Detection of Even the Smallest Leaks
The LD 450 detects ultrasonic signals that are inaudible to the human ear, enabling identification of even very small leaks in compressed air, gas and vacuum systems from several meters away.
Reliable detection of even the smallest leaks in compressed air, gas and vacuum systems – even in extremely noisy industrial environments.
| Measurement Principle: Ultrasonic leak detection |
| Operating Frequency: 40 kHz ± 2 kHz |
| Laser: 630–660 nm, Class 2 |
| Operating Time: > 10 h (Li-Ion battery) |
| Applications: Compressed air, gases, vacuum |
| Measurement Principle: Ultrasonic leak detection |
| Operating Frequency: 40 kHz ± 2 kHz |
| Laser: 630–660 nm, Class 2 |
| Operating Time: > 10 h (Li-Ion battery) |
| Applications: Compressed air, gases, vacuum |
| Parameter | LD 450 |
|---|---|
| Application | Leak detection (compressed air, gases, vacuum), door seals |
| Measuring Principle | Ultrasonic leak detection |
| Operating Frequency [kHz] | 40 ± 2 |
| Connections | 3.5 mm stereo jack for headphones; power socket for external charger |
| Laser – Wavelength [nm] | 630 … 660 |
| Laser – Output Power [mW] | < 1 (Class 2) |
| Operating Time | > 10 h |
| Charging Time | max. 4 h |
| Operating Temperature [°C] | -5 … +50 |
| Storage Temperature [°C] | -20 … +60 |
The LD 450 detects ultrasonic signals that are inaudible to the human ear, enabling identification of even very small leaks in compressed air, gas and vacuum systems from several meters away.
Noise-isolated headphones allow accurate leak detection even in extremely noisy industrial environments where conventional methods often fail.
The integrated laser pointer enables fast and highly accurate targeting and localization of leak points, even in hard-to-reach locations.
A specially designed acoustic horn acts as a directional microphone, concentrating ultrasonic waves and significantly improving leak detection while reducing background noise interference.
Intuitive membrane-keypad controls and adjustable sensitivity allow quick adaptation to different applications and operating conditions.
A modern Li-Ion battery provides more than 10 hours of operation, while the lightweight yet robust design ensures comfortable use in industrial environments.
The LD 450 complies with ASTM E1002-05 requirements for ultrasonic leak detection (Class I instruments), ensuring a proven and reliable measurement method.

Detecting leaks in compressed air and industrial gas systems helps reduce energy losses, improve operational reliability and lower operating costs.

Precise leak detection in pressure and vacuum systems contributes to higher energy efficiency, improved safety and optimized operating costs.

Reliable leak detection in pneumatic systems and production lines ensures stable operating conditions, process repeatability and high product quality.
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