Comparison : Item # AT-0927-TT-2-R, AT Series 2730 Hertz (Hz) Resonant Frequency and 9 Millimeter (mm) Diameter Transducer
Item # AT-0927-TT-6-R, AT Series 2730 Hertz (Hz) Resonant Frequency and 9 Millimeter (mm) Diameter Transducer
Item # AT-1127-ST-2-R, AT Series 2730 Hertz (Hz) Resonant Frequency and 11 Millimeter (mm) Diameter Transducer
Item # AT-1220-TT-3V-2-R, AT Series 2000 Hertz (Hz) Resonant Frequency and 12 Millimeter (mm) Diameter Transducer
Item # AT-1220-TT-9-R, AT Series 2048 Hertz (Hz) Resonant Frequency and 12 Millimeter (mm) Diameter Transducer