ultrasonic sensor long range sensor with good performance

ultrasonic sensor long range sensor with good performance They are  enclosed type ultrasonic sensor, Waterproof and anti-dust,They are suitable for outdoor using. Such as dirty and wet condition. But can’t use under water. They used for Remote control andpark system.    Specification  

Center frequency	40±1.0KHz
Echo Sensitivity	≥230mV
Decay Time	≤1.2ms
Directivity	70±15°
Capacitance	1800±15% pF
Input Voltage	≤140Vpp
Mean Time To Failure	50000h
Operating Temperature	-35~+80℃
Storage temperature	-35~+80℃

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