Testo was founded in Lenzkirch, in the Black Forest region of Germany, in 1957 and has since designed, developed, and manufactured portable test and measurement instrumentation and solutions. Backed by 60 years of measuring engineering experience, testo's mission is to provide the highest quality, service, and value in the industry.
Testo's first product manufactured was a simple electronic thermometer. Today, the product line has expanded to include a large variety of temperature measuring instruments, such as data loggers, air velocity meters, humidity and dew point meters, refrigeration service analyzers, multifunction instruments, stack gas analyzers and air emission monitors, water analyzers, tachometers, sound, pressure, and light meters, and thermal imagers.
The testo 552i vacuum probe automatically connects to the digital manifolds testo 550s and testo 557s via Bluetooth. It is perfect for quick vacuum measurement thanks to the option of measuring vacuum wirelessly and via just one service port. Thanks to the testo Smart App, you can take and view measurements from afar using a mobile device like a tablet or smartphone.
The testo 552i is equipped with a particularly rugged housing (protection class IP54) and an integrated 45° angle for easy installation. It allows you to measure vacuum via just one service port and with no loss of refrigerant, thus enabling convenient servicing and maintenance of all HVAC systems.
Thanks to Bluetooth connectivity and the testo Smart App integration, HVAC/R technicians can control and view all measurements made with the testo 552i on the digital manifold screen or remotely via App. Thanks to its proven quality and great durability, you can rely on your wireless vacuum probe in any conditions.
The testo 552i can be used with the testo 557s (and 550s) Digital Manifolds, thus making it the perfect addition to the testo Smart Probes portfolio. The tool connects to the respective manifold automatically. Optional probes and accessories are available separately.
Control your instrument remotely and navigate through all measurement data via Smartphone or Tablet. Quickly and conveniently document your job, finalize your report and send it out via email - directly from the job site.
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
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