CEM AC-9B Voltage Detector Pen

The CEM AC-9B Non-Contact Voltage Detector Pen is a professional electrical safety tester designed for fast and reliable AC voltage detection without direct contact with live conductors. With a wide detection range of 12V to 1000V, it enables electricians, maintenance technicians, and field engineers to quickly identify the presence of voltage in outlets, cables, switches, circuit breakers, and electrical equipment. Its advanced non-contact sensing technology provides safe and convenient voltage testing for everyday electrical work.

Designed for demanding professional environments, the AC-9B features clear visual LED indicators, audible alarms, and a built-in LED flashlight for convenient operation in low-light conditions. Its compact, rugged double-molded housing and high electrical safety rating ensure dependable performance during installation, maintenance, inspection, and troubleshooting tasks, making it an ideal tool for both professional technicians and everyday electrical safety checks.

Features

• Wide detection range: Non-contact detection of AC voltage from 12V to 1000V.
• Non-contact voltage sensing: Identifies the presence of voltage without touching live wires, improving user safety.
• Red LED indicators: Provides clear visual alerts when voltage is detected, even in low-light environments.
• Audible buzzer alarm: Emits a sound signal when voltage is present, offering both visual and audible warnings.
• Built-in flashlight: Helps users work easily in dark or confined areas such as electrical panels.
• Auto power-off: Conserves battery life by automatically shutting down when not in use.
• Self-test function: Automatically checks device operation to ensure reliable measurements.
• Durable double-molded housing: Strong, impact-resistant design built for long-term professional use.
• CAT IV 1000V safety rating: Certified for the highest level of electrical protection.
• Compact and lightweight: Weighs only 48 g, making it convenient for technicians to carry and use.

Technical Specifications