Testo 0638 1557 External Vacuum Probe for Testo 557 Male It also features handle grips

It also features handle grips for comfort

Tool bag has a hard top that allows for stacking materials on top

Pressures auto calibrate at any elevation

Temperature: Range:  0°F to 140°F (-18°C to 60°C)

Testo 0638 1557 External Vacuum Probe for Testo 557 Male It also features handle gripsTesto 0638 1557 External Vacuum Probe for Testo 557 Designed to provide faster and more reliable evacuation measurements from 0 to 20,000 microns Features a secure connection, and is suitable for use on all refrigeration systems and heat pumps SPECIFICATIONS 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)