SentryHound™ cell phone detection portal is a portable, perimeter security gate that is triggered when cell phones pass by its sensors. This type of installation is especially useful for security personnel looking to detect only cell phones without invasive and time-consuming searches. Since SentryHound is triggered by specific components found in mobile phones, time, money and resources normally spent using standard metal detectors are saved. This makes SentryHound the perfect compliment to teams securing concert halls, courtrooms, conference rooms, government secure facilities (SCIFs), and many more public and private areas from cell phones. SentryHound contains 6 independent, ultra-sensitive zones per pole to detect cell phones from head to toe but and even indicate approximate position and distance of the phone with glowing LED alerts and sirens. These LED zones "lock" onto any mobile phone hidden in a pocket, bag or purse. Setup and takedown of SentryHound is easy and its AC power (optional DC battery power available) allows it to run all day. Four levels of sensitivity and auto calibration ensure that SentryHound is always on the trail of hidden or contraband phones. SentryHound is designed and manufactured in the U.S.A.