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| PartNumber | 254-EMB93-RO | 254-EMB91-RO | 254-EMB942-RO |
| Description | Audio Indicators & Alerts 9.0 x 4.0mm 2731Hz | Speakers & Transducers 9.0 x 4.0mm 2731Hz | Speakers & Transducers 9.0 x 4.0mm 2731Hz |
| Manufacturer | Kobitone | Kobitone | Kobitone |
| Product Category | Audio Indicators & Alerts | Speakers | Speakers |
| Product | Transducers | Transducers | - |
| Type | Electromagnetic | Electromagnetic | - |
| Packaging | Bulk | Bulk | - |
| Termination Style | Solder Pin | Solder Pin | - |
| Length | 10.5 mm | - | - |
| Width | 4 mm | 4 mm | - |
| Frequency | 2.731 kHz | 2.731 kHz | - |
| Sound Pressure Level | 85 dBA | 85 dBA | - |
| Diameter | 9 mm | 9 mm | - |
| Dimensions | 10.5 mm L x 4 mm W | 4 mm W | - |
| Length in | 0.413 in | - | - |
| Length mm | 10.5 mm | - | - |
| Width in | 0.157 in | 0.157 in | - |
| Width mm | 4 mm | 4 mm | - |
| Operating Temperature Range | - | - 20 C to + 70 C | - |
| Shape | - | Round | - |