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SDT TIGHTChecker – Leak Tightness Instrument

TIGHTChecker is an ultrasound solution designed to verify the tightness of closed volumes.

Use the TIGHTChecker to pinpoint the exact location of leaks in vehicles, buildings, tanks and ships. Designed for use with SDT’s ergonomic Flexible sensor and compact T-Sonic1 transmitter.


Tightness integrity is an issue that plagues every industry. TIGHTChecker is an ultrasound solution focused on pinpointing leaks in any volume. Cars, trains, airplanes, buildings, cleanrooms… TIGHTChecker checks them all.


TIGHTChecker is so easy to use. Simply open the box, position the T-SONIC1, seal the volume and listen for leaks. TIGHTChecker’s crystal-clear sound and vibrant color display pinpoints even the smallest leaks.


With so many things to test, TIGHTChecker is in high demand. It’s low entry cost, versatility, and SDT quality make it the most affordable solution for testing everything that leaks. And everything leaks.