| PartNumber | PK-20A35EWQ | PK-20A35EW-24VQ | PK-20A38PQ |
| Description | Audio Indicators & Alerts CONSTANT, 3-24VDC 3.5KHZ, 95DB, 28X25 | Audio Indicators & Alerts Audible Alarm | Audio Indicators & Alerts CONSTANT, 3-24VDC 3.8KHZ, 95DB, 23X18 |
| Manufacturer | Mallory Sonalert | Mallory Sonalert | Mallory Sonalert |
| Product Category | Audio Indicators & Alerts | Audio Indicators & Alerts | Audio Indicators & Alerts |
| RoHS | Y | Y | Y |
| Product | Buzzers | Alarms | Buzzers |
| Sound Pressure Level | 95 dBA | 104 dBA | 95 dBA |
| Tone | Continuous | Continuous | Continuous |
| Frequency | 3.5 kHz | 3.5 kHz | 3.8 kHz |
| Voltage Rating | 12 V | 24 V | 12 V |
| Current Rating | 10 mA | 20 mA | 15 mA |
| Termination Style | Wire Leads | Solder Pin | Solder Pin |
| IP Rating | - | - | - |
| Diameter | 28 mm | 28 mm | 23 mm |
| Dimensions | 28 mm L x 28 mm W x 25 mm H | 28 mm L x 28 mm W x 25 mm H | 23 mm L x 23 mm W x 18 mm H |
| Mounting | Flush | Through Hole | Flush |
| Height | 25 mm | 25 mm | 18 mm |
| Length | 28 mm | 28 mm | 23 mm |
| Series | PK | PK | PK |
| Width | 28 mm | 28 mm | 23 mm |
| Brand | Mallory Sonalert | Mallory Sonalert | Mallory Sonalert |
| Height in | 0.984 in | 0.984 in | 0.709 in |
| Height mm | 25 mm | 25 mm | 18 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 | 0.310411 oz | 0.296301 oz | 0.169315 oz |
| Packaging | - | Bulk | - |