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 Testo 557 Bluetooth with 60" 3-Hose Pack

Testo 557 Bluetooth with 60" 3-Hose Pack

Part Number:557Hilmor
in stock
On Sale:$479.95
Your Savings:$94.05 (16%)

Testo 557 Bluetooth with 60" Hilmor Hose Pack

The Testo 557 digital manifold has a 4-way valve block, large backlit display and sight glass. Two NTC thermistor clamp probes provide superior accuracy of simultaneous, real-time superheat and sub-cooling readings. An external vacuum probe provides fast and more reliable evacuation of the system. The wireless Bluetooth / App allows you to view measurement data on your Smartphone or Tablet, enabling you to quickly and conveniently complete and document your job. Then, be able to finalize the documentation and send the reports and invoice via email, right from the job site. In addition to the 60 refrigerant profiles stored in the instrument, the App can also be used to download new refrigerants from the Internet directly into the digital manifold.


  • External vacuum probe for faster and more reliable evacuation of the system
  • Bluetooth / App integration for monitoring, report generation, and sending reports and invoices via email.
  • Accurate, simultaneous superheat / sub-cooling measurements
  • 60 refrigerant profiles stored in the instrument with additional that can be downloaded through the app.
  • Rugged housing with 5 year warranty with registration for reliable testing
  • Automatic superheat and sub-cooling calculations

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Customer Reviews

3 Stars
Improved battery life over previous Testo units i have owned and used in past. The only dissapointment is the design of the adjustment knob seals. They leak refrigerant under high R-410a pressures when checking in,heat pump mode. Once the pressures are lower it eventually seals again. A better design or different orings are needed for me to recommend this. Otherwise, the other features are good, the pressure calibration does not hold as long as the previous 523 model either. But there is a P=0 button that you can reset each time to recalibrate.
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Reviewed by:  from Ny. on 2/13/2017






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