The GT SONIC-S9 is the largest model in the S series and the one chosen when a benchtop unit has to behave like small production equipment. Its 300 x 240 x 150 mm tank holds nine litres, which covers full racks of volumetric glassware, instrument trays, small gearboxes, optical sub assemblies, PCB carriers and mixed laboratory batches in a single cycle. 200 W of ultrasonic power at 40 kHz fills the wider tank floor evenly, and the 300 W heater keeps nine litres within the 30