| PartNumber | ZA028SDMT2 | ZA028SDMT1 | ZA028SDMP1 |
| Description | Audio Indicators & Alerts | Audio Indicators & Alerts | Audio Indicators & Alerts 22MM, 16-28VDC, ROHS, STK |
| Manufacturer | Mallory Sonalert | Mallory Sonalert | Mallory Sonalert |
| Product Category | Audio Indicators & Alerts | Audio Indicators & Alerts | Audio Indicators & Alerts |
| RoHS | Y | Y | Y |
| Voltage Rating | 28 V | 28 V | 28 V |
| Current Rating | 40 mA | 40 mA | 40 mA |
| Termination Style | Terminal Block | Terminal Block | Terminal Block |
| IP Rating | - | - | - |
| Mounting | Panel | Panel | Panel |
| Series | ZA | ZA | ZA |
| Brand | Mallory Sonalert | Mallory Sonalert | Mallory Sonalert |
| Product Type | Audio Indicators & Alerts | Audio Indicators & Alerts | Audio Indicators & Alerts |
| Factory Pack Quantity | 1 | 1 | 1 |
| Subcategory | Audio Devices | Audio Devices | Audio Devices |
| Unit Weight | 1 oz | 1 oz | - |
| Product | - | - | Panel Alarms |
| Sound Pressure Level | - | - | 75 dBA |
| Tone | - | - | Pulse |
| Diameter | - | - | 30.7 mm |
| Application | - | - | Alarm |
| Features | - | - | With terminal block |