This portable frequency counter is designed for counting continuous wave signal comes from Two-way Radio. Its three-button control is easy to use and its small size allows you to carry it anywhere you like. <br><br><strong>Features:</strong> <br>Portable size￡? easy operation. <br>Large LCD 9-digit display￡? clear for quick reading. <br>Low power consumption￡? auto switch off and auto backlight. <br>Data hold function and 50 display readings saving function. <br>Menu setting￡? can view the saved data. <br>Low battery indicator and RF signal strength(50MHz-2.6GHz) indicator. <br>Equipped with UHF antenna and USB power adapter￡? convenient for use. <br><br><strong>Specifications:</strong> <br>Color: Black <br>Material: ABS <br>Frequency Range: 50MHz-2.6GHz / 10Hz-100MHz!#!amp!*!50MHz-2.6GHz (Optional) <br>Adapter Plug: EU Plug / US Plug (Optional) <br>Amplifier: 50MHz-2.6GHz: 50 ohm; 10Hz-100MHz: 1 Meg ohm <br>Impedance: 50MHz-2.6GHz: 50 ohm￡? VSWR!#!lt!*!2:1; 10Hz-100MHz: 1 Meg ohm￡? 30pF <br>Sensitivity: 50MHz-2.6GHz: !#!lt!*!5mV@100MHz/400MHz/1GHz; 10Hz-100MHz: !#!lt!*!30mV@10Hz-50MHz￡? !#!lt!*!35mV@50MHz-100MHz <br>Gate: 50MHz-2.6GHz: 0.1ms￡? 0.1s￡? 1s; 10Hz-100MHz: 0.01s￡? 0.1s￡? 1s <br>Time Base: 50MHz-2.6GHz: !#!lt!*!(+/-)30ppm; 10Hz-100MHz: !#!lt!*!(+/-)5ppm <br>LSD: 50MHz-2.6GHz: 100Hz/1s; 10Hz-100MHz: 1Hz/1s? <br>Battery: 3 * AAA Ni-MH Batteries (NOT Included) <br>Power: DC 5V 1A <br>ANT: UHF <br>Item Size: 85 * 55 * 24mm / 3.35 * 2.16 * 0.94in (H * D * W) <br>Item Weight: 70g / 2.47oz <br>Package Size: 17 * 11 * 4cm / 6.7 * 4.33 * 1.57in <br>Package Weight: 184g / 6.51oz <br><br><strong>Package List:</strong> <br>1 * Frequency Counter <br>1 * Antenna <br>1 * USB Cable <br>1 * AC Power Adapter <br>1 * User Manual (English)