Voltage Detector – ATP [2550] | Non‑Contact AC Voltage Tester

The ATP [2550] Voltage Detector is a compact, pen‑style non‑contact voltage tester designed for safe, quick, and reliable detection of AC voltage. Housed in a durable, impact‑resistant ABS casing and fitted with a practical pocket clip, this tester is ideal for use in school science laboratories, workshops, and general educational environments.

Simple to operate, the detector requires no direct contact with live conductors—just place the white sensor tip near the cable, socket, or appliance under test. When voltage is present, a bright red LED indicator activates alongside a clear audible alarm (90dBA), providing immediate visual and sound confirmation. An integrated LED torch allows safe testing even in poorly lit areas.

Capable of detecting AC voltages from 90V to 1000V, the ATP 2550 is suitable for checking household appliances, electrical equipment, power leads, and laboratory setups. The unit is supplied with batteries, making it ready for use straight out of the box.

Key Features

• Non‑contact AC voltage detection for safe testing
• Detection range from 90V AC to 1000V AC
• Visual red LED voltage indicator
• Audible alarm (90dBA) for clear warning
• Built‑in LED light for testing in dark areas
• Compact pen‑type design with pocket clip
• Impact‑resistant ABS case for durability
• Ideal for household appliances and electronic equipment
• Batteries included – ready to use

Ideal for School Science Lessons & Electrical Safety Training

The ATP [2550] Voltage Detector is a valuable tool for KS3, GCSE, and A‑Level science and physics lessons, helping students and teachers demonstrate and maintain safe electrical working practices. Its non‑contact operation makes it especially suitable for educational use where safety is paramount.

• Demonstrating electrical safety principles in physics lessons
• Checking equipment before practical electricity experiments
• Supporting risk assessments in science labs and workshops
• Identifying live circuits without direct contact
• Teaching students how voltage is safely detected

Compact, reliable, and easy to use, the ATP Voltage Detector is an essential safety aid that supports confident teaching and responsible electrical handling in schools and colleges.