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Product List


Test and Measurement Instruments C.C.

          CK 1985/007464/23

“Tomorrow’s Instruments Today”  —  “For Good Measure” ®

TMI, Established—1982

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Frequency Counters

Frequency Counters

Part No:  FC3000

0.1Hz to 3 GHz (Option 3 : 5Ghz) Period, Total, RPM, Data-Hold, RS22C, GPIB Interface,

E Z Digital

EZ Digital FC3000 3 Ghz Frequency Counter with RS232EZ Digital FC3000 3 Ghz Frequency Counter with RS232EZ Digital FC3000 3 Ghz Frequency Counter with RS232

Part No:FC7000Series

0.1Hz to 1.5 GHz (Option 3 : 5Ghz) Period, Total, RPM,  Peak Voltage, Auto trigger, RS22. Trigger level Adjustment.

E Z Digital

EZ Digital 1.5 Ghz Frequency CounterEZ Digital 1.5 Ghz Frequency CounterEZ Digital 1.5 Ghz Frequency Counter

Notes on Frequency Counters.

Frequency counters are used for accurate measurement of frequency and display of sine, square wave and pulse input signals. There are several types of frequency counters which differ in frequency ranges and the number of digits that can be displayed. A digital counter represents the count in digital form. A frequency counter is an electronic instrument used to measure frequency and time. Digital counters are the integrated circuits which are used to count the events in the digital systems or computers. Digital frequency meters display the accurate frequencies that are generated by the signal generators. Frequency counter kits are the circuits that are mounted on a printed circuit board (PCB). Frequency counter kits are used in digital dabbling, transmitter and receiver circuits. Meter counters can count up and down and can also store data with a powerless non- volatile data backup. Pulse counters are used to count people entering a particular place, or can be used for time measurement. Frequency counters are used for wide range of frequency and time measurements and display 10 to 12 digits accuracy frequency measurement.

Frequency counters are designed to work on a wide range of radio frequencies. If the frequencies are very high, the frequency counter uses a high speed prescaler that reduces its frequency to operate digital circuitry. Digital counters consists of memory, which can be used to remember the previous states. Digital counters also consists of flip flops. The number of flip flops indicates the number of states it has. Digital counters are classified as synchronous and asynchronous counters depending on the type of clock it uses. Synchronous counters receive one clock simultaneously for all of the flip flops while in asynchronous counters a clock is given to successive flip flops from the output of previous flip-flops. A digital frequency meter operates in the frequency range of 15Hz to 8MHz that is sufficient to troubleshoot digital circuits and it is inexpensive. Digital frequency meters are controlled by a crystal so the calibration is not required. A digital frequency meter is powered by the 9V alkaline battery and provides a display of 4 digit accuracy. Specifications of a frequency counter kit are: dimension of PCB is 4 inch x 2.93 inch, input conditioning amplifier is sensitive to 50mV, it provides input accuracy of ±1Hz. A meter counter can be used in an air conditioning system to find out the number of hours the air conditioner was on and can also be used to show the number of times it was switched off in between. A meter counter can also be used to measure the depth of sea by inserting it inside the sea water. A pulse counter has eight input signals that can count both the falling and the rising edges. Pulse counters mainly consist of a pulse source, which is an electrical device that counts, stores that prepares the result, and a converter that converts electrical state and provide optical display. Frequency counters use a pulse counter to count edges on each channel up to four billion.

Frequency counters operate on the principle of gating input frequency into the counter for a predetermined time. A digital frequency meter finds wide applications in industries like to provide high degree of accuracy with RF signals. They can also use digital frequency meters for monitoring level of vibration in heavy equipment. Frequency counters are also used to calibrate other equipment that does not have displays such as a signal generator.

Test and Measurement Instruments C.C.T+M Instruments

Copyright  © 2009—2022 Test and Measurement  Instruments C.C.   |  All rights reserved

Frequency Counters

Part No:  FC-2500A

10Hz to 2.6GHz (3 Ranges) Frequency Counter, Period, Relative, Pocket Size. Datahold, Relative, Min/Max/Ave Recording, Battery operation.

Lutron FC-2500A 2.7Ghz Frequency Counter


Lutron FC-2700 2.7Ghz Frequency Counter
Lutron FC-2500A Frequency Counter

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R&S®  HM8123 Programmable Counter. DC to 3GHz. Input Impedance: 50Ω or 1 MΩ. Sensitivity 25 / 30 mV. 10 Digit Resolution. 9 Measurement Functions. Ext. Gate

Rohde and Schwarz, Hameg HM8123 Programmable Counter R&S®

Rohde & Schwarz

Rohde and Schwarz, Hameg HM8123 Programmable Counter R&S®Rohde and Schwarz, Hameg HM8123 Programmable Counter R&S®Rohde and Schwarz, Hameg HM8123 Programmable Counter R&S®T+M Instruments Lutron InstrumentEZ Digital Fluke Instrument Time Group High Time TechnologyFlir Infrared ThermometryITC Training Centre Thermography CoursesElektroPhysik
Promax Electronics Lodestar Electronics Acute PC-Based Instruments from Test andMeasurement Instruments C.C.Intercomp "For any Measure"MSR Electronics Superior Electric PowerstatK and H EducationalSEW InstrumentsRishabh LogoDanatronics LogoYokogawa Instruments T+M VERYTEK range of test and meaurement instrumentsRohde and ShwarzTMI PagerankMegger Test Instruments and Equipment, Megger South Africa, Megger SA.Extech Test and Measuring InstrumentsHurleyIR Military Night Thermal Cameras and GimbalsIntoximeters Breath Alcohol Testers

Brand Names



Air Quality Meters

Alcohol Breath Tester

Alignment Equipment

AM & FM Signal Generators


Appliance Testers

Audio Generators

Audio Impedance Meter


Automotive testers



Batteries for Equipment

Battery Analyser /

Battery Desulphator Charger

Bench DMM’s


Bread Boards

Breath  Alcohol Tester

Cable Fault Locators

Cable Height Meter

Cable Testers


Capacitance meters

Carbon Dioxide meters

Carbon Monoxide meters

Car Testers

Caster / Camber Gauges

Chlorine Meter

Clamp meters

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Colour Analysers

Combination Combo Meters

Concrete Testing

Conductivity  / TDS meters

Contact Tachometers

Continuity Tester

Controller / Monitors

Corner Weight Scales

Coronavirus COVID-19

Current Meters, Bench Type

Data Acquisition Systems

Data Loggers

Decade Boxes

Dew Point Meters

Digital Vernier Calipers

Digital Scales

Digital Multimeters , DMMs

Dissolved Oxygen Meters

Distance Meters

Drain Pipe Camera

Drug Testing

Dust Monitoring

Earth resistance meter

Earth Leakage Tester, ELCB

Educational Systems

Electrical Connectors

Electromagnetic Field Testers

Electrostatic Field Tester

EMF tester

Explosives Testing

Eye Tracker

Field Strength Meters

Force gauge

Frequency Counter

Function Generators

GSM Controller

Gas leak detector

Green Hybrid Power

Grid Dip Meter

Hardness tester

Helicopter IR Gimbals

HV(High Voltage) Testing

Humidity meter


Inductance Decade Box

Infrared Thermometers

Infrared Thermography


Insulation tester

Laser Levelling

LCR meter

Leakage Clamp Meters

Logic Analyser

Logic Probes/Pulsers

Lux meter, (Light meter)


Metal Detector


Micro-Ohm Meters

Microwave Leakage

Milliohm meter


Moisture meter


Night Vision Equipment

Optical Gas Imaging OGI Thermal Cameras

ORP meter


Oxygen Meters

Pattern generators

Panel meter

PC-Based Instruments

Pen type tester

pH Meters and Probes

Pipe Inspection Camera

Photo Tachometer

Power analyzer

Power clamp meter

Power Supplies

Pressure/Vacuum meter

3 Phase Rotation Tester

Pressure Transducer

Probes, Oscilloscope

Protection Relay Testing

Proximity sensor

Racing Equipment

RCCB tester

RCD, RCCB Testers

Radiation Testers


Renewable Energy

RF Generators

Resistance Decade Box

Roughness tester


Salt meter

Satellite Testing Equipment


Scales, Digital

Shore Hardness Tester


Soil Moisture Meters

Soil pH meter

Solar Power Meter


Sound level meter

Spectrum Analyser


Student Bench Meters

Stun Guns

SWR / RF Power Meters


TDS / Conductivity Meters

Test Leads

Thermal Cameras– Long Distance –20Kms

Thermal Imagers



Thermography Courses

Thickness Testers

Tone Generator/ Tracer

Tools - Hydraulic Crimp

Torque meter

Torque wrench

Transformer Testing

Transient Suppressors


TV & Satellite Meters

Turbidity Meter

Ultrasonic Flaw Detector

Ultrasonic Thickness

UV Corona & IR Cameras, Combined

UV light meter

Vacuum meter

Variable Transformers

Verniers, Micrometers

Vibration meter

Video Scope

Watt meter

Water Tester

Water Testing Meters

Weather Station

Vacuum/Pressure meter

Voltmeters, Bench Type

Voltage Detectors

Voltage Regulators

5 Way® Binding Posts

Voltage Stabilisers

XRF Analysers

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Time Group




Superior Electric


S.E.W. Standard Electric Works

Ph:   +27 (011) 683 4365 / 6 / 7

E-mail: sales@instrumentsgroup.co.za






Physical   Address:              

3 Angelica Ave,

Glenvista, Johannesburg, 2091



Postal Address:

As Above.

011 683 4365
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