Specifications: Construction: open structure Using method: transmitter/receiver Center frequency: 23 +/- 1.0khz Sound pressure level: 115 db min. Sensitivity: -67 db min. Capacitance: 2500pf +/- 20% at 1khz Allowable input voltage: 80 vp-p Directivity: 50 +/- 15 degree Detectable range: 0.2 ~ 15m Resolution: 10mm Housing material: aluminum Carton lined with foam tray
