| Specification | 
                 
                  | 080SR365 | 
                  Transceiver | 
                 
                  | Center Frequency | 
                  80.0±5.0 KHz | 
                 
                  | Bandwidth  Echo Sensitivity -6dB | 
                  4.5 KHz | 
                 
                  Echo Sensitivity  0dB re 20Vp-p @ 50 cm , 40 Bursts | 
                  -57 dB min. 28.25 mVp-p min. | 
                 
                  | Dead Zone 10 Bursts | 
                  35 cm | 
                 
                  | Capacitance at 1KHz ±20% | 
                  2800 pF | 
                 
                  Max.Driving Voltage Pulse 2% duty cycle tone burst | 
                  700 Vp-p | 
                 
                  | Total Beam Angle -3dB/-6dB | 
                  8.0°/11.0° typical | 
                 
                  | Matching Window | 
                  Silicone Rubber | 
                 
                  | Operation Temperature | 
                  -20℃ to 70℃ | 
                 
                  | Storage Temperature | 
                  -30℃ to 80℃ |