This external vacuum probe for the Testo 557 smart vacuum kit is designed to provide faster and more reliable evacuation measurements from 0 to 20,000 microns. This external vacuum probe features a secure connection and is suitable for use on all refrigeration systems and heat pumps.
The External Vacuum Probe for Testo 557 - 0638 1557 is an accessory that allows the Testo 557 digital manifold to measure vacuum more accurately and easily. It connects to the manifold and extends the range of the vacuum sensor, making it possible to measure vacuum levels up to 20,000 microns.
External vacuum probe for use with the testo 557 digital manifold (0563 1557).
Specifications
Vacuum
| Measuring range | 0 to 20000 micron |
| 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) |