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| Model | Description |
| YSB-1 | 4"square stainless steel siren box for YS-333 |
| YSB-2 | 5"square metal siren box for YS-55 |
| YSB-3 | 5"*8" square metal siren box for YS-85 |
| Model | Description |
| PSW-1 | 3mm pretravel with 7mm overall operating stoke 25"lead AWG #28(UL)wire |
| PSW-2 | 2 split phosphor Bronze Blades pretravel stroke of 8mm with 12mm overall operating stoke |
