Product Description:
The testo 557 digital manifold has a 4-way valve block, a large backlit display, and a sight glass. Two NTC thermistor clamp probes provide superior accuracy for simultaneous, real-time superheat and subcooling readings. An external vacuum probe provides fast and 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 documentation and send reports and invoice via email, right from the job site. In addition to the 60 refrigerant profiles stored in the instrument, the app can be used to download new refrigerants from the Internet, directly to the digital manifold.
Function:
Measures high side / low side pressures and temperatures
4-way valve block with 3/8 in. and 1/4 in. ports
External vacuum probe
App integration via Bluetooth (65-foot range)
Calculates and displays superheat and subcooling temperatures
Package List:
1xtesto 557 digital manifold,
2x NTC temperature clamp probes,
1xexternal vacuum probe,
1xbatteries,
1xcase,
1xcertificate of conformity,
1xuser's manual
Measure Information:
Temperature
Measuring range
-58° to 302 °F / -50 to +150 °C
Accuracy
±0.9 °F / ±0.5 °C
Resolution
0.1 °F / 0.1 °C
Probe connection
2 x Plug-in (NTC)
Pressure measurement
Measuring range
-14 to 870 psi / -1 to 60 bar
Accuracy
±0.5 % Fs
Resolution
0.10 psi / 0.01 bar
Probe connection
3 x 7/16" – UNF + 1 x 5/8'' – UNF
Overload rel. (high pressure)
943 psi / 65 bar
Vacuum
Measuring range
0 to 20000 micron (measurement)
Accuracy
± (10 micron + 10 % of mv) (100 to 1000 micron)
Resolution
1 micron (0 to 1000 micron)
10 micron (1000 to 2000 micron)
100 micron (2000 to 5000 micron)
500 micron (5000 to 10000 micron)
5000 micron (10000 to 20000 micron)
Logistics information
Our products are located in Hong Kong, China, and the logistics speed depends on your specific location. According to our experience, it usually takes about 15-20 days of transportation time
CONTACT US
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How to choose the correct size:
Step 1 Please measure your foot length carefully.
Step 2 Please choose the correct size according to your foot length and chinese size.
For example, If your foot length is 255 mm , you should choose the size 8.
