Mallory Sonalert SC628FR 压电常数，6-28VDC 2900HZ，软
ModelSC628FR
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Tone: Continuous
Width: 1.69 in
Height: 1.41 in
Length: 1.69 in
Diameter: 43 mm
Frequency: 2.9 kHz
Dimensions: 43 mm x 33 mm
Unit Weight: 42 g
Current Rating: 4 mA
Mounting Style: Panel Mount
Voltage Rating: 28 VDC
Termination Style: Screw
Sound Pressure Level: 72 dBA
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