Four Readings, One Operating Condition: Choosing a Digital Manifold Gauge

Capture low/high pressure and both line temperatures under one stabilized operating condition before interpreting the system.

Capture low/high pressure and both line temperatures under one stabilized operating condition before interpreting the system.

A step-by-step AUTOOL LM150 guide to refrigerant selection, atmospheric zeroing, dual-clamp mapping, synchronized pressure-temperature diagnosis, evacuation verification, timed pressure checks and controlled shutdown.

A step-by-step AUTOOL LM120+ guide to exact bundle checks, refrigerant selection, atmospheric zeroing, T1/T2 clamp mapping, synchronized pressure-temperature data, SH/SC, test-mode limits and shutdown.

A step-by-step AUTOOL LM120 guide to exact refrigerant selection, atmospheric zeroing, probe and hose setup, synchronized A/C data, relative-vacuum limits, timed pressure checks, and shutdown.

A detailed AUTOOL LM70 guide to refrigerant selection, atmospheric zeroing, safe hose setup, dual-side pressure and pipe-temperature readings, timed tests, evacuation limits, and shutdown.