The ZOYI ZT-DB03 Voltage Detector Pen is a reliable tool for safe and accurate electrical testing. It features non-contact voltage detection (NCV) with dual-range sensitivity for voltages from 12V to 1000V. The device also includes a live wire tester, ambient temperature display, and built-in flashlight for easy use in low-light environments. Its auto power-off function saves battery life, and the compact, durable design ensures portability and long-term use. Perfect for electricians and DIY enthusiasts, the ZT-DB03 makes electrical troubleshooting safe and efficient.