Mallory Sonalert Products Inc. Sales Outline Drawing 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 Wire Weight (Grams) Mounting - Panel Mounting - Flange Options PL-20A35EWQ Revision B Part # 3500 500 3 ~ 24 12 10 at Rated Voltage 95 at 30cm at Rated Voltage Slow Pulse 1.2 20% -20 ~ +70 -30 ~ +80 ABS 707 UL94HB plastic resin (Color: Black) 28 AWG 9.4 Use 20-22 mm hole. Use 33.5 mm spaced 1/8" max hole. For other options contact factory RoHS Compliant 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