AUTOOL LM100 Smart Digital Vaccum Gauge

AUTOOL LM100Product OverviewAUTOOL LM100 Intelligent Digital Vacuum Gauge is a powerful digital vacuum gauge for refrigeration, HVAC, and automotive A/C service. Built with high-strength engineering plastics, soft non-slip silicone, a brass valve body, and a foldable hook, it combines rugged durability with comfortable handheld operation. Equipped with a high-precision sensor, it delivers measurement accuracy up to ±0.2% and resolution as fine as 0.1 mbar. The 2.8-inch backlit display, evacuation mode, pressure retention test mode, one-button 7-unit switching, automatic sleep function, and LM130 data transmission support make it a compact and practical tool for vacuum monitoring and refrigeration system sealing checks.±0.2% Accuracy 0.1 mbar Resolution Evacuation Mode LM130 Data Transfer2.8-inchBacklit Display7 UnitsOne-Button Switch20 minAuto Sleep3 YearsWarranty Click to enlarge Click to enlargeKey FeaturesKey FeaturesLM100 focuses on accurate vacuum measurement, refrigeration system sealing checks, LM130 synchronized data transfer, and portable field operation.Accurate Data MeasurementEquipped with a high-precision sensor, LM100 offers measurement accuracy up to ±0.2% and vacuum resolution up to 0.1 mbar.Data Transmission With LM130The integrated microprocessor and communication interface enable synchronized data transfer when connected with the AUTOOL LM130.Pressure Retention TestPressure retention test mode helps detect the sealing condition of refrigeration systems and supports small-leak inspection.Portable Durable BuildHigh-strength engineering plastics, soft anti-slip silicone, brass valve body, and foldable hook support rugged daily service use.Key FeaturesKey FeaturesLM100 combines high-precision measurement, evacuation monitoring, leak testing, backlit display, unit switching, and practical structure design for refrigeration and A/C service work.High-Precision SensorMeasurement accuracy up to ±0.2%, vacuum resolution up to 0.1 hPa / 0.1 mbar / 0.1 Torr / 0.01 inHg, and temperature accuracy up to ±0.5°C / ±0.9°F / ±0.5K.Evacuation ModeQuickly monitors air and moisture removal during refrigeration system evacuation and displays vacuum level changes in real time.Pressure Leak Test ModePressure retention test mode helps accurately inspect refrigeration system sealing condition and identify small pressure changes.LM130 Data TransmissionConnects with LM130 through the integrated communication interface for high-precision synchronized data transmission.2.8-Inch Backlit DisplayThe high-definition backlit display is suitable for dim and bright environments, with 0.5-second response time for quick reading.User-Friendly StructureFoldable hook, multi-button layout, silicone side grip, brass connector, and automatic power-off after 20 minutes of inactivity improve field usability. Click to enlarge Click to enlarge Click to enlarge Click to enlarge Click to enlarge Click to enlarge Click to enlargeSpecificationsSpecifications And Pressure Safety LimitsConfirm vacuum range, unit support, temperature range, pressure limits, hose pressure rating, display, and operating environment before testing.MeasurementVacuum UnitshPa, mbar, Torr, inHgTemperature Units°C, °F, KVacuum Range0-2000 mbar / 0-1500 TorrAbsolute Pressure Display0-2000 mbarVacuum Resolution0.1 hPa / 0.1 mbar / 0.1 Torr / 0.01 inHgVacuum AccuracyWithin ±0.2% of full rangeTemperature Range-55-125°C / -67-257°F / 218-398KTemperature Resolution0.1°C / 0.1°F / 1KTemperature Accuracy±0.5°C / ±0.9°F / ±0.5KDeviceDisplay2.8-inch backlit displayResponse Time0.5 secondsOperating Temperature-10-60°COperating Voltage6V, 4 × 1.5V batteriesAuto SleepAutomatically powers off after 20 minutes of inactivityBodyHigh-strength engineering plastics and soft anti-slip siliconeConnectorBrass valve body / refilling tube brass connectorHookFoldable hook designPressure SafetyGauge Pressure Range-101 kPa to 6 MPa / -0.1 bar to 60 barAbsolute Limit10 MPa / 100 barStandard Hose Max Working Pressure600 PSI / about 4.13 MPa / 41.3 barStandard Hose Limit3000 PSI / about 20.68 MPa / 206.8 bar MeasurementVacuum UnitshPa, mbar, Torr, inHgTemperature Units°C, °F, KVacuum Range0-2000 mbar / 0-1500 TorrVacuum Resolution0.1 hPa / 0.1 mbar / 0.1 Torr / 0.01 inHgVacuum AccuracyWithin ±0.2% of full rangeTemperature Range-55-125°C / -67-257°F / 218-398KTemperature Accuracy±0.5°C / ±0.9°F / ±0.5K DeviceDisplay2.8-inch backlit displayResponse Time0.5 secondsOperating Temperature-10-60°COperating Voltage6V, 4 × 1.5V batteriesAuto SleepAutomatically powers off after 20 minutes of inactivityBodyHigh-strength engineering plastics and soft anti-slip siliconeHookFoldable hook design Pressure SafetyGauge Pressure Range-101 kPa to 6 MPa / -0.1 bar to 60 barAbsolute Limit10 MPa / 100 barStandard Hose Max Working Pressure600 PSI / about 4.13 MPa / 41.3 barStandard Hose Limit3000 PSI / about 20.68 MPa / 206.8 bar Product ComparisonProduct ComparisonLM100 is positioned as a smart digital vacuum gauge for vacuum monitoring and pressure leak testing. Compare it with AUTOOL LM120, LM120 , LM130, LM150, and LM160 before choosing a complete A/C gauge or refrigerant tool.LM100 FocusVacuuming mode, pressure leak test, foldable hook, vacuum units, temperature units, and LM130 data transmission supportCompared With LM120 / LM150 / LM160LM120, LM150, and LM160 focus more on refrigerant mode, high / low pressure valve use, refrigerant database, and manifold testingCompared With LM130LM100 can connect with LM130 for synchronized data transmission, while LM130 itself is a separate digital manifold gauge toolDecision CheckChoose LM100 for vacuum monitoring and pressure retention leak tests; compare LM120 / LM150 / LM160 if refrigerant filling, manifold functions, or refrigerant database support is required Click to enlargeManual And DownloadsManual And DownloadsDownload the AUTOOL LM100 user manual for setup, unit switching, evacuation mode, pressure leak test mode, safety limits, and maintenance guidance. Click to enlargeAUTOOL LM100 User ManualOpen the PDF manual for LM100 operation, safety limits, pressure leak test mode, evacuation mode, and unit settings. Download ManualNeed Setup Confirmation?Contact AUTOOL Store if you need to confirm pressure range, hose compatibility, LM130 data transmission, unit switching, or refrigeration system leak test setup before use.Email[email protected] WhatsApp 86 189 2647 7404Related ProductsRelated ProductsCompare related AUTOOL digital manifold gauges and refrigerant tools before choosing the right gauge type, refrigerant function, and testing workflow.Select options This product has multiple variants. The options may be chosen on the product page Add to wishlist Add to compare Quick view iconQuick view Smart Digital Manifold GaugeAUTOOL LM100 Smart Digital Vaccum GaugeRated 0 out of 5(0) From US$120.00 Select options This product has multiple variants. The options may be chosen on the product page Select options This product has multiple variants. The options may be chosen on the product page Add to wishlist Add to compare Quick view iconQuick view Smart Digital Manifold GaugeAUTOOL LM130 Smart Digital Manifold KitRated 0 out of 5(0) From US$135.00 Select options This product has multiple variants. The options may be chosen on the product page Select options This product has multiple variants. The options may be chosen on the product page Add to wishlist Add to compare Quick view iconQuick view Smart Digital Manifold GaugeAUTOOL LM160 Refrigerant Leak Detector Digital Manifold GaugesRated 0 out of 5(0) From US$209.00 Select options This product has multiple variants. The options may be chosen on the product page Select options This product has multiple variants. The options may be chosen on the product page Add to wishlist Add to compare Quick view iconQuick view Smart Digital Manifold GaugeAUTOOL LM150 Digital Manifold Gauges Digital AC GaugesRated 0 out of 5(0) From US$159.00 Select options This product has multiple variants. The options may be chosen on the product page Select options This product has multiple variants. The options may be chosen on the product page Add to wishlist Add to compare Quick view iconQuick view Smart Digital Manifold GaugeAUTOOL LM120 Digital Refrigerant Gauges Hvac GaugesRated 0 out of 5(0) From US$149.00 Select options This product has multiple variants. The options may be chosen on the product page Related GuidesRelated GuidesUse these related articles to understand refrigerant service context, manifold-gauge decisions, and A/C workflow before using LM100.Guide / 2025-08-24How to Choose a Smart Digital ManifoldCompare digital manifold models by refrigerant support, vacuum mode, and pressure retention testing before choosing a tool.Guide / 2025-06-06AUTOOL Refrigeration Digital Gauges ComparedCompare digital refrigeration gauges by display, connectivity, and measurement workflow before buying for A/C service work.Guide / 2025-06-08How to Choose a Vacuum Pressure GaugeReview vacuum pressure gauge options to understand how pressure, vacuum, and unit reading habits affect your tool choice.Guide / 2025-06-20How do you choose a vacuum gauge? It’s simple!Read the vacuum gauge basics before choosing a refrigerant service workflow, pressure unit, and testing mode. Click to enlargeWhat Is In The BoxWhat Is In The BoxReview the package image to confirm the LM100 main unit, product box, user manual, and included accessories before ordering. Packing List uses the most relevant single package image only.Main UnitAUTOOL LM100 Smart Digital Vacuum GaugeManualUser manual shown in the package imageConnection CableData / connection cable shown in the package imageConnectorBrass valve connector shown in the package imageShort HoseYellow short hose shown in the package imagePackagingProduct box shown in the package imageBefore You Order And UseBefore You Order And UseLM100 has defined pressure limits, hose pressure limits, environmental restrictions, and safety requirements. Confirm the rated pressure of the system before testing.Safety And Use NotesLM100 measures gauge pressure with a range of -101 kPa to 6 MPa / -0.1 bar to 60 bar.The absolute pressure limit is 10 MPa / 100 bar.The standard hose maximum working pressure is 600 PSI / about 4.13 MPa / 41.3 bar.The standard hose limit is 3000 PSI / about 20.68 MPa / 206.8 bar.Before testing, confirm the rated pressure of the equipment being tested.Do not use the LM100 if the test pressure exceeds its rated range.For DY517A, if the charging hose does not meet pressure requirements, use a suitable replacement hose for testing.Do not use or store this refrigerant leak detector in high temperature, high humidity, flammable, explosive, or strong electromagnetic environments.Do not modify the internal circuitry of the LM100 to avoid damage or potential hazards.Wear proper protective equipment during testing.Use the instrument in a well-ventilated environment to avoid inhaling toxic gases.Questions And AnswersThese answers cover LM100 use, refrigerant mode limitations, LM130 connection, unit switching, vacuum range, pressure limits, auto sleep, and package contents. What Is The LM100 Used For? LM100 is used for refrigeration, HVAC, and automotive A/C system vacuum monitoring and pressure leak testing. It helps users observe vacuum level changes and evaluate refrigeration system sealing condition. Does LM100 Support Refrigerant Mode? No. LM100 is mainly a smart digital vacuum gauge and pressure leak test tool. It is not a complete refrigerant manifold gauge. If refrigerant mode, refrigerant database, or high / low pressure manifold valve functions are required, compare LM120, LM150, or LM160 instead. Can LM100 Connect To LM130? Yes. LM100 has an integrated microprocessor and communication interface that can connect to LM130 for synchronized high-precision data transmission. What Units Can LM100 Switch Between? LM100 supports one-button switching between hPa, mbar, Torr, inHg, °C, °F, and K. What Is The Vacuum Range? The vacuum range is 0-2000 mbar / 0-1500 Torr. Vacuum resolution is 0.1 hPa, 0.1 mbar, 0.1 Torr, or 0.01 inHg depending on the selected unit. What Pressure Limit Should I Watch Before Testing? Confirm that the tested equipment does not exceed the LM100 and hose rated pressure range. LM100 measures gauge pressure from -101 kPa to 6 MPa / -0.1 bar to 60 bar, and the absolute limit is 10 MPa / 100 bar. The standard hose maximum working pressure is 600 PSI / about 4.13 MPa / 41.3 bar. Does LM100 Automatically Power Off? Yes. LM100 automatically powers off after 20 minutes of inactivity to save energy. What Is Included In The Package? Please refer to the Packing List image. The package image shows the LM100 main unit, product box, user manual, data / connection cable, brass valve connector, yellow short hose, and related accessories shown in the package image.Warranty And ContactWarranty And ContactFor LM100 support, manual requests, pressure range confirmation, LM130 data transmission setup, hose / connector pressure compatibility, refrigeration system leak test guidance, or warranty questions, contact AUTOOL Store directly.Pre-Sales And Product SupportUse support if you need help confirming whether LM100 is suitable for your refrigeration, HVAC, or automotive A/C vacuum test task; checking rated pressure; selecting a suitable hose; or understanding the difference between LM100 and AUTOOL digital manifold gauges.3-year warranty for eligible non-human damage casesLifetime maintenance supportManual and setup supportPressure range and hose compatibility confirmationLM130 data transmission supportRefrigeration system leak test guidanceEmail Support[email protected] WhatsApp Support 86 189 2647 7404