AUTOOL LM70 Smart Digital Manifold Gauge
US$169.00
- Dual Pressure + Temperature
- Automatic SH/SC
- 16 Refrigerant Profiles
- Vacuum + Retention Modes
- Dual Pressure + Temperature: Read high- and low-side pressure together with simultaneous line temperatures from two wired clamps.
- Automatic SH/SC: Calculate superheat and subcooling from the selected refrigerant, pressure readings, and stable pipe-temperature inputs.
- 16 Refrigerant Profiles: Select from 16 named refrigerants, including R134a and R1234yf.
- Vacuum + Retention Modes: Monitor live vacuum during evacuation and review time, starting pressure, current pressure, and pressure difference for sealing assessment.
- 0.1 psi / 0.1°C Resolution: Track changes with 0.1 psi pressure and 0.1°C/0.1°F temperature resolution.
- 3- รับประกันปี ตัวเครื่องหลัก 3 ปี · อุปกรณ์เสริม 1 ปี
- 90-Day Returns สินค้าที่ส่งคืนต้องอยู่ในสภาพสมบูรณ์ภายใน 90 วัน
- ร้านค้าอย่างเป็นทางการ สินค้าแท้ · การสนับสนุนโดยตรง
AUTOOL LM70 · 16-Refrigerant Digital Manifold
Calculate SH/SC from Live Pressure and Temperature
Measure high- and low-side pressure across 0–6 MPa and pipe temperature from -55°C to 125°C with compatible wired clamps. Select the correct profile from 16 refrigerants, including R134a and R1234yf, for superheat/subcooling calculations. Pressure resolution of 0.1 psi, relative-vacuum monitoring and timed pressure retention support condition comparisons, while the sight window and valves assist charging.
- 0–6 MPa Gauge Pressure
- 16 Refrigerant Profiles
- -55°C to 125°C with Probes
- Superheat / Subcooling
- Vacuum & Retention Monitoring

Key Features
Pressure and Clamp Inputs for SH and SC
Dual-Channel Pressure Monitoring
The dual-channel design reads high- and low-side pressure together for A/C pressure diagnosis and refrigerant charging, reducing repeated port switching.
Two Pipe-Temperature Inputs
Use the wired clamps for simultaneous line-temperature data.
Automatic Superheat/Subcooling
LM70 automatically calculates current refrigerant superheating and subcooling values to help users understand key refrigeration system operating parameters more quickly. Calculate SH/SC from selected refrigerant, pressure and stable pipe-temperature inputs.
Sixteen Named Refrigerants
R404a, R407a, R11, R410a, R22, R114, H2O profile, R12, R134a, R13, R123, R1234yf, R14, R13b1, R1150 and R1233zd are listed.
Pressure-Retention Test
Review test time, starting pressure, current pressure and pressure difference to assess system sealing.
Real-Time Vacuum Monitoring
Vacuum mode displays the live vacuum level during evacuation so users can monitor it before commissioning or refrigerant charging.
Refrigerant Charging Assistance
Use the digital pressure / temperature readings, valve set, refrigerant observation window, and three-color hoses to support refrigerant filling and system debugging. Use readings, valves, sight window and three-color hose connections within the approved procedure.
ความละเอียดสูง
Digital sensors provide 0.1 psi pressure and 0.1°C / 0.1°F temperature resolution to track small changes during installation, maintenance, and system checks.
หน่วยที่เลือกได้
Pressure: psi/kPa/MPa/bar; vacuum: inH2O/mbar/inHg; temperature: °C/°F.
Portable Service Design
A foldable hook, brass fittings and accessible battery compartment make the LM70 convenient to position, connect and power. Backlight, hook, brass fittings, sight window and three-AAA power support workshop/field positioning.
Three-Color Hoses
The 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.
Buttons And Fittings
The diagram marks the button area and fittings used during manifold operation.
AAA Battery Power
Three AAA batteries power the LM70 for portable pressure and temperature testing.
รับประกัน 3 ปี
ตัวเครื่องหลัก: รับประกัน 3 ปี อุปกรณ์เสริมมาตรฐาน: รับประกัน 1 ปีนโยบายการรับประกัน
วิธีใช้
Connect, Select, Stabilize, and Calculate
Confirm Refrigerant And Ratings
Identify the refrigerant, verify it is in the 16-profile list and compare system/gauge/hose ratings.
ตรวจสอบและเชื่อมต่อ
Check hoses, couplers and probes; connect red/blue service sides and clamp both pipes firmly.
Select Units And Refrigerant
Choose the exact profile and desired pressure, vacuum and temperature units.
Read Or Run A Test
Review both pressure sides and SH/SC, monitor vacuum, or run the timed retention mode as required.
Verify And Follow Up
Compare results with the equipment procedure and use separate diagnosis for leak location or abnormal operation.
ความปลอดภัยและความเข้ากันได้
Match Refrigerant, Port, Hose, and Pressure
Know The Refrigerant
Confirm the refrigerant from the vehicle or equipment information, then select it on LM70.
Respect The Lowest Working Rating
Confirm the instrument range, system rating and 800 PSI hose working pressure; 3000 PSI is a burst figure.
Use Stable Probe Contact
Incorrect temperature contact can invalidate SH/SC calculations.
Use PPE And Ventilation
Wear suitable protection, ventilate and avoid heat, humidity, ignition and strong electromagnetic environments.
Do Not Modify Circuitry
Follow the current manual and replace unsuitable hoses rather than altering the instrument.
Verify Pressure and Refrigerant
Confirm system pressure and refrigerant type before service.
Respect All Pressure Limits
Do not exceed LM70 pressure range or hose pressure limits.
Match Replacement Hose Rating
Use suitable replacement hoses when the application requires a different hose rating.
Use PPE and Ventilation
Use the manifold only in appropriate service environments with proper PPE and ventilation.
ผลการทดสอบ
Read Pressure, Temperature, SH, and SC Together
High/Low Pair
Interpret together with known refrigerant, operating condition and pipe temperatures.
SH And SC
Valid only with the correct refrigerant profile and stable clamp contact; compare with equipment guidance.
Vacuum Trend
Use the achieved value and hold behavior against the system service target.
Retention ΔP
A change prompts connection checks and separate approved leak-location work.
เปรียบเทียบรุ่น
Choose a Compact Refrigerant Manifold
คู่มือรุ่น
Choose one or more models. LM70 is selected by default.
| เลือกให้เหมาะสมกับงานของคุณ | LM70 | LM120+ | LM150 | LM160 |
|---|---|---|---|---|
| เกณฑ์การคัดเลือก | ||||
| Explicit SH/SC support | มี (ใบกำกับภาษีเต็มรูปแบบ) | Yes with compatible clamps | Yes with included clamps | โปรดยืนยันก่อนสั่งซื้อ |
| เหตุผลหลักในการคัดเลือก | 16-profile dual-channel SH/SC workflow | Plus manifold configuration | 93 profiles and two clamps | Program control and eight languages |
คู่มือและไฟล์ดาวน์โหลด
Use the Manual for Setup and Service

AUTOOL LM70 User Manual
Open the PDF manual for LM70 pressure and pipe-temperature readings, refrigerant selection, superheat and subcooling, vacuum checks, safe connections, and troubleshooting.

แพ็คเกจ
มีอะไรบ้าง
- LM70 Main UnitSmart digital manifold.
- Three-Color Hose SetRated AC service hoses.
- Two Temperature ClampsWired pipe probes for temperature and SH/SC.
- Red/Blue ConnectorsService connectors; confirm system fit.
- Manual And Retail BoxDocumentation and packaging.
คำถามที่พบบ่อย
Refrigerant and Calculation Questions
What Batteries Does LM70 Use?
LM70 uses three AAA batteries. It also has 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.
- It combines simultaneous high/low pressure with two pipe temperatures and explicit automatic superheat/subcooling.
Which refrigerants are stored?
Sixteen named profiles are listed, including R134a and R1234yf; verify your exact refrigerant in the list.
Does it identify refrigerant?
No. The technician must know and select the refrigerant.
Can it locate a leak?
No. Retention mode can show pressure change but not the leak point.
What is required for SH/SC?
Correct refrigerant selection, both relevant pressure readings and stable temperature-clamp contact.
What is the hose rating?
The standard hose is rated for 800 PSI working pressure and 3000 PSI burst pressure.
What powers the gauge?
แบตเตอรี่ AAA สามก้อน
Can it replace complete system diagnosis?
No. Use its measurements with system-specific pressure, temperature, airflow and repair procedures.
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.
ในแพ็คเกจประกอบด้วยอะไรบ้าง?
Package contents include 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.
How Is LM70 Different From LM120, LM130, And LM160?
LM70: dual-channel pressure, two wired clamps, superheat/subcooling, vacuum, retention, sight window, and three-color hoses. Choose LM120/LM120+ for a larger refrigerant database, LM130 for the LM100-linked kit workflow, or LM160 for program control, eight languages, side handles, and its larger 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.



































Newman Stuart ✓ การซื้อที่ได้รับการยืนยัน -
This little thing is very good.
This little thing is very good. I bought it for home use. My old air conditioner occasionally has some problems, and this thing can clearly find the problem. It is very convenient and easy to use.
เลสเตอร์เฮอร์นันเดซ ✓ การซื้อที่ได้รับการยืนยัน -
จัดส่งที่รวดเร็ว
It’s super easy to use, shows both pressures at the same time, and even calculates subcooling and superheating automatically. Works great on both car and home AC systems with R410A or R134a.
เลสเตอร์เฮอร์นันเดซ ✓ การซื้อที่ได้รับการยืนยัน -
จัดส่งที่รวดเร็ว
It’s super easy to use, shows both pressures at the same time, and even calculates subcooling and superheating automatically. Works great on both car and home AC systems with R410A or R134a.