JM-20F Handheld Radio Frequency RF Bug Detector with Bargraph Frequency Counter The JM20F provides the latest technology in RF bug detection. Price:  $379.00 ea. Sale Price:  $289.00 ea. Quantity      Sophisticated microprocessor circuitry makes sweeping for RF transmitters fast and efficient. Detects and displays 1MHz-3GHz. 6 full hours use on a single charge. JM-20F Bug Detector Features: "Rubber Duck" wide band antenna 10- digit liquid crystal display Ultra sensitive 16 section bar graph A microprocessor filter circuitry which prevents nuisance alarms from random RF "noise" Silent vibration alarm Battery low indicator Built in NiCad battery (includes recharger) The frequency range is from 1 MHz-3GHz with a battery life of 6 hours. Specifications: SIZE: 3.3 x 2.27 x 1.2 inches Includes owner's manual & AC adapter Price:  $379.00 ea. Buy It Now:  $289.00 ea. Quantity