Frequency Counter 10Hz - 3GHz. 10-digit liquid crystal display, Hi-Z low range, Ultra-sensitive, synchronous detector - 16-section bargraph to show RF signal strength., High speed 300MHz direct counter with 0.1Hz resolution., Filter to prevent display of random noise., Automatic hold, LED back light, beeper., Four selectable gate speeds, Low power consumption (average 6 hour battery life)., Supplied with NiCd pack, AC wall charger, 7 section telescopic antenna., Low battery indicator.