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Product Type: 40K Backup Sensor
Special Features：
Product Specification：
| Part Number | STC-40MB-C |
| Construction | water proof |
| Using Method | dual use |
| Frequency(KHz) | 40 ± 0.5 |
| Capcaitance (pF) | 2600 ± 20 % |
| S. P. L. (dB) | more than 103 |
| Sensitivity (dB) | more than -87 |
| Directivity (°) | 120° |
| Operating Temp. (℃) | -40 ~ 85 |
| Reverberation (ms) | ≦ 1.2 |