Waterproof type ultrasonic sensors

Features:

Water proof and dual use;
Compact and light weight;
High sensitivity and sound pressure;
Less power consumption;
*High reliability;

Electrical and Mechanical Characteristics:
Type: HPU1458FWAH09G, dia: 14mm, H: 9mm;
Using Method: Dual use;
Frequency: 58±1KHz;
S.P.L: >= 85dB (30cm/10Vrms);
Sensitivity: >= -90dB/V/µ bar;
Capacitance: 2000pF±25% at 1KHz;
Directivity: 110 x 50 degree;
Allowable input Voltage: 160 Vp-p;
Housing Material: Aluminum?