Surecom SF-401 PLUS Portable Frequency Counter with TCXO Accuracy

Description

Product Overview

The Surecom SF-401 PLUS Portable Frequency Counter delivers precise measurement of continuous carrier signals from two‑way radios and walkie‑talkies. Housed in a rugged 7.2 x 1.92 x 4.88 in. case weighing just 3.2 oz, it features a temperature‑compensated crystal oscillator (TCXO) that maintains ±2 ppm accuracy from –45 °C to 65 °C. The device includes a built‑in lithium‑metal battery, four‑button control, and a clear signal‑strength indicator, providing reliable performance in demanding environments.

Usage

Designed for field technicians, radio hobbyists, and industrial engineers, the SF-401 PLUS excels in on‑site troubleshooting, frequency verification, and equipment calibration. Whether you are inspecting a fleet of walkie‑talkies, setting up a two‑way radio network, or conducting routine maintenance in a warehouse, the compact form factor lets you carry the meter anywhere. Its intuitive interface reduces training time, allowing quick readings even in low‑light or noisy conditions.

Why Choose Us

Surecom combines decades of expertise in industrial measurement tools with a focus on durability and accuracy. The SF-401 PLUS undergoes strict quality checks and is backed by a responsive support team ready to assist with calibration queries or warranty service. Our commitment to precision ensures the meter remains reliable throughout its lifespan, giving you confidence in every measurement.

Key Features

• High‑precision TCXO maintains ±2 ppm accuracy across a wide temperature range.
• Compact, lightweight design fits easily in a pocket or tool belt for true portability.
• Four‑button interface with clear LCD makes operation simple for users of any skill level.
• Integrated signal‑strength indicator provides instant visual feedback on carrier quality.
• Responsive customer support and warranty service ensure peace of mind after purchase.

FAQ

What frequency range does the SF-401 PLUS cover?

The meter is calibrated to measure the common frequency bands used by two‑way radios, typically from 100 kHz up to 1 GHz, covering most commercial walkie‑talkie applications.

Can the device operate in extreme temperatures?

Yes, the built‑in TCXO guarantees accurate readings from –45 °C to 65 °C, making it suitable for outdoor and industrial environments.

How long does the battery last?

The included lithium‑metal battery provides several weeks of intermittent use; a full charge cycle can extend up to a month depending on measurement frequency.

Is calibration required?

The SF-401 PLUS is factory‑calibrated and meets industry standards out of the box. Periodic verification is recommended for critical applications.

What warranty does Surecom offer?

Surecom provides a one‑year limited warranty covering manufacturing defects, with options for extended service plans.