Amprobe ULD-405 Ultrasonic Leak Detector

Amprobe ULD-405 Ultrasonic Leak Detector

The Amprobe ULD-405 Ultrasonic Leak Detector is a handheld diagnostic instrument designed to detect ultrasonic sound generated by air and gas leaks, mechanical wear, and electrical discharge. It converts high-frequency ultrasonic signals into audible sound to assist in locating leak sources in industrial and facility environments.

Leak Detection Features

• 20 kHz to 90 kHz frequency range
• 2.5" LCD display with bargraph indicator
• Adjustable receiver sensitivity for pinpointing leak sources
• Parabola accessory to direct ultrasound toward the sensor
• Detachable tubular extension for access to confined areas

Detection Method and Operation

The ULD-405 detects ultrasonic sound waves produced by pressurized air leaks and mechanical vibration. The LCD bargraph indicates signal strength relative to proximity, while the instrument converts ultrasonic frequencies into audible sound for verification through connected headphones.

Typical Applications

• Compressed air and gas systems
• Valves, tanks, and piping networks
• HVAC and refrigeration systems