Search  for anything...
Testo

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

    • Based on 297 reviews
Condition: New
Checking for product changes
$143.90 Why this price?
Save $65.10 was $209.00

Buy Now, Pay Later

As low as $23.98 / mo
  • – 6-month term
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout. Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Free shipping on this product

This item is eligible for return within 30 days of receipt

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

Availability: In Stock.
Fulfilled by Amazon
Arrives Friday, Jun 7
Order within 9 hours and 27 minutes
Available payment plans shown during checkout

Recently Viewed

Features

  • 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

Description

testo 552i – Accurate, app-controlled vacuum measurements The testo 552i Micron Gauge measures vacuum via just one service port and with no loss of refrigerant. Its handy, robust and clever design support HVAC technicians with numerous intelligent features like the graphic display of measurement data in the testo Smart App or on the manifold’s display. Its smart Bluetooth integration allows for data to be stored and evaluated reliably and efficiently, thus saving precious time and resources. testo 552i: Measuring range: 0 to 0.39 psi; 0 to 26.66 mbar; 0 to 20000 micron Accuracy: ±(10 micron + 10 % of mv) (100 to 1000 micron) Protection class: IP54 Resolution:1 micron (0 to 1000 micron) ; 10 micron (1000 to 2000 micron) ;100 micron (2000 to 5000 micron) Battery life: 39 hours Battery type: 3 x AAA micro batteries Connection: 7/16” UNF Measuring range: 0.5 sec Weight: 142 g Dimensions: 150 x 32 x 31 mm Operating temperature: -10 to +50 °C Storage temperature: -20 to +50 °C System requirements: requires iOS 11 or higher; requires Android 6 or higher; requires mobile end device with Bluetooth 4.0 Scope of delivery: ✓ 1 x testo 552i micron gauge ✓ Banderole, instruction manuals and calibration protocols ✓ 1 x Carton box packaging

Product Dimensions ‏ : ‎ 5.9 x 1.3 x 1.2 inches; 10.55 Ounces


Item model number ‏ : ‎ 552i


Batteries ‏ : ‎ 3 AAA batteries required. (included)


Date First Available ‏ : ‎ January 25, 2021


Manufacturer ‏ : ‎ Testo SE & Co. KGaA


Country of Origin ‏ : ‎ China


Best Sellers Rank: #52,664 in Industrial & Scientific (See Top 100 in Industrial & Scientific) #5 in Logic Analyzers


#5 in Logic Analyzers:


Customer Reviews: 4.6 4.6 out of 5 stars 297 ratings


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Jun 7

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Apple Pay Later
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • It's PERFECT. A DIY mini-split installers best find.
This German designed Testo vacuum probe is amazing and at half the cost of the ones with a digital LCD screen, this uses your iPhone or android as the readout. It works well for mini split vacuum monitoring, select "evacuation" from the long list of devices that app supports. And fire it up. Piece of cake. IMPORTANT.... Watch the triple evacuation video on Youtube from HVAC Tips guy ... I used his simple setup with two Appion Core removal tools. I did lose an hour wondering if the thing was working then I found and removed a "3rd" schrader valve, one was in the 5/8 Appion core removal tool, one in the 1/4" Appion core removal tool, in addition to the schrader inside the minisplit port. Once all three were gone, the vacuum sucked down fast and this gauge worked amazing. Was wondering if I should have bought CPS or another larger unit but paired with my iPhone over bluetooth it works great. VERY HAPPY with this gauge and price, it made the vacuum part of the DIY install go smooth. BTW, if you're wondering what a schrader valve is, it's the same little screw in tiny valve that holds air in your tires. It works one way. No mystery to that thing. Those Appion core removal tools worked great. ... show more
Reviewed in the United States on November 16, 2023 by Del Aney
    • Testo - A complete HVAC testing system
Review Image by Chris Chris
Review Image by Chris Chris
Review Image by Chris Chris
The Testo High Pressure Gauge and Vacuum Gauge are vital tools in an HVAC kit. I recently installed a mini-split that required you to evac the linesets before releasing the refrigerant. I had decided on the Testo platform and already had their Digital Manifold, as well as their wireless probes. I decided to get their vacuum probe to add into the ecosystem. These connect very easily to the system, though I do recommend using them alongside with a core removal tool so you can easily isolate and disconnect them. Actually, the setup I used was: HVAC Port to Core Removal Tool. Once you remove the core, I connected that online to the Vacuum Pump. On the access port on the core removal tool, I had another core depressor (not remover) and then connected the vacuum gauge to the core depressor. This way, You can evac the system to the vacuum pump, and shut off to isolate the system to an evac standing test. I pumped the system down to 200-300 microns, and let it stand for 15-20 minutes. If the system doesn't rise past 500 microns within 10 minutes, its considered a 'leak-free' system, and ready to release refrigerant. At this time, I closed off the core depressor valve, so that everything was 'off' and the released the refrigerant. This is recommended so that refrigerant doesnt get into the vacuum gauge. Though I'm sure it would be fine, I wanted to take the extra precaution. I'm very happy with the testo tools, and that you can save all the data to the App for future review. Since these don't need to be connected with hoses, if you dont want to, you are also potentially losing less refrigerant when using them (talking about the high side pressure gauges, not the vacuum gauge). ... show more
Reviewed in the United States on October 14, 2023 by Chris Chris
    • Works great
I've read the reviews before and was concerned about the gasket. I have all the other smart probes and haven't had any issue with them. Used the product today and it preformed exactly how I've always come to expect testo products. No issues, read out wad clear and precise.
Reviewed in the United States on November 17, 2023 by Michael Porelle
    • Easy to use and accurate, but no display without app.
This works great and the app is easy to use, but you have to use the app because there is no display of vacuum. Tested it against my BluVac Micro and they were virtually the same value.
Reviewed in the United States on November 19, 2023 by Terry H. Williams
    • Exelente
Muy bueno
Reviewed in the United States on September 10, 2023 by alberto pujols
    • It's weird
The media could not be loaded. I don't understand why tool info paper is not English
Reviewed in the United States on October 28, 2023 by amin
    • Looked used
Review Image by kendelle868 kendelle868
Review Image by kendelle868 kendelle868
For some reason the one I got seems used.
Reviewed in the United States on October 3, 2023 by kendelle868 kendelle868
    • Exelente
Excelente presicion
Reviewed in the United States on August 7, 2023 by Edward Peña

Can't find a product?

Find it on Amazon first, then paste the link below.