| PartNumber | PK-27A25WQ | PK-27A29ERB481Q | PK-27A25PSQ |
| Description | Audio Indicators & Alerts CONSTANT, 3-24VDC 2.5KHZ, 95DB, 30X16 | Audio Indicators & Alerts 9-48VDC, Continuous Flange,200Hz 94dB | Audio Indicators & Alerts CONSTANT, 3-24VDC 2.5KHZ, 95DB, 30X16 |
| 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 | 95 dBA | 94 dBA | 95 dBA |
| Tone | Continuous | Continuous | Continuous |
| Frequency | 2.5 kHz | 2 kHz | 2.5 kHz |
| Voltage Rating | 12 V | 48 V | 12 V |
| Current Rating | 10 mA | 25 mA | 10 mA |
| Termination Style | Wire Leads | - | Solder Pin |
| IP Rating | - | - | - |
| Diameter | 30 mm | - | 30 mm |
| Dimensions | 30 mm L x 30 mm W x 16 mm H | 36 mm L x 36 mm W x 31 mm H | 30 mm L x 30 mm W x 16 mm H |
| Mounting | Flush | - | Flush |
| Height | 16 mm | 31 mm | 16 mm |
| Length | 30 mm | 36 mm | 30 mm |
| Series | PK | PK | PK |
| Width | 30 mm | 36 mm | 30 mm |
| Brand | Mallory Sonalert | Mallory Sonalert | Mallory Sonalert |
| Height in | 0.63 in | - | 0.63 in |
| Height mm | 16 mm | - | 16 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 | 0.239863 oz | 0.811301 oz | 0.232808 oz |
| Length in | - | 1.752 in | - |
| Length mm | - | 44.5 mm | - |