1. Product Overview
The ZOYI ZTDB03 is an intelligent non-contact AC voltage detector designed for electrical inspection, temperature measurement, and circuit continuity testing. It features audible and visual alarms, power failure detection, intelligent sensing, and adjustable sensitivity, making it a versatile tool for electricians and DIY enthusiasts.
The device is compact and easy to carry, designed for convenience and safety in various electrical tasks.
2. Setup
2.1 Battery Installation
The ZTDB03 requires 2 x 1.5V AAA batteries (included). To install or replace batteries:
- Unscrew the cap at the top of the detector.
- Insert the batteries according to the positive (+) and negative (-) terminals indicated inside the battery compartment.
- Securely screw the cap back on.
2.2 Power On/Off
Press the red power button to turn the device on. The display will light up. To turn off, press and hold the red power button, or the device will automatically shut down after 15 minutes of inactivity if no AC voltage is measured.
3. Operating Instructions
3.1 Non-Contact AC Voltage Detection (NCV)
The ZTDB03 can detect AC voltage in a range of 12-1000V or 48-1000V, with adjustable sensitivity. Bring the detector's tip close to the wire or outlet you wish to test. The device will provide audible and visual alarms (red light for live wire, green light for neutral/weak electric field) if voltage is detected.
3.2 Sensitivity Adjustment
After powering on, press the 'left arrow' and 'right arrow' keys to adjust the sensitivity of the voltage detection. This allows for precise measurements in different environments.
3.3 Live and Neutral Wire Identification
When testing, a red light flashing quickly indicates a live wire. A green light flashing slowly indicates a neutral wire or a weak electric field.
3.4 Temperature Measurement
The ZTDB03 can display the ambient temperature. Use the appropriate button (often indicated by a thermometer icon or C/F) to switch to temperature display mode. The display will show the temperature in Celsius or Fahrenheit.
3.5 LED Illumination
For measurements in dark environments, the ZTDB03 is equipped with a white LED light at the tip. Activate this feature to illuminate the testing area, making measurements more convenient and safer.
4. Maintenance
4.1 Cleaning
Wipe the device with a dry, clean cloth. Do not use abrasive cleaners or solvents that may damage the casing or display.
4.2 Storage
Store the ZTDB03 in a cool, dry place, away from direct sunlight and extreme temperatures. If storing for extended periods, remove the batteries to prevent leakage.
5. Troubleshooting
5.1 Low Battery Alert
The device features a 'LOW BATT' indicator. When this indicator appears, replace the batteries promptly to ensure accurate readings and proper functionality.
5.2 Automatic Shutdown
The ZTDB03 is designed to automatically shut down after 15 minutes of no operation and no AC voltage measurement. This feature conserves battery life. If the device turns off unexpectedly, simply press the power button to restart it.
6. Specifications
| Feature | Specification |
|---|---|
| Brand Name | ZOYI |
| Model Number | DB03 |
| DIY Supplies | Electrical |
| Display Type | Digital Only |
| Power Supply | Battery (2 x 1.5V AAA) |
| Battery Included | Yes |
| Voltage Range (AC) | 12-1000V (High Sensitivity) / 48-1000V |
| Frequency | 50Hz/60Hz |
| Alarm | Sound and light double alarm |
| Flashlight | White LED |
| Automatic Power Off | Yes (after 15 minutes of inactivity) |
| Low Battery Alert | Yes |
| Use Temperature | 0°C ~ 40°C |
| Storage Temperature | -10°C ~ 50°C |
| Altitude | <2000m |
| Safety Level | CE CAT.II 1000V |
| Dimensions | 23*28*156mm |
| Weight | 33g |
7. User Tips
- Always test the detector on a known live circuit before use to ensure it is functioning correctly.
- When identifying live and neutral wires, observe both the speed of the flashing light and the audible alarm for confirmation.
- Utilize the adjustable sensitivity feature to avoid false positives in environments with strong electromagnetic interference.
- The built-in LED flashlight is highly useful in dimly lit areas, improving both safety and accuracy during inspections.
8. Warranty and Support
For warranty information, technical support, or service inquiries, please contact your retailer or the manufacturer directly. Keep your purchase receipt as proof of purchase.
