Testo

4.6 Fact checked

Buy on Amazon

* We independently evaluate all recommended products and services. If you click on links we provide, we may receive compensation.

When purchasing a product, price is the consumer's primary concern. At present, Testo has 124 products for sale. Testo products range in price from $94 to $1389.76, and the average price of all the products is about $475.71. You should take everyting into consideration before buying the products, after all, it is not a small expenditure for most consumers.

We found that most of the Testo products are manufactured by Testo SE & Co. KGaA, Testo, Inc., and TESTO INC. The manufacturers provide Testo with a steady supply of products, and they have a good cooperative relationship with each other.

You can confidently purchase Testo products from the seller E-METER. The brand holds an average rating of 4.6, testifying to its excellent reputation.

Testo Best Sellers

Last Updated: Jan 9, 2026

Testo 558s AC Manifold Gauge Set – HVAC Manifold Gauge Set with 2X 115i Pipe-Clamp Thermometer, 1 x 552i Vacuum Probe and a Set of 4 Hoses – with 4-Way Valve, USB-C - Bluetooth and App-Connection

Industrial Pressure Gauges

Buy on Amazon Find on eBay

Versatile; The manifold gauge set offers extremely precise readings of temperature and pressure on air conditioning systems, refrigeration, as well as heat pumps

Precise; Achieve precise results with the Testo 558s manometer HVAC, featuring a superior pressure measuring accuracy of +/- 0.25% full scale for reliable, consistent readings in any HVAC application

Refrigerant Compatibility; Ensure maximum safety when working with flammable refrigerants. The Testo 558s ac gauge HVAC is fully compatible with A2L and A3 refrigerants, providing reliable and safe operation

Interactive Operation: Enjoy an interactive app interface with touchscreen and graphical data trends over 30 minutes. For full flexibility, switch to classic keypad operation or seamlessly integrate with the testo Smart App

Dual Power System; Your digital manometer is always ready to go with a dual power system consisting of batteries and a rechargeable USB-C battery, offering a battery life of up to 70 hours

Complete Set; The manifold set includes the testo 558s Manifold gauge 2x 115i Pipe-Clamp thermometer, 1 x 552i Vacuum Probe, a set of 4 hoses, as well as a sturdy hardcase

Read more Read less

Testo 605i | Thermohygrometer for Indoor Temperature and Humidity Measurement | with Bluetooth Support

Indoor Thermometers

Buy on Amazon Find on eBay

Efficient: The testo 605i is ideal for measurements in rooms, ducts, crawl spaces, registers and environmental boxes/chambers due to the compact probe head bendable to 90°

Smart: Enabling live data feed integration and automatic calculations which are conveniently displayed on your terminal device, the instrument is ideal for all HVAC/R technicians

Versatile: The testo 605i thermo-hygrometer measures relative air humidity and temperature in rooms and ducts and calculates dew point and wet bulb temperature automatically

Easy to use: The digital combometer allows accurate remote monitoring and is operated via mobile device. Supplied calibrated and with 3 AAA batteries for instant use

App for Android and iOS: The free testo Smart Probes App is a powerful tool that allows you to read and log measurements and create custom reports which can be saved and shared

Read more Read less

testo 550s AC Manifold Gauge Set – Manifold Gauges HVAC – Incl. 2 Wired Temperature Clamp Probes – Recharge Kit with Superheat, Subcooling For AC, Refrigeration & Heat Pumps – Bluetooth

Manometers

Buy on Amazon Find on eBay

Versatile; The testo AC manifold gauge set offers extremely precise readings of temperature and pressure on air conditioning systems, refrigeration, as well as heat pumps

Wide Range; With testo´s ac manifold, you can take advantage of the wide temperature measuring range of -58° to 302 °F / -50 to +150 °C and pressure measuring range of -15 to 870 psi / -1 to 60 bar

Precise; The ac recharge kit provides reliable data with a temperature accuracy +-0.9 °F / +-0.5 °C and pressure measurement accuracy of +-0.5 % of full-scale value

Probes; Obtain accurate measurements of temperature, pressure, or vacuum with the hvac manifold gauge set. The kit includes 2 wireless temperature probes and 1 wireless vacuum probe, making system analysis and optimization quick and easy

Features; The testo hvac gauges supports most common refrigerant types, as well as A2L refrigerants. Combined with the testo smart app, the gauge produces automatic calculations of superheat and subcooling

Smart App; Take advantage of clearly visualized documentation from a smartphone or tablet. Remotely operate your refrigerant gauges, execute service and maintenance tasks, and send results directly from the job site

Read more Read less

testo Smart Probe Kit I HVAC/R Gauge Set for air Conditioning, Refrigeration and Heating System I Includes testo 115i and 549i – with Bluetooth

Test Probes & Leads

Buy on Amazon Find on eBay

Efficient: The testo smart probe set offers precise measurements and calculations for heating and cooling systems, making it ideal for all HVAC/R contractors and technicians

Complete Set: Includes two testo 115i pipe-clamp thermometers and two testo 549i high pressure gauges, as well as a protective hard-shell case with precise-fit compartments

Testo 115i: With a grip of up to 1.5”, the wireless thermometer provides quick and reliable temperature and flow and return temperature measurements in pipes

Testo 549i: The pressure meter enables accurate readings for high and low pressure. The 45-degree connector simplifies servicing and troubleshooting – without the need for hoses

Smart App: The free testo Smart Probes App is a powerful tool that allows you to remotely read and log measurements and create custom reports which can be saved and shared

Read more Read less

Testo 0560 2549 03 549i High-Pressure Gauge 2nd Generation 45 Degree

Industrial Pressure Gauges

Buy on Amazon Find on eBay

Product Type:Electromechanical Gauge

Item Package Dimension:4.2 cm L X 10.1 cm W X 27.1 cm H

Item Package Weight:0.333 kg

Country Of Origin: China

Testo 557s AC Manifold Gauge Set – AC Recharge Kit with 2 x 115i Pipe Clamp Thermometer, 1 x 552i Micron Gauge - Set with Bluetooth

Vacuum Gauges

Buy on Amazon Find on eBay

VERSATILE; The vacuum gauge replaces multiple HVAC gauges and was developed to deliver extremely precise temperature, pressure, and vacuum measurements on refrigerant systems and heat pumps

USER-FRIENDLY; With its intuitive menu, 4-way valve block and automated probe connection, the manometer provides convenient pressure measurement in areas that are difficult to access

WIDE RANGE; The micron gauge offers reliable temperature measuring range of -58° to 302 °F / -50 to +150 °C, pressure measuring range of -15 to 870 psi / -1 to 60 bar, and vacuum measuring range of 0 to 20000 micron

PRECISE; Thanks to the sensitive sensors, the vacuum gauge provides temperature accuracy of +-0.9 °F / +-0.5 °C, pressure measurement accuracy +-0.5 % of full-scale value, and vacuum measurement accuracy +- (10 micron + 10 % of mv) (100 to 1000 micron)

SMART APP; Take advantage of clearly visualized documentation from a smartphone or tablet. Remotely operate your refrigerant gauge, execute service and maintenance tasks, and send results directly from the job site

Read more Read less

testo 405i – Anemometer handheld for air velocity, in-duct airflow, and temperature – CFM meter with Bluetooth and App operation

Anemometers

Buy on Amazon Find on eBay

RELIABLE; The hot wire anemometer accurately measures air velocity, temperature and in-duct airflow, as well as volume flow if the duct dimensions are provided

PRACTICAL; With its hinged, telescopic shaft that can be extended to up to 15", the wind meter can be used to measure airflow even in areas that are difficult to access

PORTABLE; The compact airflow meter is extremely lightweight and time-saving, making it suitable for personal and professional servicing of air conditioning or HVAC systems

WIRELESS; Equipped with Bluetooth 4.0, the wind speed meter can easily be connected to a smartphone or tablet and offers remote measurement readings

SMART; The Smart Probe App for testo gauges hvac provides convenient instrument readings as tables and graphs. All measured data can be stored, retrieved, or included in custom reports

Read more Read less

testo 558s Digital Manifold Gauge – AC Manifold Gauge HVAC for Long-Term Measurement on Air Conditioning, Heat Pumps – 4-Way Valve and USB-C – with Touchscreen, Bluetooth and App-Connection

Industrial Pressure Gauges

Buy on Amazon Find on eBay

Versatile; The manifold gauge set offers extremely precise readings of temperature and pressure on air conditioning systems, refrigeration, as well as heat pumps

Precise; Achieve precise results with the Testo 558s manometer HVAC, featuring a superior pressure measuring accuracy of +/- 0.25% full scale for reliable, consistent readings in any HVAC application

Dual Power System; Your digital manometer is always ready to go with a dual power system consisting of batteries and a rechargeable USB-C battery, offering a battery life of up to 70 hours

Read more Read less

testo 310 II Combustion Analyzer HVAC Set with Printer – Combustion Leak Tester for Temperature, Flue Gas & Pressure – Natural Gas Leak Detector with Smart App and Probe

Buy on Amazon Find on eBay

Efficient; Perfect for complex flue and exhaust gas analyses, the natural gas detector simplifies maintenance and safety checks on heating systems. The intuitive menu and smart app enable simultaneous measurements of key parameters

Wide Range; The combustion analyzer hvac measures temperature K TC and J TC , flue gas O2, flue gas draft, flue gas loss, efficiency, pressure, flue gas CO range without H2 compensation, as well as ambient CO

Accurate; Equipped with highly sensitive sensors, the testo 310 II gas leak detector ensures precise temperature and flue gas measurements. It delivers reliable accuracy across various ranges, providing dependable results for your analysis tasks

Easy Operation; The intuitive interface of the testo combustion leak tester, coupled with straightforward menus, allows professionals to perform flue gas analysis with ease, ensuring efficient and error-free diagnostics

Complete Set; The combustion analyzer comes with a rechargeable battery, calibration protocol for O2, CO, hPa & °C measurement, probe 180mm with cone, pressure silicon hose, 10 particle filters, sturdy case, 6 rolls thermal paper & bluetooth printer

Read more Read less

testo 550s AC Manifold Gauge Set – Manifold Gauges HVAC – Incl. 2x 115i Pipe Clamp, 1x 552i Micron Gauge, Set of 3 Hoses – Recharge Kit For AC, Refrigeration & Heat Pumps – Bluetooth

Industrial Pressure Gauges

Buy on Amazon Find on eBay

Versatile; The testo AC manifold gauge set offers extremely precise readings of temperature and pressure on air conditioning systems, refrigeration, as well as heat pumps

Precise; The ac recharge kit provides reliable data with a temperature accuracy +-0.9 °F / +-0.5 °C and pressure measurement accuracy of +-0.5 % of full-scale value

Read more Read less

Testo 552i App-Controlled Wireless Vacuum Probe I for HVAC Systems – with Bluetooth

Test Probes & Leads

Buy on Amazon Find on eBay

Accurate: The testo 552i achieves precise deep vacuum measurements down to single digit resolutions and provides notifications when the evacuation target is met

Easy-to-use: The device is equipped with a built-in 45° angle for convenient installation and rugged IP 54 certified housing, which makes it extraordinarily compact and reliable

Clever: For the purposes of wireless vacuum measurement, the testo 552i automatically connects to digital manifolds and can be used via just one service port and no loss of refrigerant

Efficient: The gauge identifies vacuum in a rapid and easy manner and can display data on the digital manifold screen and in the testo Smart App in real time

Smart App: Take advantage of clearly visualized documentation from a smartphone or tablet. Remotely operate service and maintenance tasks and send results directly from the job site

Read more Read less

Testo 0560 1510 510I Differential Pressure Manometer Smart and Wireless Probe, 1" Height, 1" Width, 6" Length

Manometers

Buy on Amazon Find on eBay

Differential pressure (manometer) measures static pressure, air flow, and volume flow (with pitot tube not incl.)

Measures manifold pressure and pressure drop across filters and coils and has measurement menu in app that includes pressure drop alarms

Easy configuration and calculations for volume flow (enter pitot tube factor and dimensions easily)

Magnetic back holds instrument for hands-free operation

Testo HVAC/R Complete KIT - Testo Smart Probe HVAC/R Complete Kit (0563 0007)

Test Probes & Leads

Buy on Amazon Find on eBay

Carry out all measurements in the areas of heating, air conditioning, refrigeration and ventilation with one kit

Testo 549i now includes 45° angled hose connections

Testo 605i now includes 90° foldable probe

Measurement data is transmitted to the convenient and powerful testo Smart Probes App in your smart device

HVAC softcase holds the complete set of smart probes

Testo 0560 1410 410I Vane Anemometer Smart and Wireless Probe, 1" Height, 2" Width, 6" Length

Anemometers

Buy on Amazon Find on eBay

Measures air velocity, volume flow, and temperature as well as air flow water registers and automatically calculates volume flow (enter duct dimensions simply)

Not air density correction required due to design

Measure volume flow water several outlets simultaneously (using multiple smart probes) to adjust system balance

Timed/multipoint averaging to get accurate air flow profiles

testo 115i Clamp Meter - Amp Clamp for Heating & Cooling Systems - HVAC Thermometer for in-Pipe Measurements & -58° to 302 °F Measurement Range - HVAC Temperature Probe with Bluetooth & App Operation

Lab Digital Thermometers

Buy on Amazon Find on eBay

Versatile; The testo 115i HVAC thermometer is a precise measuring instrument for heating and cooling systems and is thus ideal for all HVAC/R contractors and technicians

Easy handling; The HVAC temperature probe measures temperature in pipes quickly and reliably and makes it easier than ever to monitor real-time trending and data logs on any mobile device

State of the art; The clamp meter grips pipes up to 1.5" and derives fast, accurate readings thanks to its NTC temperature sensor technology which is more accurate than thermocouples

Time-saving; Its intuitive design with Bluetooth integration makes the ac temperature gauge an efficient tool. Data can be displayed and saved in PDF and Excel files, resulting in less paperwork

App Connection; Conveniently display graph history, and view, store, and document all measured values directly from your Bluetooth temperature probe on your Smartphone and Tablet

Read more Read less

Testo 0563 0002 Refrigeration Wireless Smart Probe Set

Temperature Probes & Sensors

Buy on Amazon Find on eBay

Measure high-side & low-side refrigerant pressure & temperatures (simultaneously) of ac/refrigeration systems

Low-loss ac/r system checks. Not hoses required

Complete and compact wireless ac/r test kits

Calculate superheat and sub cooling in the smart probe app

Compatibility : Requires iOS 8.3 (or later) / Android 4.3 (or later) and requires mobile device with Bluetooth 4.0

testo 550s AC Manifold Gauge Set – Manifold Gauges Hvac and Refrigeration – Incl. 2x testo 115i Pipe Clamp Thermometer, 1x testo 552i Micron Gauge Hvac - AC Recharge Kit with Bluetooth

Manometers

Buy on Amazon Find on eBay

Versatile; The testo AC manifold gauge set offers extremely precise readings of temperature and pressure on air conditioning systems, refrigeration, as well as heat pumps

Precise; The ac recharge kit provides reliable data with a temperature accuracy +-0.9 °F / +-0.5 °C and pressure measurement accuracy of +-0.5 % of full-scale value

Read more Read less

testo 510 Digital Manometer I Dual-Port Differential Pressure Meter for air Conditioning Systems and Ventilation ducts

Manometers

Buy on Amazon Find on eBay

Versatile: The testo 510 measures differential pressure, total external static pressure, manifold pressure and duct velocities, making it ideal for HVAC/R field servicing technicians

Precise measurements: Thanks to the temperature and air density compensated pressure sensor, the air pressure meter delivers accurate data for ten different measurement units

Always ready: The backlist display, in conjunction with its intuitive design and magnets on the back, allow for a convenient application of the compact digital pressure gauge

Durable: Equipped with a particularly rugged housing, including a protective cap and a battery life of 50 hours, the gas pressure meter offers a reliable performance

Easy operation: The compact, lightweight pressure measurement device comes with a belt pouch, two hoses and a wrist strap and thus can easily be taken to any job site

Read more Read less

Testo FAQs

Is Testo Legit?

Yes, Testo is a legitmate brand on Amazon. After conducting a comprehensive analysis of 3,633 customer reviews for Testo products on Amazon, we have determined its average rating. With a strong performance and good quality, Testo has received an average rating of 4.6 from numerous buyers, indicating that Testo are trustworthy and live up to their claims. Therefore, it is safe to make purchases from Testo on Amazon.

Amazon has strict policies and safety measures in place that ensure only legitimate sellers and products are allowed on their platform. It also provides a secure payment gateway and offers buyer protection, ensuring your transaction is safe. In the unlikely event that there's an issue with your purchase, Amazon's customer service and return policies are designed to protect your interests.

How to find more Testo products?

If you're interested in Testo and want to find more Testo products, you can follow the steps below:

Go back to FindThisBest's homepage.
Type Testo in the search box and hit Enter to see the search results.
Find and click the correct Testo to go to the new page.
Select the products you want in the Testo buying guide, and take a glance at the prices and features of the products.
View the products interest you on Amazon to read the customer reviews and check the ratings. Besides, you can hit the "brand" to find more Testo products.

How does findthisbest choose the top Testo products?

We analyze millions of Testo products reviews and customer reviews to recommend the best picks for most consumers. We have a professional team with decades of experience to test the products, which can help ensure that we provide our readers with accurate advice and best recommendations.

How can I purchase Testo products via FindThisBest?

Go to the Testo page.
Select the product you want in the Testo buying guide, and then view the product on Amazon. For example, if you are interested in the top 1 product Testo 558s AC Manifold Gauge Set – HVAC Manifold G..., you can view it on Amazon page.
Place your order on Amazon.

Who are the manufacturers of the Testo products?

Most of the Testo products are produced by Testo SE & Co. KGaA, Testo, Inc., and TESTO INC. The manufacturers provide Testo with a steady supply of products, and they have a good cooperative relationship with each other.

What is the purpose of your brand guide?

Our mission is to provide you with the most up-to-date and objective information about the Testo products, helping you make more informed buying decisions. We recommend best choices of the products from the Testo brand, helping you make better shopping choices with less time and energy.

Similar Brands