LED Frequency Counter with Transparent Shell for Crystal Oscillator 1Hz–50MHz Measurement USB 9V Battery Powered Frequency Meter for Radio Transceivers and Electronics Projects

Engineered for precision and convenience, this LED frequency counter combines functionality with visual, making it an essential tool for electronics enthusiasts, ham radio operators, and DIY circuit builders. With a broad measurement range of 1Hz to 50MHz and voltage compatibility up to 30V, this frequency meter accurately captures data from common oscillators and radio circuits. Its automatic range conversion streamlines workflow—there’s no need for manual setting changes—while programmable polarity options allow fine-tuning for specific radio frequency needs. Designed with both performance and presentation in mind, the transparent casing not only protects the circuitry but adds a clean, tech-forward aesthetic to any workbench. Powered by USB, external source, or 9V battery, this frequency counter offers flexibility for portable use or static setups, making it the perfect companion for anyone needing reliable RF measurements with a modern, accessible design.Features:LED display, clear data display.Measurement frequency range: 1Hz~50MHz; signal frequency: up to 30V.Can measure the oscillation frequency of the most commonly used crystals.Automatic range conversion, no manual switching required.Programmable positive and negative frequency settings for measuring radio transceivers.Includes five accuracy resolutions and power saving mode.The display automatically turns off if there is no significant change within 15 seconds.Adopts a transparent shell to effectively protect components.Wide power supply, can be powered by USB/external power (5~12V)/9V batterySpecifications:Product name: DIY kit frequency meterMaterial: plastic, PCB boardColor: yellowSize: Single PCB board: 63*49*2mm/2.48*1.92*0.07 inchesAfter assembly: 73*58*17mm/2.87*2.28*0.66 inchesPackage Content:1*DIY kit frequency meter

• Clear measurement visibility: The LED frequency counter features a digital display for easy data reading even in dim workshop lighting or outdoor environments
• Versatile frequency measurement range: Accurately measures 1Hz to 50MHz and supports signal voltage up to 30V making this frequency meter suitable for oscillator testing and RF applications
• Hands-free auto range detection: No need to manually switch modes as this frequency tester automatically adjusts to input range letting you focus fully on fine-tuning circuits or transceivers
• Flexible functionality for radio work: Programmable positive and negative frequency settings provide tailored measurement support for amateur radio transceivers and electronic repair tasks
• Smart power design with aesthetic protection: Transparent shell offers component visibility and resistance while USB external power or 9V battery options stable field or bench operation