SparkFun Frequency Counter Kit - KIT-10140 - SparkFun Electronics
Amazon.com: Ranjaner 1Hz-50MHz Frequency Counter Kit, DIY Module Board for Oscillator, Crystal Measure Frequency Meter Accessories : Industrial & Scientific
Frequency Counter( Mine Worked Up to 70MHz) Using PIC 16F628A (with Prototype PCB and Built in Crystal Oscillator) for HAM Shacks : 5 Steps - Instructables
CC275: Build a Signal Frequency Counter - Circuit Cellar
50 MHz Frequency Counter
/i/84713/products/2015-04-01T11%3A13%3A03.859Z-frequency_counter_diy_kit_ver-3.jpg?1606306133 "Frequency Counter DIY Kit w/LCD 10Hz-250MHz from RH Electronics on Tindie")
Frequency Counter DIY Kit w/LCD 10Hz-250MHz from RH Electronics on Tindie
PIC Frequency Counter
LCD frequency counter
Frequency Counter : Block Diagram, Circuit, Types and Its Applications
Strobe Frequency Counter – Arbor Scientific
CNT-90 - Pendulum Instruments
60MHz Frequency Meter / Counter using pic microcontroller
Frequency Counter for Analog 2 Way Radios – Rugged Radios
Amazon.com: Portable Handheld Frequency Counter 10Hz-2.6GHz IBQ102 for MOTORLA ICOM Kenwood : Electronics
S53MV Counter Main
Frequency counter - Wikipedia
FC-3000P Portable Frequency Counter/ Ctcss Meter — LATNEX
TF930 - Aim-tti Instruments - Frequency Counter, 0.001Hz to 3GHz, 10 Digits
Frequency counter with PIC16F628A - Electronics-Lab.com
Frequency Counter : Block Diagram, Circuit, Types and Its Applications
Frequency Counter With Variable Gate Time : 12 Steps (with Pictures) - Instructables
New PIC16F628A Frequency Counter Firmware with count-up mode - YouTube
S4382 Series Microwave Frequency Counter - SALUKI
