| Type of sound transducer | piezo signaller |
| Features | with built-in generator |
| Leads | cables |
| Tolerance | ±500Hz |
| Symbol | BPT-23CXW-1 | BPT-2812XH14W | BPT-40X-1 | LPB4216SW1405-12 | LPB4216SW1003-TA-R |
|---|---|---|---|---|---|
| Manufacturer | BESTAR | BESTAR | BESTAR | Cre-sound Electronics | Cre-sound Electronics |
| Operating temperature [°C] | |||||
| - -20...60 | x | x | x | ||
| - -20...70 | x | x | |||
| Diameter [mm] | |||||
| - 22.7 | x | ||||
| - 31 | x | ||||
| - 41.5 | x | x | x | ||
| Height [mm] | 12.2 | 10 | 16 | 16 | 16 |
| Mount. holes pitch [mm] | |||||
| - 29.8 | x | ||||
| - 39 | x | ||||
| - 50 | x | x | x | ||
| Oper. volt. [V DC] | |||||
| - 3...20 | x | x | x | x | |
| - 3...24 | x | ||||
| Operating current [mA] | 8 | 12 | 12 | 12 | 12 |
| Res. freq. [kHz] | 3 | 2.8 | 2.8 | 2.8 | 2.8 |
| Sound level | |||||
| - 80dB (d=0.3 m) | x | ||||
| - 90dB (d=0.3 m) | x | ||||
| - 100dB (d=0.1 m) | x | x | x |