Frequency Counter

Frequency Counter for panel meters, lab test benches and calibration systems, with OEM/ODM customization, stable supply and export support.

Portable Frequency Counter SF401 Plus 27Mhz-3Ghz CTCSS CDCSS Tester for Digital and Analog Radio

$39.90 /pieces

Price varies depending on material, logo, quantity and customization requirements.

MOQ 5 pieces
Model NO. EI-1645
Service OEM / ODM
Quality You Can Trust
Flexible & Scalable Solutions
Customizable Product Options
Comprehensive Specifications
Your Reliable Business Partner

Introduction

Measuring Range27Mhz-3000MhzAccuracy Class± 2 ~ ± 4ppm
Voltage3.7VDisplay TypeAnalog And Digital
Dimensions70 x 30 x 90mm(2.76x1.18x3.54in)Operating Temperature0-50C
Frequency range27Mhz-3000MhzCTCSS/DCS DecoderYes
LCD Dim level settingYesWork by TCXO2-2.5ppm
Rresponse time0.2sColor DisplayYes
BatteryBuild-in Li-ion batteryNet Weight113g
Auto power off1-9minutesCharging battery LED indicatorYes

We are China Loong Electrical Instrument Co., Ltd., a professional manufacturer and supplier specializing in Electrical Instrument. We have brought together and coordinated resources across the Electrical Instrument supply chain, enabling us to maintain consistent product quality and establish long-term partnerships with clients worldwide.

Our mission is to provide high-quality products and reliable service. We are committed to offering the following advantages:

  • Stable production system ensuring consistent quality, dependable supply, and standardized manufacturing management;
  • Strict quality control covering material selection, processing, surface finishing, and final packaging;
  • Variety of products and specifications to meet diverse project requirements and application scenarios;
  • OEM & customization support based on drawings, samples, or specific technical requirements;
  • Flexible packaging solutions to ensure safe handling and transportation of products;
  • Continuous improvement in products and services to better support customers in different markets.

If you are interested in our products, please feel free to contact us. We look forward to establishing long-term and mutually beneficial cooperation with you.

Copyright © 2026 China Loong Electrical Instrument Co., Ltd. All rights reserved.
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Portable Frequency Counter SF401 Plus 27Mhz-3Ghz CTCSS CDCSS Tester for Digital and Analog Radio

SKU: EI-1645

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