Keri Systems MS-3000X MicroStar Proximity Reader
Considered by many to be the smallest, most attractive proximity reader available, The MicroStar is designed to mount directly on a metal window/door frame (mullion) or any other location a small reader is required LED Indicator: Tri-Color Standard (Red, Green, Amber) Audio Tone Standard Frequency 125 KHz excitation, 62.5 KHz data return Color: Black