Best Testo 550i Digital Manifold Deals of Nov 2026

Updated November 10, 2026Our site contains affiliate links for which we may be compensated.
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Testo

Testo 550i Kit I App Operated Digital Manifold, 2 x 605i Thermohygrometer and 2 x 115i Pipe Clamp Thermometer for air Conditioning, Refrigeration Systems and Heat Pumps – with Bluetooth

Dependable: The testo 550i with its rugged housing (IP54) block was specifically created for harsh environments, offering the reliability needed by HVACR technicians
User-friendly: With its compact design, 2-way valve block and automated probe connection, the HVAC meter provides convenient pressure measurement in difficult to access environments
605i Thermohygrometer: Equipped with a bendable probe head, the combometer achieves remote temperature and air humidity measurements in rooms, ducts, crawl spaces and registers
115i Thermometer: Thanks to a grip of up to 1.5”, the wireless pipe clamp thermometer provides quick and convenient temperature and flow and return temperature measurements of pipes
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
Details & specs
Check Price
on Amazon.com
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Testo

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

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
Details & specs
Check Price
on Amazon.com
Also available at
eBay See New
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Testo

Great Seller
100–250 sold/mo

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

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
Details & specs
Check Price
on Amazon.com
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Testo

testo 550s AC Manifold Gauge Set – Manifold Gauges HVAC and Refrigeration – Incl. 2X t115i Pipe Clamp Thermometer, 1x t552i Micron Gauge HVAC - AC Recharge Kit with Bluetooth

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
Details & specs
Check Price
on Amazon.com
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Testo

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

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, as well as a sturdy hardcase
Details & specs
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on Amazon.com
Also available at
eBay See New
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Testo

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

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
Details & specs
Check Price
on Amazon.com
Also available at
eBay See NewZoro See New
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Testo

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

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
Details & specs
Check Price
on Amazon.com
Also available at
Zoro See New
8
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Testo

30 Day Low Price

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

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
Details & specs
Check Price
on Amazon.com
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Testo

14% Off
Good Seller
100–250 sold/mo

testo 552i Wireless Digital Vacuum Probe - Vacuum Gauge for HVAC Systems with IP54 Protection – 45° Service-Port Design - HVAC Tool for AC/R System Evacuation with Bluetooth and App

Accurate: The testo 552i vacuum gauge delivers deep-vacuum measurements down to single-digit resolution with an accuracy of ±10 micron + 10% of mv (100-1000 micron). This gives you confidence that evacuation targets are reliably reached and verified
Easy-to-use: The micron gauge features an integrated 45° angle for quick, stress-free installation at any service port, while the robust IP54 housing ensures dependable operation even in demanding HVAC environments
Clever: For wireless vacuum measurement, the testo 552i vacuum gauge automatically connects to testo digital manifolds and operates via a single service port. Saving time, reducing setup complexity, and preventing refrigerant loss
Efficient: The hvac tool enables fast vacuum assessment and displays live measurement data directly on testo digital manifolds and in the testo Smart App, so you can make informed decisions without interrupting your workflow
Smart App: Use the Smart App to clearly document results on your smartphone or tablet, control service and maintenance tasks remotely, and send reports directly from the job site - saving time on documentation and follow-up
Details & specs
Check Price
on Amazon.com
Our #1 Pick Today
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Testo

Testo 550i Kit I App Operated Digital Manifold, 2 x 605i Thermohygrometer and 2 x 115i Pipe Clamp Thermometer for air Conditioning, Refrigeration Systems and Heat Pumps – with Bluetooth

Dependable: The testo 550i with its rugged housing (IP54) block was specifically created for harsh environments, offering the reliability needed by HVACR technicians
User-friendly: With its compact design, 2-way valve block and automated probe connection, the HVAC meter provides convenient pressure measurement in difficult to access environments
605i Thermohygrometer: Equipped with a bendable probe head, the combometer achieves remote temperature and air humidity measurements in rooms, ducts, crawl spaces and registers
115i Thermometer: Thanks to a grip of up to 1.5”, the wireless pipe clamp thermometer provides quick and convenient temperature and flow and return temperature measurements of pipes
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
Details & specs
Check Price
on Amazon.com
Disclaimer: While we make every effort to ensure accuracy, we cannot guarantee that all product specifications, pricing, discounts, and details are complete or error-free. Because information is subject to change, we recommend verifying all details directly with the retailer prior to making a purchase. As an Amazon Associate, we earn from qualifying purchases.

10 Testo 550i Digital Manifold deals are available from: Amazon, starting from $47.30.

The biggest discount we found is 14% on testo 552i Wireless Digital Vacuum Probe - Vacuum Gauge for HVAC Systems with IP54 Protection – 45° Service-Port Design - HVAC Tool for AC/R System Evacuation with Bluetooth and App (552i) at Amazon.

The lowest price we found is $47.30 while the highest is $1,005.47. Prices for the best Testo 550i Digital Manifold deals average at $582.82.