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1.Center frequency(KHz): 40±1.0KHz
2.Echo Sensitivity: =150mV
3.Decay Time: =1.2ms
4.Directivity (deg) X-axis: 120±15
5.Directivity (deg) Y-axis: 60±10
6.Capacitance (pF): 2000±20%
7.Allowable Maximum Input Voltage(Vp-p)
140(40KHz) Pulse width 0.5ms, interval 20ms
8.Mean Time To Failure: 50000h
9.Operating Temperature(?):-40~+80
10.Storage temperature(?): -40~+85
11. Hole diameter: 22mm