Testo 0638 1557 External Vacuum Probe for Testo 557 Male Pressures auto calibrate at any

Pressures auto calibrate at any elevation

Weight:  13

It also features handle grips for comfort

making them a durable and long-lasting addition to your tool collection

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

Testo 0638 1557 External Vacuum Probe for Testo 557 Male Pressures auto calibrate at anyTesto 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)