Mallory Sonalert Products Inc. Sales Outline Drawing Part # MCP320 Revision A Specifications: Resonant Frequency (Hz) Operating Voltage (Vdc) Rated Voltage (Vdc) Current Consumption Max. (mA) Sound Pressure Level Min. (dB) Tone/Pulse Rate (Hz) Operating Temperature (°C) Storage Temperature (°C) Housing Leading Pin Weight (Grams) Options 3150 ±500 3 ~ 20 12 20 at Rated Voltage 55 at 2 Feet at 3 Vdc 74 at 2 feet at 20 VDC Constant -20 ~ +85 -30 ~ +130 PC UL-94V2 UL94HB plastic resin (Color: Black) Tin Plated Brass 10 For other options contact factory Dimensions: (units: mm) 4411 South High School Road, Indianapolis, Indiana 46241 USA ● Phone (317) 612-1000 ● Fax (317) 612-1010 ● http://www.mallory-sonalert.com