Licence # QEC25094ISO 9001-2015
The Testo 557 digital refrigeration gauge 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.
60 built in refrigerants
Measures high side / low side pressures and temperatures4-way valve block with 1/4 in. and 3/8 in. portsExternal vacuum probeApp integration via Bluetooth (65 feet range)
Testo 557 kit, digital manifold with Bluetooth / App; including 2 x NTC temperature clamp probes, external vacuum probe, batteries, case, certificate of conformity, and user's manual.
60 Built in refrigerants
External vacuum probe for faster and more reliable evacuation of the system
4-way valve block with 1/4 in. and 3/8 in. ports
On-site Reporting/ Monitoring Via Testo Refrigeration App