1. Center frequency: 40ía1.0khz 2. Echo sensitivity: í²200mv 3. Decay time: ín1.2 ms 4. Directivity: x-axis 110ía15íp Y-axis 75ía10íp 5. Capacitance: 2000ía15%pf 6. Input voltage: ín140vp-p 40khz, pulse width 0.5ms, interval 20ms 7. Mean time to failure : 50000h 8. Operating temperature: -40í½+80íµ 9. Storage temperature: -40í½+85íµ
