Product overview
Transmitter / receiver pair
A 40 kHz open-face family balancing output, sensitivity, and a broad 85° typical beam.
| Center frequency | 40.0 ±1.0 kHz |
|---|---|
| Bandwidth (-6 dB) | 2.0 kHz |
| Transmitting SPL | 115 dB min. |
| Receiving sensitivity | -67 dB min. |
| Capacitance at 1 kHz | 2400 pF ±20% |
| Maximum continuous drive | 20 Vrms |
| Beam angle (-6 dB) | 85° typical |
| Operating temperature | -30 to 70°C |
| Storage temperature | -40 to 80°C |
Listed models and configurations
- 400ST120 transmitter
- 400SR120 receiver
- 400ST/R12B black aluminum housing
Catalog source: Specifications are transcribed from the 50-page Advantage TMS / Pro-Wave website catalog reviewed July 28, 2026. Values are typically stated at 25°C unless noted. Always request the current controlled datasheet, drawing, and revision before design release or purchase.