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 Open Aperture Type
   High sound pressure, high sensitivity sensor with unimorph and redial cone construction. Open aperture is especially for air medium application.  Low reverberation type is also available for pulsed driving  Standard housing size : ¨ª 10, ¨ª 12, ¨ª 16, ¨ª 18, ¨ª24<mm>  Standard frequency : 25,32,40,50<KHz>  Application  Car alarm system, Packing aid sensor, Automatic door control, Liquid level measurement, Distance measurement, Traffic signal control 
 
 
  Drip Proof Type   Water drip proof, dust proof outdoor model. All the components are enclosed in metal housing Metal surface treatment is available for severe ambient condition.  Standard housing size : ¨ª 10, ¨ª 12, ¨ª 16, ¨ª 18<mm>  Standard frequency : 40<KHz>  Application  Car alarm system, Lighting control, Parking aid sensor, Automatic door control, Liquid level measurement, Distance measurement, Traffic signal Control               |  |