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Features
- Four Way Valve Block
- The Testo 557 comes with a 4-way valve block with 3/8" and 1/4" ports.
- External Vacuum Probe
- The included external vacuum probe allows the Testo 557 to provide more dependable evacuation measurements for deep micron readings.
- Absolute Pressure Measurement
- The Testo 557 can measure the vacuum, or absolute pressure, in microns. This allows for a much more accurate measurement.
- Integrated Bluetooth Compatibility
- Capable of generating reports, sending invoices and reports via email from up to 65 feet away, the Testo 557 allows you to conveniently complete your jobs. Connect six Smart Probes at distances up to 50 feet for all your testing needs.
- Smart and Efficient
- The Testo 557 immediately displays superheat and sub cooling a wide range of refrigerants. There are 60 refrigerant profiles stored on the tool and free refrigerant updates are available through the Testo Smart Probes app.
- Product Includes
- Two NTC Temperature Clamp Probes
- External Vacuum Probe
- Four AA Batteries
- Carrying Case
The Testo 557 Digital Refrigeration Manifold features a 4-valve digital manifold with 3/8-inch and 1/4-inch vacuum ports. The wireless Bluetooth app allows you to complete, document and invoice right from the job. This app also allows you to download new refrigerants from the Internet, in addition to the 60 profiles already stored in the tool.
Product Note
Requires iOS 7.1 or newer / Android 4.3 or newer / mobile end device with Bluetooth 4.0.
Specifications
0563-1557

General Information
Power Source
Four AA Batteries
UPC
4029547013409
Performance
Minimum Operating Temperature
-4 F
Maximum Operating Temperature
122 F
Minimum Measuring Temperature
-58 F
Maximum Measuring Temperature
302 F
Dimensions
Product Height
9 Inches
Product Width
5 Inches
Product Length
3 Inches
Product Weight
2.8 Pounds
Shipping Weight
1 Pound
Warranty Information
Warranty
Warranty
A warranty is a safeguard from defects in manufacturing and can vary in length and terms. To see the manufacturer's warranty statement, click on the Manuals tab. Learn More
2 Years
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Testo 557 Four Valve Digital Refrigeration Manifold and Gauge
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