This unit offers: Synthesized tuning to 557 MHz, Measures horizontal sync suppression scrambled channels accurately, Reliable 4 position electronic attenuator & Switch selectable video/audio tuning.
Frequency: 50-557.875 MHz
Format: User selectable (dip switch) - Standard, HRC, IRC & Jerrold
Tuning Accuracy: +35 kHz all temperature ranges
Level Measurement Range: -35 to +60 dB
Tuning: 6 MHz (channel mode), 125 kHz (frequency mode)
IF Bandwidth: 280 +50 kHz at 3 dB point
Selectivity: Sufficient to distinguish 2 FM signals of equal amplitude 600 kHz apart. Sufficient to measure audio carrier in presence of upper channel video carrier 40 dB greater in amplitude.

Our unit has the attached cover (not in picture) and is in working condition, but is well used.
Battery not included.