Another tidbit of background on the manufacturer or this detector. Looks like ACG has some pretty significant connections and other applications...
hmmmmm...
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ACG-CIS is a division of ACG Security Group. The ACG Security Group of companies specialize in consumer, business and military application biometrics and related security products and services. ACG Security Group, is currently a private company focusing on biometric application sales through its subsidiaries. In addition, ACG Security Group provides consulting, design and manufacturing services and has a division specializing in counter-terrorism intelligence and operations.