Mallory Sonalert Products SCE028XA3PS1B Brand/series: Sonalert?® Capacitance @ Frequency: - Color: Black Color, Housing: Black Current Rating: 40mA Current, Rating: 40 mA Frequency: 2.9kHz Frequency, Oscillator: 2900 Hz ?± 500 Hz ID_COMPONENTS: 1692038 Lead Free Status / Rohs Status: RoHS Compliant part Material, Construction: 6??„6 Nylon Mode, Operating: Short Pulse Mounting Type: Panel Mount Operating Mode: Short Beep Operation: Short Pulse Primary Type: Alarm Series: Sonalert?® Size / Dimension: Circular - 42.85mm Dia x 35.85mm H Sound Level: 95 and above dBA Sound Pressure Level: 95dB ~ 105dB Standards: UL Recognized Temperature, Operating, Maximum: 65 ?°C Temperature, Operating, Minimum: -30 ?°C Termination: Terminal Block Tone: Pulse Type: Piezo Indicator, Internal Drive Voltage - Rated: 16 ~ 28VAC Voltage Range: 16 ~ 28VAC Voltage, Operating: 16-28 Voltage, Supply: 16-28 VDC