Helium Leak Detectors

The PHD-4 Helium Leak Detector uses advanced SIPD technology to detect very small leaks with helium concentrations as low as 2 ppm, equivalent to a leak rate of 5 x 10^-6 atm-cc/sec. This makes it far superior to traditional methods like bubble-testing. User-friendly and microprocessor-controlled, the PHD-4 requires no training, with automatic tuning and zeroing. It features a multilingual display (English, French, German, Italian).