DIY Frequency Meter Kit 1Hz-50MHz Crystal Oscillator Tester with LED Display, Programmable, Automatic Range

DIY Frequency Meter Kit 1Hz-50MHz Crystal Oscillator Tester with LED Display<br><br>This DIY kit measures frequency from 1Hz to 50MHz with an LED display for clear data reading. Signal input can handle up to 30V. It is designed to measure the oscillation frequency of commonly used crystals. Features automatic range conversion, so no manual switching is needed. Programmable positive and negative frequency settings allow for measuring radio transceivers.<br><br>Includes five accuracy resolutions and a power saving mode. The display automatically turns off if there is no obvious change within 15 seconds. A transparent shell protects the components while allowing visibility. Power options include USB, external power supply (5~12V), or a 9V battery.<br><br>Note: This is a DIY kit, not a finished product. Assembly is required. When installing components, please use anti-static gloves.<br><br>Specifications:<br>- Part name: DIY frequency tester kit (unassembled)<br>- Measurement frequency range: 1Hz~50MHz<br>- Signal input: Up to 30V<br>- Power supply: USB, external 5~12V, or 9V battery<br>- Color: Transparent<br>- Material: PCB + components<br><br>Package includes:<br>1 x DIY frequency tester kit (only the above items are included; other products not included)<br><br>Note: Colors may vary slightly due to lighting and display settings. Measurement error tolerance: +/- 1-3cm.