·Dual Alarms: This circuit voltage tester is equipped with a sound and light dual alarm system - green light with a slow beep indicates low voltage, and a red light with a rapid beep indicates high voltage. It allows users to easily distinguish live and null wires through different alarm levels and LED indicators.

·Non-Contact Testing: Our voltage detector ensures safer electrical testing by detecting voltage without direct contact, reducing the risk of electric shock. Equipped with an NCV (Non-Contact Voltage) sensor, it is ideal for breakpoint testing and provides reliable and efficient voltage detection for electrical repairs and troubleshooting.

·Adjustable Sensitivity: Adapt to different testing needs with adjustable sensitivity levels. Short press to select "High" sensitivity for a 12V-1000V range or "Low" sensitivity for 48V-1000V, ensuring flexibility for various work scenarios.

·Wide Applications: With a CAT III 1000V rating, this electrical tester pen ensures safe and reliable testing across various electrical applications. It is suitable for home appliance repair, industrial equipment inspection, power line maintenance, and more.

·User-Friendly Designs: This non-contact voltage tester features a pocket clip for easy portability and a low battery indicator that provides a timely reminder to replace the battery. And the 3-minute auto shutoff function helps conserve battery energy, making it a reliable and practical tool for voltage inspections.