|  | Alarms, Buzzers, and Sirens | 
| Sound Pressure Level | 73dB @ 3V, 30cm | 
| Online Catalog | MSR | 
| Height - Seated (Max) | 0.421" (10.70mm) | 
| Approvals | - | 
| Voltage - Rated | - | 
| Voltage Range | 3 ~ 20V | 
| Ratings | - | 
| 3D Model | MSR.igs MSR.stp MSR.sat | 
| Technology | Piezo | 
| Manufacturer | Mallory Sonalert Products Inc. | 
| Operating Mode | Single Tone | 
| Other Names | 458-1087 | 
| Operating Temperature | -40°C ~ 85°C | 
| Input Type | DC | 
| Datasheets | MSR320R MSR320R Performance Curves Piezo Indicators Part Numbering Guide | 
| Categories | Audio Products | 
| Duration | - | 
| Termination | PC Pins | 
| Current - Supply | 3 ~ 16mA | 
| Mounting Type | Through Hole | 
| Size / Dimension | 0.906" Dia (23.00mm) | 
| Standard Package | 1 | 
| Series | MSR | 
| Driver Circuitry | Indicator, Internally Driven | 
| Sound File | 3400 Hz Continuous | 
| Packaging | Bulk | 
| Part Status | Active | 
| Frequency | 3.5kHz | 
| Port Location | Top |