140-525 Analyzer (pictured) - Frequency Range 135-525 MHz. Measurements include: SWR Return Loss Field Strength FunctionAvailable as a stand-alone meter which operates on 8 AA batteries or as a 140-525 Analyzer Kit with Belt Case, AC Adapter, Analyst Director software and serial cablePart Number: 5006-5101Included items: Manual on CD-ROM, MaleN-to-SO239 Female Adapter, Quick Reference Card, Analyst Director Software, Serial Cable, Belt Case and AC Adapter.VIA Analyzer - Frequency Range 100 KHz-to-54 MHz. Measurements include: SWR Return Loss Impedance Resistance Calculated Band Width