Welcome to Testo Limited


Testo Instruments - Test and Measurement Equipment


Testo have added to their extensive list of testing solutions with the launch of a brand new electrical measurement range, offering unique technology and exceptional user-friendliness. For more information please visit our Electrical Testing Homepage


About Testo

Testo instruments are widely used in the following sectors: HVAC-R: heating, ventilation, air conditioning and refrigeration. Process Industry: manufacturing industries, service companies and utilities. Food Sector: including food manufacture, transport, storage and retail. Thermal Imaging: for building surveys, maintenance, electrical inspections and production monitoring.

This website is designed to allow easy purchasing of testo products, whilst providing you with vital technical data, new products/promotions and support through our FAQ Forum. Testo instruments cover a range of measurement parameters including: Thermal Imaging, Temperature, Humidity, Velocity, Compressed Air Measurement, Gas analysis, RPM, Pressure, Light, pH, Sound and Instrument Service and Calibration.

Featured products

Testo 330i - Flue Gas Analyser

connects to your SmartPhone or tablet using testo 330i App via Bluetooth function, giving the user ability to create and compare measurement reports whilst on site. All sets include testo 330i flue gas analyser with longlife gas sensors and integrated draught and gas zeroing, 3 slots, rechargeable battery and calibration protocol.
£939.00 (ex VAT)

Testo 760 - Digital Multimeter

Digital Multimeter suitable for all important electrical measurements. Automatically detects measurement parameter.
£69.00 (ex VAT)

Testo 750 - Voltage Tester

Voltage tester with all round LED display
£35.00 (ex VAT)

Saveris 2 - WIFI data loggers

Saveris 2 cloud based data loggers. With Automatic SMS and email alerts. Easy access to reports wherever you are via mobile, tablet or PC. Customers who register in 2016 will also receive 1 years FREE 'advanced' cloud licensing, which includes a number of added extras
£89.00 (ex VAT)

Testo 270 - Cooking oil tester

Testo’s 270 allows you to determine within seconds whether cooking oil needs changing. This will not only make sure you're cooking with clean oil, but is also proven to save you money on cooking oil costs.
£299.00 (ex VAT)

Testo 550 - Digital Refrigeration Manifold (Bluetooth)

Digital refrigeration manifold, ideal for all measurement work on refrigeration systems and heat pumps. With Bluetooth capability users can now connect to our Brand New Testo Refrigeration App. Includes 2 x clamp probes, batteries case and calibration protocol. Non sight glass.
£229.00 (ex VAT)

Testo Smart Probes - Refrigeration Set

For servicing, commissioning and error detection on air conditioning and refrigeration systems. Consists of: 2x testo 115i, 2x testo 549i, testo Smart Case (refrigeration), batteries, calibration protocol.
£165.00 (ex VAT)

Testo 184T - Temperature Data Loggers

Testo 184 T Range - All-in-one Temperature Data Loggers. Single use data loggers (From 90 to 500 days battery life, based on average usage)
£29.90 (ex VAT)
In short IAQ is judged based on the number of contaminants within the atmosphere of a room or building. Various gases are bound to be present, sometimes in very small (and therefore harmless) amounts. Examples of this include ozone and carbon dioxide. Whilst when these gases are present in small amounts they are not dangerous, this can change if the building is subject to lacklustre ventilation...
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Multimeters are used for a variety of applications, whether it is measuring supply voltage inside an electric cabinet, on a rooftop, or within a heat pump. While there are a number of other ways a multimeter can provide crucial measurements, it is crucial all applications are taken into account to design the perfect instrument...
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As anyone who is in charge of a premises which stores food will know, every location is different. When it comes to monitoring conditions then, careful selection is essential to make certain you are using the correct equipment to match the specific requirements of your location. This type of precision is vital, as we’ve seen time and time again, when it comes to the cold chain one slip up can be incredibly costly...
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