A Leading South African Test and Measurement Instruments Supplier

“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

TMI Tester

English, Afrikaans and Portuguese   Speaking

Master/Visa Credit Cards

Water meters

Water Meters

Part No:  YK-30WA               

Pure Water Tester, 0 to 1999 uS, with Data-Hold, & Large Display.

Lutron YK-30WA Water Meter


Lutron YK-30WA Water Meter
Lutron YK-30WA Water Meter

Part No:  PWA-301

Pure Water Meter : 0 - 1999uS, built-in Probe, Hold, Record (Min/Max). Ideal for Food Processing, school, Photography, Laboratory and Industry Quality Control.

Lutron PWA-301 Pen Type Pure Water meter


Lutron PWA-301 Pen Type Pure Water meter
Lutron PWA-301 Pen Type Pure Water meter

Notes on Water Quality Testing.

Water quality testing instruments are used to test water for chemical and biological agents, and to measure variables such as clarity and rate of movement. There are many different types of products. Interface level analyzers are designed to detect the level of an oil and water interface. By contrast, oil in water monitors are designed to measure the amount of oil in water. Potential of hydrogen (pH) instruments measure pH levels. Voltammetry water quality testing instruments vary electric potential while measuring the resultant current, which can be used to determine the chemistry of the conducting medium. Devices use either anodic stripping voltammetry or cathodic stripping voltammetry. Water quality testing instruments that measure conductivity, dissolved solids, suspended solids, turbidity, dissolved oxygen, dissolved carbon dioxide, biological oxygen demand (BOD), chlorophyll, and algal pigments are also available. 

Water quality testing instruments differ in terms of form factor or mounting style, user interface, and output options. Some devices are hand held, portable, or modular. Others are designed for laboratory, benchtop, in-situ, or field use. Panel-mounted water quality testing instruments are also commonly available. Like other types of products, they may include an analog meter, digital display, or video display; as well as manual controls, a digital panel, or computer interface. Output options for water quality testing instruments include analog voltages, analog currents, analog frequencies, and switches or alarm relays. An analog current or transmitter is recommended for applications that send signals over long distances. There are two main interface options for water quality testing instruments: serial and parallel. Serial devices use a standard serial communications protocol such as RS232, RS422, RS485 or universal serial bus (USB). Parallel devices use a standard parallel communications protocol such as general-purpose interface bus (GPIB).   

Features and functionality are additional considerations when selecting water quality testing instruments.  Some devices are temperature-compensated or provided some controller functionality. Others are battery-powered or include self-test features. Event-triggered water quality testing instruments can capture or log data only when a specific event occurs. Water quality testing instruments that are designed for extreme environments can withstand relatively high levels of temperature or humidity, and/or prevent the ingress of dust. Devices with special signal processing or filtering are also available.   

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

Copyright  © 2009—2018 Test and Measurement  Instruments C.C.   |  All rights reserved

Water Meters

T + M ®


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Lutron Instrument ElektroPhysik EZ Digital Fluke InstrumentT + M Yokogawa Instruments TMI InstrumentsSA Flag on TMI site
Promax Electronics

Clearance Sale:

Excess Stock to be cleared while stocks last. >   Click for More...

Flir Infrared Thermometry
Time Group High Time TechnologyLodestar Electronics Acute PC-Based Instruments from Test andMeasurement Instruments C.C.Intercomp "For any Measure"MSR ElectronicsSuperior Electric Powerstatk and h educationalT.M.I.T+M Products

T + M ®


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Part No:WA-2017SD

pH Multifunction Meter with ORP, Dissolved Oxygen, Conductivity, TDS and Salt Meter. Only one probe included: CD/ TDS/ Salt, Others probes are Optional.

Lutron WA-2017SD Combo pH, ORP,DO,TDS,Salt Meter


Lutron WA-2017SD Combo pH, ORP,DO,TDS,Salt Meter
Lutron WA-2017SD Combo pH, ORP,DO,TDS,Salt MeterLutron WA-2017SD Combo pH, ORP,DO,TDS,Salt MeterLutron WA-2017SD Combo pH, ORP,DO,TDS,Salt Meter
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Brand Names



Air Quality Meters

Alcohol Breath Tester

Alignment Equipment

AM & FM Signal Generators


Audio Generators

Audio Impedance Meter

Automotive testers



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

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

Dust Monitoring

Earth resistance meter

Educational Systems

Electrical Connectors

EMF tester

Eye Tracker

Field Strength Meters

Force gauge

Frequency Counter

Function Generators

GSM Controller

Gas leak detector

Green Hybrid Power

Grid Dip Meter

Hardness tester

HV(High Voltage) Testing

Humidity meter


Inductance Decade Box

Infrared Thermometers

Infrared Thermography


Insulation tester

LCR meter

Leakage Clamp Meters

Logic Analyser

Logic Probes/Pulsers

Lux meter, (Light meter)


Metal Detector


Microwave Leakage

Milliohm meter


Moisture meter


Night Vision Equipment

ORP meter


Oxygen Meters

Pattern generators

Panel meter

PC-Based Instruments

Pen type tester

pH Meters and Probes

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


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 Imagers



Thermography Courses

Thickness Testers

Tone Generator/ Tracer

Torque meter

Torque wrench

Transformer Testing

Transient Suppressors


TV & Satellite Meters

Turbidity Meter

Ultrasonic Flaw Detector

Ultrasonic Thickness

UV light meter

Vacuum meter

Variable Transformers

Verniers, Micrometers

Vibration meter

Video Scope

Watt meter

Water Tester

Water Testing Meters

Vacuum/Pressure meter

Voltmeters, Bench Type

Voltage Detectors

Voltage Regulators

5 Way® Binding Posts

Voltage Stabilisers

T + M®                      




Time Group


S.E.W. Standard Electric Works

MSR Electronics

Superior Electric


All brands, trade names, trade marks, and logos are the property of their respective owners.

30th anniversay of Test and Measurement Instruments c.c.

Ph:           +27 (011) 683 4365

Fax:          +27 (011) 683 4461

E-mail:     t.m.i@iafrica.com



NEW  Address:

(from 6 January 2016)

Physical   Address:              

3 Angelica Ave,

Glenvista, Johannesburg, 2091



Postal Address:

P.O. Box 1416,


Johannesburg, 2135,


TMI Monthly Specials

This Month’s Special

Thermography—Thermal Imager— Infrared Camera.

FLIR E5 (120 x 90 Pixels)


R 21,150.00 + VAT

while stocks last. 


FREE Thermography

Introductory Course

Included with Lunch.


One Day Course.

Click  Ex-Series  for Spec.

Also: Thermal Imagers

FLIR E4 Thermal Camera