1. Увод
The NOYAFA NF-824 is a versatile and essential tool designed for electrical professionals, home maintenance workers, and DIY enthusiasts. It accurately identifies circuit breakers on energized 90-230V AC electrical systems, performs GFCI outlet tests, and detects non-contact voltage (NCV). Featuring an HD LCD screen with signal strength display and adjustable sensitivity, this device simplifies electrical troubleshooting and enhances safety.
This manual provides detailed instructions for the safe and effective use of your NF-824 Circuit Breaker Finder and GFCI Outlet Tester.
2. Безбедносне информације
Always prioritize safety when working with electrical systems. Failure to follow these safety guidelines may result in electric shock, fire, or personal injury.
- Прочитајте и разумејте сва упутства пре употребе уређаја.
- Не користите уређај ако изгледа оштећено или не функционише исправно.
- Ensure the electrical system is within the specified voltage range (90-230V AC) before testing.
- Always wear appropriate personal protective equipment (PPE), such as safety glasses and insulated gloves, when working with electricity.
- Не покушавајте да отворите или модификујете уређај. Сва сервисирања препустите квалификованом особљу.
- Држите уређај даље од воде и влаге.
- Use caution when testing live circuits. Avoid touching exposed wires or terminals.
- The NCV function is for indication only; always verify voltage with a contact voltage tester before touching wires.
- Do not rely solely on this device for critical safety decisions. Always follow local electrical codes and safety practices.
3. Садржај пакета
Проверите да ли су све ставке присутне у вашем пакету:
- 1x NF-824 Circuit Breaker Finder (Transmitter and Receiver)
- 1x 3-prong to 2-prong adapter
- 1x Light socket adapter
- 1x Alligator clip adapter
- 1к Типе-Ц кабл за пуњење
- 1к упутство за употребу
- 1к торбица за ношење

Figure 1: Complete accessory kit and carrying case for the NF-824.
4. Производ је готовview
4.1. Transmitter (Outlet Tester)
- Test Plug: Connects to standard electrical outlets.
- Master Control Screen: ЛЦД екран који приказује волtage, wiring status, and GFCI trip time.
- Дугме за напајање: Укључује/искључује предајник.
- Дугме ХОЛД: Замрзава тренутно очитавање на екрану.
- GFCI Button: Initiates a GFCI test.
- ЛЕД индикатор статуса: Red/Green light indicating wiring faults.
- Порт за пуњење типа Ц: За пуњење унутрашње батерије.

Figure 2: Transmitter (Outlet Tester) in use, showing correct wiring and voltage.
4.2. Receiver (Breaker Finder)
- NCV Indicator Light: Flashes when non-contact voltagе је откривено.
- Master Control Screen: LCD display showing signal strength and NCV status.
- Прекидач осетљивости: Adjusts the detection level (7 levels).
- Дугме за напајање: Укључује/искључује пријемник.
- ЛЕД светло: Built-in flashlight for dark environments.
- Порт за пуњење типа Ц: За пуњење унутрашње батерије.

Figure 3: Receiver scanning a circuit breaker panel.
5. Подешавање
5.1. Почетно пуњење
Both the transmitter and receiver are equipped with built-in 3.7V lithium batteries. Before first use, fully charge both units using the provided Type-C charging cable. A full charge typically takes a few hours. The battery indicator on the LCD screen will show charging status.

Figure 4: Charging the NF-824 units via Type-C.
5.2. Attaching Adapters (If Needed)
Depending on your testing requirements, attach the appropriate adapter to the transmitter:
- 3-prong to 2-prong adapter: For testing older 2-prong outlets.
- Light socket adapter: For testing light bulb sockets.
- Alligator clip adapter: For direct connection to wires or terminals (use with extreme caution).
6. Упутство за употребу
6.1. Circuit Breaker Finding
- Plug in the Transmitter: Insert the NF-824 transmitter into the electrical outlet or fixture you wish to trace. Ensure it is securely connected. The transmitter's LCD will display the voltage and wiring status.
- Activate the Receiver: Press and hold the power button on the receiver for a few seconds to turn it on. The receiver will enter "SCAN" mode.
- Подесите осетљивост: Use the sensitivity switch on the side of the receiver to set the desired detection level. Start with a lower sensitivity and increase if needed.
- Scan the Breaker Panel: Slowly move the tip of the receiver along the circuit breakers in the electrical panel. Maintain a consistent speed and distance from each breaker.
- Identify the Breaker: The receiver will provide visual (flashing light on the tip, signal strength on LCD) and audible (beeping) indications when it detects the correct circuit breaker. The strongest and most consistent signal indicates the target breaker.
- Потврди: Once identified, turn off the suspected breaker and check if the power to the original outlet/fixture is cut.

Figure 5: Receiver displaying signal strength while scanning.
Video 1: Demonstration of the NOYAFA NF-824 Circuit Breaker Finder in action, showing how to identify the correct breaker in a panel.
6.2. GFCI Outlet Testing
- Plug in the Transmitter: Insert the transmitter into a GFCI-protected outlet.
- Check Wiring Status: Observe the LCD display for the initial wiring status (e.g., "CORRECT").
- Perform GFCI Test: Press the "GFCI" button on the transmitter. The GFCI outlet should trip, cutting power to the outlet. The transmitter's display will show the trip time.
- Ресетујте GFCI: Reset the GFCI outlet by pressing its reset button.
Note: If the GFCI does not trip, it may be faulty and should be inspected by a qualified electrician.
6.3. Нон-Цонтацт Волtage (NCV) Testing
- Activate NCV: The receiver automatically enters NCV mode when powered on.
- Scan for Voltage: Move the tip of the receiver near electrical wires, outlets, or devices.
- Детецт Волtage: Ako AC voltage is present, the NCV indicator light on the receiver's tip will flash, and the LCD will show a signal strength bar. The intensity of the light and the number of bars indicate the strength of the detected voltage.

Figure 6: Receiver performing an NCV test on a cable.
6.4. Wiring Condition Detection
When the transmitter is plugged into an outlet, its LCD screen provides clear visual feedback on the wiring condition. The red/green indicator lights, combined with details on the large screen, can accurately diagnose 6 common wiring faults:
- Исправно ожичење
- Опен Гроунд
- Отворите неутрално
- Отвори Хот
- Вруће/неутрално обрнуто
- Хот/Гроунд Реверсе

Figure 7: Transmitter displaying different wiring fault conditions.
7. Одржавање
- Чишћење: Обришите уређај сувом, меком крпом. Не користите абразивна средства за чишћење или раствараче.
- Складиштење: Store the device in its carrying case in a cool, dry place when not in use.
- Одржавање батерије: Recharge the batteries regularly, even if the device is not used frequently, to maintain battery health.
- инспекција: Periodically inspect the device and accessories for any signs of damage.
КСНУМКС. Решавање проблема
- No Power on Device: Ensure the device is fully charged. Press and hold the power button for a few seconds.
- Inaccurate Breaker Identification:
- Adjust the receiver's sensitivity.
- Ensure the transmitter is securely plugged into the circuit being traced.
- Scan the breakers slowly and consistently.
- Minimize interference from other electrical devices.
- GFCI Test Fails:
- Ensure the outlet is indeed GFCI protected.
- If the GFCI does not trip, the outlet or its wiring may be faulty. Consult a qualified electrician.
- NCV Not Detecting Voltage:
- Ensure the receiver is powered on and in NCV mode.
- Verify that the circuit is live.
- Adjust sensitivity if necessary.
9. Спецификације
| Феатуре | Спецификација |
|---|---|
| Модел бр. | НФ-КСНУМКС |
| Порт за пуњење | Тип-Ц УСБ (5В) |
| Ауто Офф | 30мин |
| Упозорење о ниској снази | Да |
| Outlet Tester Screen | Segment Code LCD |
| Outlet Tester Plug Type | CN, US, EU |
| Outlet Tester Battery | 3.7В 390мАх литијум |
| Outlet Tester Max Operating Current | <50мА |
| Outlet Tester Charging Current | 500мА |
| Outlet Tester Standby Current | ≤10уА |
| Receiver Product Size | 60к38.5к132.5 мм |
| Екран пријемника | Segment Code LCD |
| Receiver Sensitivity Adjustment | 7 нивоа |
| Receiver NCV Range | ≥ AC 90 V |
| Receiver Signal Strength Indicator | 7 Геарс |
| ЛЕД светло пријемника | Да |
| Батерија пријемника | 3.7В 700мАх литијум |
| Receiver Max Operating Current | <100мА |
| Receiver Charging Current | 700мА |
| Receiver Standby Current | ≤10уА |
10. Гаранција и подршка
For warranty information, technical support, or service inquiries, please refer to the product packaging or contact NOYAFA customer service directly. Keep your purchase receipt as proof of purchase.





