| APM-TEC | Type | Diameter (mm) | Height (mm) | Center frequency (Hz) | Min. Echo Sensitivity (mV) | Max. Decay time (ms) | Directivity (deg) | Function | Housing Material |
| APM-USW-1840TR | Waterproof | 18 | 12 | 40,000 ± 1,000 | 200 | 42795 | 80 ± 15 | Dual (T & R) | Aluminum |
APM-USW-1840TR – (18mm, 40kHz, Dual Transmitter/Receiver)
Ultrasonic Sensor, waterproof, 18mm, 40kHz, Dual Transmitter/Receiver.
