1. Bubuka
Thank you for choosing the MASTFUYI Mini Digital Multimeter (Models FY106A/FY106B). This device is a versatile, accurate, and reliable electronic measurement tool designed for both professional electricians and DIY enthusiasts. It supports a wide range of measurement functions including voltage, current, resistance, frequency, capacitance, continuity, diode testing, Non-Contact Voltage (NCV) detection, and live wire checking.
Its compact and portable design, coupled with a large, clear display, makes it convenient for use in various environments. The multimeter incorporates advanced measurement technology to ensure high-precision results and includes built-in safety protection mechanisms for user and equipment safety.

2. Émbaran Kasalametan
Please read and understand all safety instructions before operating the multimeter. Failure to follow these instructions may result in electric shock, fire, or damage to the device.
- Always ensure the multimeter is in good working condition before use.
- Ulah nerapkeun voltage or current that exceeds the maximum rated values specified in the specifications.
- Paké caution nalika gawé bareng voltagnyaeta luhur 30V AC RMS, 42V puncak, atawa 60V DC. Ieu voltagÉta nyababkeun bahaya shock.
- Ensure the test leads are properly connected and in good condition. Do not use damaged test leads.
- Replace the battery promptly when the low battery indicator appears to ensure accurate readings.
- The device features a ceramic safety tube for enhanced protection. Do not bypass or replace it with an incorrect type.

3. Produk Langkungview
The MASTFUYI Mini Digital Multimeter is designed for ease of use and clear readability. Below are the key components and controls for both FY106A and FY106B models.
3.1. Multimeter Components (FY106B shown)

- VA LCD (FY106B) / LCD (FY106A): Digital display for measurement readings.
- Ngalihkeun fungsi: Press to cycle through different measurement functions. Long press for Torch (flashlight).
- Data Locking / Backlight (FY106A long press): Press to hold the current reading on the display. Long press for backlight on FY106A.
- ON/OFF: Tombol daya.
- NCV / LIVE: Button to switch between Non-Contact Voltage and Live Wire Check modes.
- COM Jack: Common input jack for test leads (black).
- Current Jack: Input jack for current measurements (red).
- Jack Input: Soket input pikeun voltasetage, resistance, frequency, capacitance, continuity, and diode measurements (red).
- NCV Probe: Sensor for non-contact voltage deteksi.
- Senter: Illuminates wewengkon gawé.
3.2. Ikon Katerangan

4. Setélan
4.1. Pamasangan batré
The multimeter requires 2 AAA batteries (not included). To install or replace batteries:
- Ensure the multimeter is powered off.
- Tangtukeun lokasi kompartemen batré dina tonggong alat.
- Buka panutup kompartemen batré.
- Pasangkeun dua batré AAA, bari tetep merhatikeun polaritasna (+ sareng -) anu leres.
- Tutup panutup kompartemen batré aman.
5. Modeu Operasi
The multimeter features both automatic and manual measurement modes, providing flexibility for various tasks.
5.1. Modeu Pangukuran Otomatis
In automatic mode, the multimeter intelligently identifies the type of measurement (voltage, resistance, continuity) and selects the appropriate range. This simplifies operation for quick checks.

5.2. Ngalihkeun Manual
For specific measurements or to override automatic detection, press the 'SEL' (Function Switching) button to cycle through available functions. Long press the 'SEL' button to activate the flashlight.

5.3. Specific Measurement Functions
Refer to the video demonstration for a visual guide on using these functions.
Video demonstrating the unboxing and various functions of the FY106B Multimeter, including auto mode, DC/AC voltage, frequency, resistance, continuity, diode, capacitance, DC/AC current, flashlight, data hold, NCV, and zero live line detection.
VoltagPangukuran (DC/AC)
- Connect the red test lead to the 'Input Jack' and the black test lead to the 'COM Jack'.
- Select DC Voltage atanapi AC Voltage mode using the 'SEL' button if not in auto mode.
- Connect the test leads across the component or circuit to measure voltage.

Current Measurement (DC/AC)
- PERHATOSAN: Ensure the circuit is de-energized before connecting the multimeter in series for current measurement.
- Connect the red test lead to the 'Current Jack' and the black test lead to the 'COM Jack'.
- Select DC Current or AC Current mode.
- Break the circuit and connect the multimeter in series with the load.
Résistansi Ukur
- Connect the red test lead to the 'Input Jack' and the black test lead to the 'COM Jack'.
- Pilih modeu Résistansi.
- Connect the test leads across the component to measure its resistance. Ensure the component is isolated from power.

Capacitance Measurement (FY106B only)
- Connect the red test lead to the 'Input Jack' and the black test lead to the 'COM Jack'.
- Pilih modeu Kapasitansi.
- Sambungkeun kabel uji kana kapasitor. Pastikeun kapasitor parantos kosong sateuacan diuji.

Pangukuran Frékuénsi
- Connect the red test lead to the 'Input Jack' and the black test lead to the 'COM Jack'.
- Pilih modeu Frékuénsi.
- Sambungkeun kabel tés kana sumber sinyal.

Uji Kontinuitas
- Connect the red test lead to the 'Input Jack' and the black test lead to the 'COM Jack'.
- Pilih modeu Kontinuitas.
- Touch the test leads to the ends of the circuit or component. A beep indicates continuity.
Diode Test (FY106B only)
- Connect the red test lead to the 'Input Jack' and the black test lead to the 'COM Jack'.
- Pilih modeu Dioda.
- Connect the test leads across the diode. The display will show the forward voltage teundeun.
Non-Kontak Voltage (NCV) Deteksi
- Press the 'NCV/LIVE' button to enter NCV mode.
- Move the NCV probe (top of the multimeter) close to the conductor. The device will beep and display increasing bars as it detects AC voltage.

Live Wire Check
- Press the 'NCV/LIVE' button to enter Live Wire Check mode.
- Insert the red test lead into the live terminal of an AC outlet or touch it to a live wire. The device will indicate if the wire is live.

Data Tahan
- During any measurement, press the 'HOLD' button to freeze the current reading on the display.
- Press 'HOLD' again to release the reading.
Senter
- Long press the 'SEL' (Function Switching) button to turn the flashlight on or off.
6. Spésifikasi
Below are the detailed specifications for the FY106A and FY106B models:

| Fitur | FY106A | FY106B |
|---|---|---|
| Pintonan layar | LCD | LCD VA |
| Métode operasi | Automatic + manual | Automatic + manual |
| AC Ayeuna | 100mA~4A (±3.5%+5) | 100mA~4A (±3.5%+5) |
| DC Ayeuna | 100mA~4A (±2.5%+5) | 100mA~4A (±2.5%+5) |
| AC Voltage | 1V ~ 600V (±1.2% + 3) | 1V ~ 600V (±1.2% + 3) |
| DC Voltage | 1V ~ 600V (±1.2% + 3) | 1V ~ 600V (±1.2% + 3) |
| Résistansi | 50Ω~40MΩ (±1%+2) | 50Ω~40MΩ (±1%+2) |
| Frékuénsi | 9 ~ 40KHz | 9 ~ 40KHz |
| Kasaluyuan | √ | √ |
| Kapasitansi | X | 40000μF |
| Dioda | X | √ |
| NCV | √ | √ |
| Pariksa kawat hirup | √ | √ |
| Ukuran produk | 117 x 56 x 25 mm | 117 x 56 x 26 mm |
| Beurat | Approximately 92g (without battery) | Approximately 92g (without battery) |
| Fungsi umum | Flashlight, low voltage prompt, automatic shutdown, data saving, ceramic safety tube | |
Sertifikasi: CE, FCC, ROHS
7. Pangropéa
7.1. beberesih
Pikeun ngabersihkeun multimeter, usap wadahna ku adamp lawon jeung detergent hampang. Ulah make abrasives atawa pangleyur. Pastikeun alat dipareuman sareng dipegatkeun tina sirkuit naon waé sateuacan beberesih.
7.2. Ngagantian batré
When the low battery indicator appears on the display, replace the batteries as described in the 'Battery Installation' section (4.1). Always use new AAA batteries of the correct type.
8. Cara ngungkulan
- No display/Power issues: Pariksa naha batréna leres dipasang sareng gaduh muatan anu cekap. Ganti batré upami diperlukeun.
- Bacaan anu salah: Ensure the correct measurement function is selected and test leads are properly connected. Verify that the component being tested is isolated from power if required.
- Teu aya sora bip kontinuitas: Check if the circuit is open or if the test leads are faulty.
- NCV teu kadeteksi: Ensure the NCV probe is close enough to the AC voltage sumber.
9. Tips pamaké
- For capacitance measurements, especially with the FY106B model, ensure the capacitor is fully discharged before connecting the multimeter to avoid damage and ensure accurate readings. The FY106B is capable of measuring up to 40000μF.
- Utilize the 'HOLD' function when taking measurements in hard-to-reach areas to easily record the reading after removing the probes.
- The automatic mode is excellent for general checks, but for precise or specific tests, manually select the desired function.
10. Garansi jeung Rojongan
For detailed warranty information and further technical support, please refer to the complete user manual PDF provided with your product. The PDF manual contains additional language options and in-depth diagrams.
You can access the full user manual (PDF) Ieuh.





