SH-36S, 100 kHz - 3.6 GHz SignalHawk Spectrum Analyzer is the most user-friendly and accurate hand-held test solution available for installing, maintaining and troubleshooting all segments of RF communication systems. Field engineers, technicians, wireless equipment manufacturers, service providers, contractors, tower erectors and military field personnel alike have come to trust the efficiency and precision results of SignalHawk. Power Meter Option: compatible with Models 5010B, 5010T, 5011, 5011-EF, 5012B, 5016B, 5017B, 5018B, 5019B external power sensors. These sensors provide ñ 5% (ñ 0.2 dB) accuracy, with NIST Traceability.