Feature:1. PROFESSIONAL DESIGN: Frequency meter capable of measuring frequency parameters of walkie talkies with continuous carrier signals, with signal strength indicator. The tool of choice for maintenance personnel and for radio enthusiasts to test frequency and signal strength. Designed for counting continuous wave signals from two way radios.2. FREQUENCY: There are a number of simple ranges for you to choose from. These ranges cover most of the frequencies you want to measure for two way radio. The frequency range, 2MHz2800MHz. includes very interesting frequency regions such as 2m HAM radio, all VHF and UHF. dmr radio signal e frequency counter.3. EASY TO USE: Its four button controls are easy to use, and its small size allows you to take it anywhere you like. It operates with a TCXO (Temperature Compensated X'tal (crystal) Oscillator) and achieves an accuracy of 2 to 4 ppm over the range of 45C to 65C.4. PRACTICAL TOOL: The SF 103 Handheld Radio Frequency Counter is a more practical frequency meter, even including advanced features such as field strength measurements. Frequency counter for DMR and analog two way radio.5. LED COLOR DISPLAY, HIGH CAPACITY BATTERY: LED color display for easy viewing of frequency, RF signal, time of use, analog and digital, power level, and more. Built in high capacity 1500mAh rechargeable lithium battery for long battery life. It is a small, truly pocket sized test instrument designed for convenience and reliable performance.Specification:Item Type: Handheld Frequency CounterMaterial: ABSFrequency Range: 2MHz-2800MHzApplicable to: VHF UHF CTCSS DCS Decoder: SupportDMR Frequency Counter: SupportDigit Selection: Digit 0.000 or 0.0000 or 0.00000Work By TCXO (Crystal): SupportAuto Power Off: Auto Power Off 1-9 MinutesFrequency Response Time: 0.1,0.25,0.5,1.0S.Color Display: 240x320 Pixels, LCD Dimming Level SettingButtons: 4 Buttons for All Function Control2 Channel Selection: (A.27-2.8GHz, B.2MHz-200MHz)Battery: 1500mAh Lithium Battery (Included).Package List:1 x SF 103 Frequency Counter1 x Dual Frequency UHF VHF Antenna1 x Belt Clip2 x Screw1 x Charging Cable1 x Instruction Manual