AUTOOL LM70Product OverviewThe AUTOOL LM70 Smart Digital Manifold is an intelligent refrigerant gauge for automotive air conditioning, home air conditioning, and refrigeration maintenance. It combines pressure measurement, temperature measurement, vacuum monitoring, refrigerant filling, pressure leak testing, and system debugging in one compact dual-channel tool, helping technicians and beginners evaluate A/C system status more accurately and efficiently.0.1 Psi Resolution ≤0.5% FS Accuracy 16 Refrigerants Superheat / Subcooling0-870 PsiPressure Range-1010~0mBar Vacuum16Refrigerants3 YearsWarranty Click to enlarge Click to enlargeKey FeaturesKey FeaturesLM70 provides one-stop support for A/C and refrigeration diagnostics, including high-precision pressure measurement, dual-channel monitoring, automatic superheat / subcooling calculation, pressure leak testing, vacuum monitoring, and refrigerant charging support.High-Precision MeasurementAdvanced digital sensors support 0.1 Psi pressure resolution and 0.1°C / 0.1°F temperature resolution, helping capture subtle changes during installation, maintenance, and system debugging.Dual-Channel Pressure MonitoringThe dual-channel design monitors high-side and low-side pressure values at the same time, reducing repeated port switching and improving diagnosis and refrigerant charging efficiency.Superheat And SubcoolingLM70 automatically calculates current refrigerant superheating and subcooling values to help users understand key refrigeration system operating parameters more quickly.Pressure Leak TestingPressure leak test mode displays measurement time, start pressure, current pressure, and delta pressure to help identify small leaks and recurring A/C faults.Vacuum ModeVacuum mode provides real-time vacuum level display during evacuation, helping users monitor vacuum quality before refrigerant filling or system commissioning.Refrigerant Charging SupportUse the digital pressure / temperature readings, valve set, refrigerant observation window, and three-color hoses to support refrigerant filling and system debugging. Click to enlarge Click to enlarge Click to enlarge Click to enlarge Click to enlarge Click to enlargeProduct DetailsProduct DetailsLM70 includes mainstream refrigerant data, pressure / vacuum / temperature unit switching, a high-brightness backlit display, and three-color refrigerant hoses for workshop and outdoor use.16 Built-In RefrigerantsBuilt-in refrigerant data includes R404a, R407a, R11, R410a, R22, R114, RH2O, R12, R134a, R13, R123, R1234yf, R14, R13b1, R1150, and R1233zd.Multiple Unit SwitchingPressure units include Psi, kPa, MPa, and bar. Vacuum units include inH2O, mBar, and inHg. Temperature units include °C and °F.Backlit DisplayThe high-brightness backlit display helps keep readings visible under strong sunlight, low light, or dim workshop conditions.Three-Color HosesThe included refrigerant hoses are rated for working pressure up to 800 Psi and burst pressure up to 3000 Psi. Confirm your system pressure before use. Click to enlarge Click to enlarge Click to enlarge Click to enlargeApplicationsApplicationsLM70 is suitable for automotive A/C repair, household air conditioner maintenance, refrigeration equipment debugging, and routine cold storage maintenance when used within the rated pressure range and with the correct refrigerant.Automotive A/C RepairMeasure pressure, temperature, vacuum status, refrigerant data, and operating conditions during vehicle air-conditioning service.Household A/C MaintenanceUse pressure and temperature readings to support residential air conditioner maintenance and system checks.Refrigeration Equipment DebuggingSupport refrigeration equipment commissioning through refrigerant data, pressure monitoring, and vacuum mode.Cold Storage MaintenanceUse LM70 for routine cold storage maintenance tasks when the system refrigerant and pressure range are compatible. Click to enlargeSpecificationsAUTOOL LM70 SpecificationsReview LM70 pressure range, temperature range, vacuum range, unit conversion, accuracy, probe support, overload protection, battery type, hose pressure rating, and display information before ordering.Measurement Units And RangesProductAUTOOL LM70 Smart Digital ManifoldPressure Measurement UnitsPsi, Bar, MPa, kPaTemperature Measurement Units°C, °FVacuum Measurement UnitsinH2O, mBar, inHgPressure Range0-870 Psi / 0-60 Bar (rel) / 0-6 MPa / 0-6000 kPaTemperature Range-55°C to 125°C / -67°F to 257°FVacuum Range (rel)-1010 to 0 mBarResolution And AccuracyPressure Resolution0.1 Psi / 0.01 Bar / 0.001 MPa / 1 kPaTemperature Resolution0.1°C / 0.1°FVacuum Resolution0.1 inH2O / 1 mBar / 0.01 inHgPressure Accuracy±0.5% of full scaleTemperature Accuracy±0.5°C / ±0.9°F at rated temperature 22°C / 71.6°FVacuum Accuracy±0.5% of full rangeHardware And FunctionTemperature Probe2 × digital probeOverload942.5 Psi / 65 Bar / 6.5 MPa / 6500 kPaNumber Of Refrigerant Species16Battery TypeThree AAA batteriesDisplayBacklit display, 0.5s response timeHose Working PressureUp to 800 PsiHose Burst PressureUp to 3000 PsiMain Product Width166mm shown in product details imageMain Product Height105mm body height, 72mm foldable hook height shown in product details imageSupportManualAUTOOL LM70 manual available for downloadWarranty3-year warranty for eligible non-human damage casesMaintenanceLifetime maintenance support Click to enlarge Measurement Units And RangesPressure UnitsPsi, Bar, MPa, kPaTemperature Units°C, °FVacuum UnitsinH2O, mBar, inHgPressure Range0-870 Psi / 0-60 Bar / 0-6 MPa / 0-6000 kPaTemperature Range-55°C to 125°C / -67°F to 257°FVacuum Range-1010 to 0 mBar Resolution And AccuracyPressure Resolution0.1 Psi / 0.01 Bar / 0.001 MPa / 1 kPaTemperature Resolution0.1°C / 0.1°FVacuum Resolution0.1 inH2O / 1 mBar / 0.01 inHgPressure Accuracy±0.5% of full scaleTemperature Accuracy±0.5°C / ±0.9°F at 22°C / 71.6°FVacuum Accuracy±0.5% of full range Hardware And SupportTemperature Probe2 × digital probeOverload942.5 Psi / 65 Bar / 6.5 MPa / 6500 kPaRefrigerants16 speciesBattery TypeThree AAA batteriesDisplayBacklit display, 0.5s response timeHose Rating800 Psi working pressure, 3000 Psi burst pressureWarranty3 years for eligible non-human damage cases Click to enlargeProduct DetailsProduct DetailsThe LM70 detail diagram identifies the probe sockets, display, pressure knobs, refrigerant observation window, buttons, fittings, foldable hook, and battery compartment.Probe Sockets And DisplayProbe sockets and the main display are labeled for quick measurement-interface identification.Pressure Control AreaPressure knobs and the refrigerant observation window are shown for service workflow reference.Buttons And FittingsThe diagram marks the button area and fittings used during manifold operation.Foldable Hook And Battery CompartmentThe foldable hook and battery compartment are identified for hanging and power maintenance reference.Before You Order And UseBefore You Order And UseA/C and refrigeration service can involve high pressure, refrigerant gas, toxic gases, and electrical environments. Confirm pressure range, hose suitability, refrigerant type, and working conditions before using LM70.Confirm Rated PressureBefore testing, confirm the rated pressure of the device under test. Do not use LM70 if the test pressure exceeds its rated range.Check Hose SuitabilityIf the included filling hose does not meet your pressure requirement, use a suitable substitute hose for testing.Confirm Refrigerant TypeConfirm the refrigerant type before service and select the correct refrigerant data before diagnosis, charging, or system debugging.Avoid Risky EnvironmentsDo not use or store the instrument in high-temperature, high-humidity, flammable, explosive, or strong electromagnetic environments.Use PPE And VentilationWear proper protective equipment and use the instrument in a well-ventilated area to reduce refrigerant and toxic gas exposure risks.Do Not Modify CircuitryDo not modify the internal circuitry of the instrument. Unauthorized modification may cause equipment damage or safety risks.Warm TipsConfirm system pressure and refrigerant type before service.Do not exceed LM70 pressure range or hose pressure limits.Use suitable replacement hoses when the application requires a different hose rating.Use the manifold only in appropriate service environments with proper PPE and ventilation.Product ComparisonProduct ComparisonCompare LM70 with LM100, LM120, LM120 , LM130, LM150, and LM160 before choosing the right refrigerant database, vacuum mode, leak test, accessories, superheat / subcooling support, and budget.LM70 FocusSupports vacuuming mode, refrigerant mode, pressure leak test, trichromatic tube, two wired temperature clamps, foldable hook, refrigerant visible window, superheat / subcooling, and dual-channel real-time pressure monitoring.Unique LM70 AdvantagesThe comparison chart shows LM70 as the model with refrigerant subcooling / superheat and dual-channel real-time pressure monitoring, both marked for LM70 and not marked for the other listed models.Database DifferenceLM70 includes 16 refrigerant species. LM120 / LM120 list 92, LM150 lists 93, and LM160 lists 95 in the comparison chart.LM160 DifferenceLM160 adds a program control system, 8 languages, two-side handrails, and a larger refrigerant database, but LM70 remains the compact dual-channel manifold option.Decision CheckCompare refrigerant database, pressure valve type, hose accessories, temperature clamps, vacuum units, superheat / subcooling, dual-channel monitoring, and price before ordering. Click to enlarge Click to enlargeWhat Is In The BoxWhat Is In The BoxThe packing list image shows the LM70 smart digital manifold and included accessories. Confirm the package contents in the image before ordering.Main UnitAUTOOL LM70 Smart Digital ManifoldConnectorsRed and blue connectors shown in the package imageHosesThree-color refrigerant filling hosesTemperature ProbesTwo clamp-type wired temperature probesDocumentationAUTOOL LM70 user manualPackagingLM70 retail box shown in the package imageManual And DownloadsManual And DownloadsDownload the AUTOOL LM70 manual to review setup, operating modes, refrigerant selection, unit conversion, vacuum operation, pressure leak testing, and maintenance guidance. Click to enlargeAUTOOL LM70 User ManualOpen the PDF manual for LM70 operation, refrigerant selection, unit conversion, vacuum mode, leak test, and safety instructions. Download ManualNeed Setup Confirmation?Contact AUTOOL Store before ordering if you need to confirm refrigerant type, pressure range, hose requirements, substitute hose options, vacuum mode, pressure leak test setup, or model selection.Email[email protected] WhatsApp 86 189 2647 7404Related ProductsRelated ProductsCompare related AUTOOL refrigerant gauge and smart digital manifold products before choosing the right function level, refrigerant database, accessory set, and budget.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 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 AC Manifold Gauge Refrigerant IdentifierRated 0 out of 5(0) From US$98.00 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 Questions And AnswersThese answers cover supported systems, refrigerant data, superheat / subcooling calculation, measurement ranges, vacuum mode, pressure leak testing, hose pressure, batteries, package contents, model comparison, and safety precautions. What Systems Can AUTOOL LM70 Be Used For? AUTOOL LM70 can be used for automotive air conditioning systems, home air conditioners, refrigeration equipment debugging, and routine cold storage maintenance. It supports pressure measurement, temperature measurement, vacuuming, refrigerant filling, pressure leak testing, and system debugging when the system pressure and refrigerant type are compatible. Which Refrigerants Are Built Into LM70? LM70 includes built-in data for 16 refrigerants: R404a, R407a, R11, R410a, R22, R114, RH2O, R12, R134a, R13, R123, R1234yf, R14, R13b1, R1150, and R1233zd. Confirm the refrigerant type before service. Does LM70 Calculate Superheat And Subcooling Automatically? Yes. LM70 automatically calculates refrigerant superheating and subcooling values based on system pressure, refrigerant data, evaporation / condensation temperature, and pipe temperature conditions, helping users improve refrigeration system fault diagnosis efficiency. What Are The Pressure, Temperature, And Vacuum Ranges? The pressure range is 0-870 Psi / 0-60 Bar / 0-6 MPa / 0-6000 kPa. The temperature range is -55°C to 125°C / -67°F to 257°F. The vacuum range is -1010 to 0 mBar. Does LM70 Support Vacuum Measurement? Yes. LM70 supports vacuum mode with a vacuum measurement range of -1010 to 0 mBar. It can display current vacuum level, measurement time, ambient temperature, and related temperature data during evacuation. Does LM70 Support Pressure Leak Testing? Yes. LM70 supports pressure leak test mode and displays measurement time, start pressure, current pressure, and delta pressure. Pressure values are measured with 0.1 Psi resolution to help detect small leaks and decide whether leak repair or part replacement may be needed. What Pressure Can The Included Hoses Withstand? The included three-color refrigerant hoses are rated for working pressure up to 800 Psi and burst pressure up to 3000 Psi. Always confirm the rated pressure of the device under test. If the included hose does not meet the pressure requirement, use a suitable substitute hose. What Batteries Does LM70 Use? LM70 uses three AAA batteries. The product details image also shows a foldable hook, brass tube fittings, a refrigerant observation window, left and right probe sockets, low-pressure and high-pressure control knobs, and a battery compartment. What Is Included In The Package? The package image shows the LM70 main unit, red and blue connectors, three-color refrigerant hoses, two clamp-type wired temperature probes, AUTOOL LM70 user manual, and retail box. Refer to the Packing List image for final package confirmation. How Is LM70 Different From LM120, LM130, And LM160? LM70 focuses on compact dual-channel manifold use with vacuuming mode, refrigerant mode, pressure leak test, trichromatic tube, two wired temperature clamps, refrigerant visible window, superheat / subcooling, and dual-channel real-time pressure monitoring. LM120 / LM120 offer larger refrigerant databases in the comparison chart, LM130 is a kit-style option, and LM160 adds a program control system, 8 languages, two-side handrails, and a larger refrigerant database. What Safety Precautions Should I Follow? Confirm the rated pressure before testing, do not exceed the LM70 rated range, use a suitable substitute hose when required, confirm refrigerant type, wear proper protective equipment, and use the instrument in a well-ventilated area. Do not use or store it in high-temperature, high-humidity, flammable, explosive, or strong electromagnetic environments. Do not modify the internal circuitry.Warranty And ContactWarranty And ContactFor LM70 setup, refrigerant confirmation, hose pressure questions, substitute hose confirmation, superheat / subcooling calculation, vacuum mode, pressure leak test, manual support, warranty, or lifetime maintenance, contact AUTOOL Store directly.Pre-Sales And Product SupportUse support if you need help confirming refrigerant type, pressure range, hose requirements, vacuum measurement, leak test setup, manual usage, or whether LM70 is suitable for your automotive A/C, home A/C, refrigeration equipment, or cold storage maintenance task.LM70 setup and refrigerant confirmationManual and operation supportHose pressure and substitute hose confirmationSuperheat and subcooling calculation questionsVacuum mode and pressure leak test questionsPacking list and accessory confirmation3-year warranty for eligible non-human damage casesLifetime maintenance supportEmail Support[email protected] WhatsApp Support 86 189 2647 7404
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