C91 LUX/L - Length = 500 C91 LUX/H - Length = 400
| U | Frequency | Sound level [dB] | Symbol | Order No. |
|---|---|---|---|---|
| 12 V | High 390 Hz ± 5% | 117 | C91/1NLUX/12V H | TFK-51AT |
| 12 V | Low 340 Hz ± 5% | 117 | C91/1NLUX/12V L | TFK-52AT |
| 12 V | set H+L | 117 | C91/2LUX/12V | TFK-53AT |
| 24 V | High 390 Hz ± 5% | 117 | C91/1NLUX/24V H | TFK-54AT |
| 24 V | Low 340 Hz ± 5% | 117 | C91/1NLUX/24V L | TFK-55AT |
| 24 V | set H+L | 117 | C91/2LUX/24V | TFK-56AT |