AUTOOL LM150 Digital Manifold Gauge for Refrigerant Filling & Pressure Inspection HVAC Vacuum Gauge

AUTOOL LM150 Digital Manifold Gauge

The AUTOOL LM150 is a digital manifold gauge for air-conditioning and refrigeration pressure, vacuum and temperature measurement. It gives technicians a clear digital alternative to conventional gauges for automotive A/C diagnosis and service, and also suits vacuuming and refrigerant filling in other air conditioning and refrigeration work.

Who It Suits

Automotive A/C technicians and refrigeration service workshops who want accurate digital readings, leak monitoring and a large, easy-to-read display.

Key Features

• 93-refrigerant database – operating data for the selected refrigerant
• Dual pressure measurement – high and low side
• Superheat and subcooling calculation from the selected refrigerant, pressures and T1/T2 temperatures
• Dual temperature measurement using test clamps on the high and low pressure pipes (clamps required)
• Vacuum measurement shown as a percentage of vacuum
• Pressure leakage test with leakage time and rate recording
• Vacuum, hold and charge modes, with V-shaped ball valves controlling the high and low side flow
• Pressure-retention test records initial and current pressure, difference and elapsed time
• Unit conversion – pressure in kPa, MPa, bar, inHg and PSI; temperature in °C or °F
• 3.5-inch HD backlit LCD divides results with lines so the data is clear at a glance
• Tough build – IP54 anti-slip housing of engineering plastic and silicone, with copper connections, foldable hook and refrigerant sight window

Technical Specifications

• Pressure range: 0–6000 kPa (gauge), resolution 1 kPa
• Pressure accuracy: ±0.5% (FS) + 5 digits
• Pressure overload limit: 10,000 kPa (10 MPa / 100 bar)
• Vacuum range: -101 kPa to 0 kPa, resolution 1 kPa
• Temperature range: -40°C to 150°C (-40°F to 302°F)
• Temperature resolution: 0.1°C up to 99.9°C, 1°C from 100°C
• Temperature accuracy: ±0.5°C + 2 digits
• Power: 4 x 1.5V AA batteries
• Dimensions: 240 x 145 x 50mm
• Housing rating: IP54
• Connections: 1/4-inch standard

Package Contents

• AUTOOL LM150 digital manifold gauge
• Hard storage case
• Three-colour hose set (red, blue, yellow)
• Two wired temperature clamps (T1 / T2)
• Adapters and brass connector
• Manual