| PartNumber | PK-27N26PSQ | PK-27N25WQ | PK-27N26WQ |
| Description | Audio Indicators & Alerts CONSTANT, 3-28VDC 2.5KHZ, 90DB, 30X10 | Audio Indicators & Alerts CONSTANT, 3-28VDC 2.5KHZ, 90DB, 30X16 | Audio Indicators & Alerts CONSTANT, 3-28VDC 2.5KHZ, 90DB, 30X10 |
| Manufacturer | Mallory Sonalert | Mallory Sonalert | Mallory Sonalert |
| Product Category | Audio Indicators & Alerts | Audio Indicators & Alerts | Audio Indicators & Alerts |
| RoHS | Y | Y | Y |
| Product | Buzzers | Buzzers | Buzzers |
| Sound Pressure Level | 90 dBA | 90 dBA | 90 dBA |
| Tone | Continuous | Continuous | Continuous |
| Frequency | 2.5 kHz | 2.5 kHz | 2.5 kHz |
| Voltage Rating | 12 V | 12 V | 12 V |
| Current Rating | 15 mA | 8 mA | 15 mA |
| Termination Style | Solder Pin | Wire Leads | Wire Leads |
| IP Rating | - | - | - |
| Diameter | 30 mm | 30 mm | 30 mm |
| Dimensions | 30 mm L x 30 mm W x 10 mm H | 30 mm L x 30 mm W x 16 mm H | 30 mm L x 30 mm W x 10 mm H |
| Mounting | Flush | Flush | Flange |
| Height | 10 mm | 16 mm | 10 mm |
| Length | 30 mm | 30 mm | 30 mm |
| Packaging | Bulk | - | - |
| Series | PK | PK | PK |
| Width | 30 mm | 30 mm | 30 mm |
| Brand | Mallory Sonalert | Mallory Sonalert | Mallory Sonalert |
| Height in | 0.394 in | 0.63 in | 0.394 in |
| Height mm | 10 mm | 16 mm | 10 mm |
| 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 | 0.155205 oz | 0.232808 oz | 0.169315 oz |