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“For Good Measure”®

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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

English, Afrikaans, Portuguese Speaking.                         Master/Visa Credit Cards

Satellite Antenna Portable Field Strength Meters

Field Strength Meters

Portable Field Strength Meter for HD.  6.5 inch LCD, HDMI and TS-ASI Connectivity. For use in Terrestrial, Satellite HD, Cable, Mobile and Analogue TV.


Promax Field Strength Meter TV Explorer HD Picture
Promax Field Strength Meter TV Explorer HD PicturePromax Field Strength Meter TV Explorer HD Picture

Portable Field Strength Meters for use with Top TV,  DSTV, Terrestrial, Satellite, Satellite HD, Cable, Mobile and Analogue TV, with Spectrum Analyser, having Auto reference level with reports and Auto Internet updates. Echoes detection, and Satellite IF test and much more …….

Please Note: This is not our complete range, so please contact us for further information on any product that you require, which is not seen on our site. You can call us on +27 (011) 683 4365 or email us by clicking here.

Part No:  Sathunter

Satellite Hunter for installation of Satellite reception systems. Displays Satellite ID , Orbital Position and Service List.



See also: Promax Electronics

Part No: Prodig-3

Entry level TV & SAT Level Meter& Analyser. Software self upgrade with PC. Datalogger, Auto search & signal identification, Spectrum  Analyser.


Promax Prodig-3 TV & SAT Level Meter & Analyser
Promax Prodig-3 TV & SAT Level Meter & AnalyserPromax Prodig-3 TV & SAT Level Meter & Analyser

Part No:  WS-6932

HD Satellite Finder Spectrum Analyser. DBV-S/DVB-2 fast  Software upgrade with USB2.0 port. Li-Ion Batt. Key smartLight, Built In Flash Light. Symbol rate to 45MSps.

WS-6902 Satelite Finder Spectrum Analyser
WS-6902 Satelite Finder Spectrum AnalyserWS-6902 Satelite FinderD-I-Y Field Strength Meter

This project is very useful for the radio frequency (rf) engineer and hobbyist, especially when the final rf transmission  has to adjusted . Setting up an antenna impedance matcher is one example. Here is the schematic diagram of this rf meter circuit:

D-I-Y Project

The circuit uses a single transistor (MPSA18) as the active component. The signal strength meter display uses an analog meter (1 mA full scale) . This rf field strength meter has no scale.  The important thing for this uncalibrated rf meter is that it can display the changes of an rf field when we calibrate the antenna or the matching network for the rf transmitter-antenna loading. If we are tuning the antenna size or the transmitter-antenna matcher filter, then just observe the analog meter to get maximum deflection.

Look at the transistor circuit, the base of the transistor is not biased by the voltage from the power supply. It is directly driven by the signal from the rectified received rf signal. It means that the circuit won’t draw any current from battery if there’s no received rf signal, so it doesn’t need a power switch to cut the power consumption of the supply (the battery), just make sure  to move it away from strong active rf transmitter when this device is not in use. [Circuit schematic diagram source: techlib.com]

Part No:  TM200-SH

Small Satellite Finder . 75 ohm. 950Mhz - 2150 Mhz. Input Level –65 to –25dBm. Preset Global Data. Programmable. LNB Short cct Protection. No Stock.


T + M®

Small Satellite FinderSmall Satellite FinderSmall Satellite FinderSmall Satellite Finder

Part No:  TM-WS6903

Satellite Finder with Digital Display for Alignment. Ideal for caravanning. Displays signal strength with audiotone. 4 gain settings.

R 850.00

 Excl VAT

TM-WS6903 Satellite Finder AlingnmentTM-WS6903 Satellite Finder AlingnmentTM-WS6903 Satellite Finder AlingnmentTM-WS6903 Satellite Finder Alingnment

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ws6932 satellite finder

Part No:  HD Ranger+

Portable TV & Satellite Analyser , Ultra Fast Spectrum Anayser. Covers DVB-T2/C2/S2 (DVB-T/C/S also included) with MPEG-2 as well as MPEG-4.


Promax TV Hunter
Promax TV HunterPromax HD Hunter+ Satellite analyser

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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

Clearance Sale:

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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T + M®                      




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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Also: Thermal Imagers

FLIR TG267 Thermal Imagng Spot Non Contact Thermometer