Autool LM120 | AC Manifold Gauge
Warranty directly via AsTools
Warranty directly via AsTools
We handle warranty cases ourselves, quickly and without involving the manufacturer. Thanks to our own parts inventory and technical expertise, we can usually assist you immediately. Only in exceptional cases do we still send the product to the supplier.
2 years warranty on all products
2 years warranty on all products
All our products come with a 2-year factory warranty. This ensures you long-lasting quality and service.
Easy returns
Easy returns
You can easily request your return through your account. We will send you the return label by email. Return shipping costs are your responsibility.
Professional customer service
Professional customer service
Our experts are ready to help you quickly and professionally, both online and in our physical store. Questions? Feel free to contact us!
The Autool LM120 is a digital air conditioning manifold gauge for installing, maintaining and inspecting refrigeration systems and air conditioning units. The gauge measures pressure in a range of 0 to 6000 kPa and vacuum from -101 to 0 kPa. The temperature range spans -40 °C to 150 °C.
The device is equipped with a built-in database of 89 refrigerants with corresponding pressure and saturation temperature data. It features dual pressure and temperature measurement, vacuum measurement, pressure loss testing and a sight glass for visual inspection of refrigerant status. All measurements are clearly displayed on the backlit LCD screen.
KEY FEATURES
IMPORTANT NOTES
Application and functionality
The LM120 offers various measurement modes for comprehensive air conditioning system analysis:
- Pressure and temperature test: Simultaneously measure pressure and temperature on both the high-side and low-side of the system.
- Evaporation pressure and temperature (Ev): Calculates and displays the transition from liquid to gas.
- Condensation pressure and temperature (Co): Calculates and displays the transition from gas to liquid.
- Pressure drop test: Leak test via pressure differential (ΔP) over a set period.
- Refrigerant selection: Choose from a database of 89 types for accurate calculations.
- Vacuum measurement: Check for the absence of non-condensable gases and moisture.
Package contents
- 1x Autool LM120 digital air conditioning manifold gauge
- 1x User manual
- 1x Carrying case
Technical specifications
| Specification | Description |
|---|---|
| Brand | Autool |
| Model | LM120 |
| Pressure test range | 0 – 6000 kPa |
| Pressure resolution | 1 kPa |
| Pressure accuracy | ±0.5% FS + 5 dgt |
| Maximum pressure load | 10,000 kPa (10 MPa / 100 bar) |
| Vacuum test range | -101 – 0 kPa |
| Temperature Test Range | -40 °C to 150 °C |
| Temperature Accuracy | ±0.5 °C + 2 dgt |
| Pressure Units | kPa, MPa, Bar, inHg, PSI |
| Temperature Units | °C, °F |
| Refrigerant Database | 89 types |
| Power Supply | 4x 1.5V AA (LR6) batteries |
| Dimensions | 170 x 110 x 50 mm |
| Weight | 950 g |





