Combines smart phone, telecom test functions like ADSL tester, optical power meter, VFL and Bar code scan, GPS location. I. ... industrial smart phone, telecom test functions like ADSL tester, optical power meter, VFL and Bar code scan, GPS location to one. ... . Powerful functions: Smart phone for mobile Office + xDSL Test + Optical Power Meter + VFL + Bar Code Scan + GPS Location Reliable and durable: ...