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| PartNumber | ZA028LDDL1 | ZA028LDCT | ZA028LDCM1 |
| Description | Audio Indicators & Alerts 10 SEC DELAY 85-95 dB 16-28 V | Audio Indicators & Alerts 22MM, 16-28VDC, ROHS, STK | Audio Indicators & Alerts 16 to 28 VDC 3300 +/- 500 Hz |
| Manufacturer | Mallory Sonalert | Mallory Sonalert | - |
| Product Category | Audio Indicators & Alerts | Audio Indicators & Alerts | - |
| RoHS | Y | Y | - |
| Product | Audible Signal Devices | Audible Signal Devices | - |
| Sound Pressure Level | 95 dBA | 95 dBA | - |
| Tone | Continuous | Continuous | - |
| Voltage Rating | 28 V | 28 V | - |
| Current Rating | 40 mA | 40 mA | - |
| Termination Style | Terminal Block | Terminal Block | - |
| IP Rating | - | - | - |
| Diameter | 30.7 mm | 30.7 mm | - |
| Dimensions | 22 mm L x 22 mm W x 43.5 mm H | 22 mm L x 22 mm W x 43.5 mm H | - |
| Mounting | Panel | Panel | - |
| Height | 43.5 mm | 43.5 mm | - |
| Length | 22 mm | 22 mm | - |
| Packaging | Bulk | - | - |
| Series | ZA | ZA | - |
| Width | 22 mm | 22 mm | - |
| Brand | Mallory Sonalert | Mallory Sonalert | - |
| Length in | 2.232 in | 2.232 in | - |
| Length mm | 56.7 mm | 56.7 mm | - |
| Product Type | Audio Indicators & Alerts | Audio Indicators & Alerts | - |
| Factory Pack Quantity | 1 | 1 | - |
| Subcategory | Audio Devices | Audio Devices | - |
| Unit Weight | 1 oz | 1 oz | - |
| Frequency | - | 3.3 kHz | - |