AUTOOL LM120+ Digital Refrigerant Gauges Hvac Gauges

The AUTOOL LM120+ is a digital refrigerant manifold gauge for air conditioner, refrigeration equipment, and cold storage installation, testing, and maintenance. It supports dual pressure testing, vacuum measurement, pressure leak testing, refrigerant filling assistance, multi-unit switching, and dual temperature measurement when compatible wired temperature clamps are connected. LM120+ is used on pressurized refrigeration systems. Confirm the system pressure, hose rating, clamp accessory requirements, and working environment before connecting the gauge. LM120+ combines digital pressure testing, vacuum measurement, refrigerant data reference, pressure leak testing, and a durable handheld manifold body for HVAC and refrigeration service work. Use LM120+ as an auxiliary instrument for refrigeration equipment installation, testing, and maintenance. Always follow the operating requirements of the specific equipment and refrigerant. The manual covers refrigerant filling and pressure inspection, vacuum operation, and pressure leak testing. The steps below summarize the user decision path without replacing the full manual. The LM120+ digital manifold gauge is powered by 4 AA batteries and supports gauge pressure testing, relative vacuum testing, temperature measurement, pressure leak testing, and refrigerant database reference. Key features • Dual Pressure Test: Measures refrigeration pressure on both sides for system checks and servicing. • Dual Temperature Test: Supports temperature testing with the required clip for more complete diagnostics. • Built-In Database: Includes refrigerant data plus unit and mode switching for faster setup. • Pressure Measurement Type: Gauge pressure • Pressure Test Units: kPa, MPa, bar, inHg, PSI • Pressure Test Range: 0kPa-6000kPa