10 Digits LCD 16 Section barographs to show RF signal strength 300MHz direct counter with 0.1Hz resolution. 4 Selectable gate speeds. Hold switch to lock display. Low battery indicators. Internal Rechargeable NiCd battery pack (Average 6 hour battery life). AC wall charger (AC Adapter 120VAC/9VDC or 220VAC/9VDC). 7 section telescopic antenna (AT-1). IMPORTANT: This unit only works with analog signals