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




Item Specifics
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




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