Mastech MS8902A Adjustable Non-Contact AC Voltage Detection Pen

The Mastech MS8902A is a professional non-contact AC voltage detector designed for the safe detection of live AC voltage without direct electrical contact. Featuring adjustable sensitivity, audible and visual alarms, and a compact pen-style design, it enables electricians, maintenance personnel, and DIY users to quickly identify energized wires, outlets, switches, circuit breakers, and electrical equipment. Its non-contact operation enhances user safety during troubleshooting and maintenance tasks.

Key Features -

• Non-contact AC voltage detection for safe operation

• Adjustable sensitivity for detecting low and high voltage sources

• Visual LED indication and audible buzzer alarm

• Pen-style compact and lightweight design

• Detects live wires without touching exposed conductors

• Suitable for locating live cables inside walls and conduits

• Battery-powered portable operation

• Ideal for electrical maintenance and troubleshooting

Specifications -

• Product Type - Non-Contact AC Voltage Detector

• Model - MS8902A

• Brand - Mastech

• Detection Method - Non-Contact Electric Field Detection

• Sensitivity - Adjustable

• Voltage Detection - AC Voltage Only

• Indication - LED Light and Audible Buzzer

• Power Source - Battery Operated

• Form Factor - Pen Style

• Application - Live Wire Detection and Voltage Presence Testing

Applications -

• Detecting live AC wires

• Electrical outlet testing

• Switch and socket inspection

• Circuit breaker identification

• Cable tracing inside walls

• Electrical maintenance and servicing

• Industrial equipment inspection

• Home electrical repairs

• HVAC servicing

• General electrical troubleshooting