Surecom SF401 Plus Digital Frequency Counter with CTCSS/DCS Decoder for Ham Radio Transceivers - Ideal for Radio Monitoring, Signal Analysis & Amateur Radio Operations

Powerful signal strength indicator to measure walkie talkies' continuous carrier signal frequency for wireless enthusiasts Features: * CTCSS/DCS Decoder * LCD Dim level setting * Frequency digital 0.000 or 0.0000 * Work by TCXO(Temperature Compensate X'tal (crystal) Oscillator) 2～2.5ppm * Color Display 240x320 * Build-in Li-ion battery * Only four-button control means easy to use * Small size allows hand holding. * Auto power off 1-9minutes * Charging battery LED indicator Package Contents: 1x SF401 PLUS Frequency Counter 1x UHF Antenna 1x English User Manual 1x USB charger cable 1x USB AC adapter 100-240V Note: Steps of If Frequency Counter Cannot Check VHF Frequency 1) Swtich the ATT button into left hand side. 2) Then change the antenna into VHF or Dual band, as customer are using UHF antenna, but checking VHF band.