Nominal Frequency                    (kHz)                                   

40/48/58±1

Capacitance                               (pf )

2000±15%

Ring Down Time                         (ms )

     ≤1.2

Sound Pressure Level               (dB )

   105±5

Sensitivity                                 (dB )

    -70±5

Resistance                                (Ω )     

       500

Directivity                                  (° )

     90±5

Max. Input Voltage                    (Vp-p)

       150

Operating Temp. Range            (^oC)

   -30~+80

Storage Temp.                          (^oC)

   -40~+85

Weight                                      (g)

       2.9