✔ Powerful signal strength indicator to measure walkie talkies' continuous carrier signal frequency for wireless enthusiasts.
✔ Designed for counting continuous wave signals from Two-way Radios.
✔ Easy ranges to choose from, covering almost all frequencies.
✔ Includes frequency areas such as 2m HAM radio, all VHF and UHF (Frequency range: 27MHz - 3000MHz).
✔ DMR radio signal frequency counter.
✔ Easy battery level indication.

Features:

CTCSS/DCS Decoder
LCD Dim level setting
Frequency digital display (0.000 or 0.0000)
Works by TCXO (Temperature Compensate X'tal (crystal) Oscillator) 2～2.5ppm
Color Display 240x320
Built-in Li-ion battery
Only four-button control for ease of use
Small size allows for easy hand-holding
Auto power off (set for 1-9 minutes)
Charging battery LED indicator

If Frequency Counter Cannot Check VHF Frequency:

Solutions:
1) Switch the ATT button to the left-hand side.
2) Change the antenna to VHF or Dual band, as customers might be using a UHF antenna while checking VHF band.

Package Contents:
- 1x SF401 PLUS Frequency Counter
- 1x UHF Antenna
- 1x English User Manual
- 1x USB Charger Cable
- 1x USB AC Adapter (100-240V)