Single and two tone sounders
| Manufacturer | BESTAR |
| Type of sound transducer | piezo signaller |
| Features | with built-in generator |
| Mounting | on panel |
| Leads | screw |
| Operating current | 20mA |
| Resonant frequency | 2.9kHz |
| Tolerance | ±500Hz |
| Capacitance measurement frequency | 500Hz |
| Body dimensions | Ø43mm |
| Symbol | Oper. volt. | Oper. volt. | Kind of sound | Sound level |
|---|---|---|---|---|
| [V DC] | [V AC] | |||
| BPT-380XAC24VDC | 24 | - | continuous | 95dB (d=0.3 m) |
| BPT-380XAP24VDC | 24 | - | pulsed | 95dB (d=0.3 m) |
| BPT-380XAP230VA | - | 230 | pulsed | 90dB (d=0.3 m) |
| BPT-380X-S | 12 | - | continuous, pulsed | 80dB (d=0.6 m) |
| BPT-380X-SA230V | - | 230 | continuous, pulsed | 90dB (d=0.3 m) |
