1. Introdução
Thank you for choosing the NJTY Voltage Tester & Digital Multimeter Bundle. This comprehensive kit provides essential tools for electrical testing, suitable for both DIY projects and professional applications. This manual provides detailed instructions for the safe and effective use of both the Digital Multimeter and the Non-Contact Voltage testador.
2. Produto acabadoview
This bundle includes two primary devices:
- NJTY T3 Digital Multimeter: A compact device with a vibrant color screen for precise measurements of AC/DC voltage, continuity, resistance, and more.
- NJTY Non-Contact Voltage testador: A pen-style tester with voice alerts for identifying live and neutral wires, featuring non-contact voltage detection and breakpoint testing.

Figure 2.1: The NJTY Voltage Tester and Digital Multimeter Bundle.
3. Configuração
3.1. NJTY T3 Digital Multimeter Setup
The NJTY T3 Digital Multimeter features a built-in rechargeable battery. Before first use, ensure the device is fully charged.
- Carregamento: Connect the multimeter to a standard USB power source using the provided Type-C USB cable. The charging indicator will illuminate.
- Cabos de teste: Insert the red test lead into the 'VΩmA' input jack and the black test lead into the 'COM' input jack. Ensure a secure connection.

Figure 3.1: The NJTY T3 Digital Multimeter connected for Type-C charging.
3.2. NJTY Non-Contact Voltage Tester Setup
O Vol Sem Contatotage Tester is typically powered by internal batteries. Ensure they are properly installed or charged if rechargeable.
- Ligar: Press the power button to turn on the device. A self-test may occur.
4. Instruções de operação
4.1. NJTY T3 Digital Multimeter Operation
The multimeter features an auto-function scan for ease of use.
- Ligar/desligar: Press and hold the power button to turn the multimeter on or off.
- Auto Function Scan: The multimeter automatically detects the type of measurement (AC/DC voltage, resistance, continuity) when the test leads are connected to a circuit.
- Medindo Vol AC/DCtage: Connect the test leads across the circuit or component to measure voltage. The display will show the reading.
- Teste de continuidade: In continuity mode, the multimeter will emit an audible beep if the resistance between the two test points is below approximately 50Ω, indicating a continuous circuit.
- Medição de Resistência: Connect the test leads across the component to measure its resistance.
- NCV (Vol sem contatotage) Detecção: Move the top of the multimeter near an AC voltage source. The device will indicate the presence of voltage sem contato direto.
- Dados em espera: Pressione o botão 'HOLD' para congelar a leitura atual no visor. Pressione novamente para liberar.
- Lanterna/Luz de fundo: The multimeter includes a built-in flashlight and backlight for improved visibility in dark environments.

Figure 4.1: Key features and display of the NJTY T3 Digital Multimeter.

Figura 4.2: Volume sem contatotage (NCV) detection with the Digital Multimeter.

Figure 4.3: The flashlight function of the Digital Multimeter for dark environments.
4.2. NJTY Non-Contact Voltage Operação do Testador
O voltage tester is designed for quick and safe voltage detecção.
- NCV (Vol sem contatotage) Detecção: Place the tip of the tester near a wire or outlet. The device will indicate the presence of AC voltage por meio de alertas visuais e sonoros.
- Ajuste de Sensibilidade: The tester offers dual sensitivity ranges (12-1000V and 48-1000V). Use the sensitivity button to switch between low and high sensitivity modes as needed for different applications.
- Identificação de fios fase/neutro: The tester uses voice alerts to audibly distinguish between live (hot) and neutral wires, enhancing safety and ease of identification.
- Break-Point Test: Use the tester to identify breaks in wires or cables. Move the tester along the wire; the absence of a signal indicates a break.
- Flashlight & Laser: The tester includes a built-in flashlight for illuminating work areas and a laser for precise alignment or pointing.

Figure 4.4: Sensitivity adjustment feature of the Voltage testador.

Figure 4.5: The Voltage Tester's voice alert system for identifying live wires.

Figure 4.6: Using the Voltage Tester for break-point detection in wires.

Figure 4.7: The Voltage Tester's integrated flashlight and laser for enhanced utility.
5. Manutenção
- Limpeza: Limpe os dispositivos com um pano seco e limpo. Não utilize produtos de limpeza abrasivos ou solventes.
- Armazenar: Store the bundle in a cool, dry place, away from direct sunlight and extreme temperatures.
- Battery Care (Multimeter): Recharge the multimeter regularly, especially if it will not be used for an extended period, to maintain battery health.
6. Solução De Problemas
- Dispositivo não liga: Ensure the battery is charged (Multimeter) or properly installed (Voltage Tester).
- Inaccurate Readings (Multimeter): Check test lead connections. Ensure the correct measurement mode is selected (though auto-scan helps).
- No Detection (Voltage Tester): Ensure the device is powered on. Adjust sensitivity if necessary.
- Operação intermitente: Verifique se há conexões soltas ou bateria fraca.
7. Especificações
7.1. NJTY T3 Digital Multimeter
| Parâmetro | Valor |
|---|---|
| Exibir contagens | 4000 contagens |
| Vol. CAtage Alcance | 0.8 V - 600 V |
| Vol. DCtage Alcance | 1.0 V - 600 V |
| Faixa de resistência | 0 - 40MΩ |
| Continuity Threshold | <50Ω |
| Fonte de energia | Rechargeable (Type-C) |
7.2. NJTY Non-Contact Voltage testador
| Parâmetro | Valor |
|---|---|
| Vol. CAtage Range (Low Sensitivity) | 12 V - 1000 V |
| Vol. CAtage Range (High Sensitivity) | 48 V - 1000 V |
| Faixa de frequência | 50/60Hz |
| Classificação de segurança | EN61010-1/1000V CAT III |
8. Informações de segurança
AVISO: Sempre tome extremo cuidado ao trabalhar com eletricidade. O não cumprimento das normas de segurança pode resultar em ferimentos graves ou morte.
- Always test on a known live circuit before use to ensure the device is functioning correctly.
- Do not use the devices if they appear damaged or are not operating properly.
- Do not exceed the maximum input values specified for each device.
- Utilize equipamento de proteção individual (EPI) adequado, como luvas isolantes e óculos de segurança.
- Do not attempt to repair or modify the devices. Refer all servicing to qualified personnel.
- Mantenha fora do alcance de crianças.
9. Garantia e Suporte
NJTY products are designed for reliability and performance. For warranty information, technical support, or service inquiries, please refer to the contact information provided with your purchase or visit the official NJTY website. Guarde o comprovante de compra para solicitações de garantia.





