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PLJ-091OLED-L1 Pen-Style Frequency Counter 200Hz-100MHz RF Frequency meter ±2.5ppm TCXO | OLED Display FOR Ham Radio Amplifier

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Description
Item Specifics
 

PLJ-091OLED-L1 Frequency Counter | Pen-Style Design | 200Hz-100MHz Range | ±2.5ppm TCXO | OLED Display

 

 

 

Before purchasing Please refer to the advertising work video


 

Product Overview

The PLJ-091OLED-L1 is a high-performance pen-style frequency counter featuring an OLED display. Compact and portable, it is designed for
precision frequency measurement applications such as testing crystal oscillator accuracy in microcontroller systems and evaluating
communication port timing reliability.


Key Features

  • Core Technology: Sanjian Studio SJ8K24P-T dedicated chip (100MHz capacity)

  • Premium Build: Acrylic housing + 0.91" blue OLED display

  • High-Precision Reference: KDS VC-TCXO (±2.5ppm stability)

  • Advanced Algorithm: Unique gate control with precision timing (non-interrupt driven)

  • Dual Gate Times: 0.1s/1.0s selectable (10Hz/1Hz resolution)

  • Smart Display Modes: MHz/kHz/Hz unit switching for optimal readability

  • Dual Input Methods: Signal probe needle or IPEX port (high sensitivity)

  • Type-C Powered: 5V operation with low current consumption

  • Auto Memory: Settings preserved after power cycle


Technical Specifications

Parameter

Value

Frequency Range

200 Hz – 100 MHz

Resolution

10 Hz (0.1s gate) / 1 Hz (1.0s gate)

Time Base Stability

±2.5 ppm

Input Impedance

High Z

Frequency Reference

3.000MHz VC-TCXO (KDS)

Operating Voltage

DC 4.5–5.5V (5V recommended)

Current Consumption

≈30mA @ 5V

Display

0.91" OLED (8-digit capacity)

Connectors

IPEX (RF IN), Type-C (Power)

Dimensions

138×18×11mm


Operation Guide

  • Gate Time Selection: Press button to toggle between 0.1s (faster refresh) and 1.0s (higher accuracy)

  • Unit Display: Cycle through MHz/kHz/Hz modes for best reading format

    • Note: Signals >100MHz show truncated display in MHz/kHz modes - use Hz mode for full resolution

  • Input Options:

    • Use needle probe for direct IC testing

    • Use IPEX port for cable connection


Applications

  • MCU crystal oscillator verification

  • Radio communication equipment testing

  • Frequency generator calibration

  • Educational electronics labs


Package Includes

  • PLJ-091OLED-L1 frequency counter


Description

Item Specifics

Description

 

PLJ-091OLED-L1 Frequency Counter | Pen-Style Design | 200Hz-100MHz Range | ±2.5ppm TCXO | OLED Display

 

 

 

Before purchasing Please refer to the advertising work video


 

Product Overview

The PLJ-091OLED-L1 is a high-performance pen-style frequency counter featuring an OLED display. Compact and portable, it is designed for
precision frequency measurement applications such as testing crystal oscillator accuracy in microcontroller systems and evaluating
communication port timing reliability.


Key Features

  • Core Technology: Sanjian Studio SJ8K24P-T dedicated chip (100MHz capacity)

  • Premium Build: Acrylic housing + 0.91" blue OLED display

  • High-Precision Reference: KDS VC-TCXO (±2.5ppm stability)

  • Advanced Algorithm: Unique gate control with precision timing (non-interrupt driven)

  • Dual Gate Times: 0.1s/1.0s selectable (10Hz/1Hz resolution)

  • Smart Display Modes: MHz/kHz/Hz unit switching for optimal readability

  • Dual Input Methods: Signal probe needle or IPEX port (high sensitivity)

  • Type-C Powered: 5V operation with low current consumption

  • Auto Memory: Settings preserved after power cycle


Technical Specifications

Parameter

Value

Frequency Range

200 Hz – 100 MHz

Resolution

10 Hz (0.1s gate) / 1 Hz (1.0s gate)

Time Base Stability

±2.5 ppm

Input Impedance

High Z

Frequency Reference

3.000MHz VC-TCXO (KDS)

Operating Voltage

DC 4.5–5.5V (5V recommended)

Current Consumption

≈30mA @ 5V

Display

0.91" OLED (8-digit capacity)

Connectors

IPEX (RF IN), Type-C (Power)

Dimensions

138×18×11mm


Operation Guide

  • Gate Time Selection: Press button to toggle between 0.1s (faster refresh) and 1.0s (higher accuracy)

  • Unit Display: Cycle through MHz/kHz/Hz modes for best reading format

    • Note: Signals >100MHz show truncated display in MHz/kHz modes - use Hz mode for full resolution

  • Input Options:

    • Use needle probe for direct IC testing

    • Use IPEX port for cable connection


Applications

  • MCU crystal oscillator verification

  • Radio communication equipment testing

  • Frequency generator calibration

  • Educational electronics labs


Package Includes

  • PLJ-091OLED-L1 frequency counter