function meter (KC-109D) |
| Fungsi | Stud Finder, Metal Detection, AC Live Wire Detection, Laser Distance Meter, Laser Liner |
| Warna | Hideung |
| Bahan | palastik |
| Item Beurat | 350 gram |
| Batré Kaasup | Yes (3*AAA) |
| Katerangan batré | Alkali |
| Tingkat Résistansi Cai | Waterproof (IP54) |
| Rentang Ukur | 0.05~30m or 2~1181" |
| Item Ukuran Paket L x W x H | 10.39 x 6.18 x 3.35 inci |
| UPC | 768571707666 |
7. Garansi jeung Rojongan
For warranty information or technical support, please refer to the documentation included with your product or contact NDI customer service directly. You may also visit the official NDI store on Amazon for additional resources and contact details.
NDI Store: Visit the NDI Store on Amazon




