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LM55 Temp Clamp Hvac Temp Clamp
Temp Clamp Hvac Temp Clamp
AUTOOL LM55 Temp Clamp Hvac Temp Clamp
AUTOOL LM55 Temp Clamp Hvac Temp Clamp
AUTOOL LM55 Temp Clamp Hvac Temp Clamp
AUTOOL LM55 Temp Clamp Hvac Temp Clamp
AUTOOL LM55 Temp Clamp Hvac Temp Clamp
AUTOOL LM55 Temp Clamp Hvac Temp Clamp
AUTOOL LM55 Temp Clamp Hvac Temp Clamp
AUTOOL LM55 Temp Clamp Hvac Temp Clamp
AUTOOL LM55 Temp Clamp Hvac Temp Clamp
  1. LM55 Temp Clamp Hvac Temp Clamp
  2. Temp Clamp Hvac Temp Clamp
  3. AUTOOL LM55 Temp Clamp Hvac Temp Clamp
  4. AUTOOL LM55 Temp Clamp Hvac Temp Clamp
  5. AUTOOL LM55 Temp Clamp Hvac Temp Clamp
  6. AUTOOL LM55 Temp Clamp Hvac Temp Clamp
  7. AUTOOL LM55 Temp Clamp Hvac Temp Clamp
  8. AUTOOL LM55 Temp Clamp Hvac Temp Clamp
  9. AUTOOL LM55 Temp Clamp Hvac Temp Clamp
  10. AUTOOL LM55 Temp Clamp Hvac Temp Clamp
  11. AUTOOL LM55 Temp Clamp Hvac Temp Clamp

AUTOOL LM55 Temp Clamp Hvac Temp Clamp

(5 customer reviews)

US$45.00

Key Features
  • 40mm Clamp Fit
  • High Accuracy
  • History Storage
Key Features
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AUTOOL LM55

Product Overview

The AUTOOL LM55 is a pipe clamp temperature meter designed for HVAC, refrigeration, and automotive A/C pipe temperature measurement. It helps technicians check pipe temperature in real time, view temperature waveform changes, browse historical records, and measure suitable pipes under 40mm diameter without complicated setup.

Pipe Temp Clamp <40mm Pipe Diameter Real-Time Reading Waveform History
0.96″Color Screen
8 SetsHistory Records
150sPer Record
3 YearsMain Unit Warranty
AUTOOL LM55 digital pipe clamp temperature meter product image Click to enlarge
AUTOOL LM55 digital temp clamp feature overview image Click to enlarge
Before You Order And Use

Before You Order And Use

Before using the LM55 HVAC temperature clamp, confirm the pipe diameter, temperature condition, battery setup, and safe storage environment.

Avoid High-Temperature Adding Points

Do not place the clamp on high-temperature adding points or unsafe heating positions. For routine product-page use, keep pipe testing below 150°C.

Check Pipe Diameter First

LM55 is suitable for pipes under 40mm diameter. Do not force the clamp onto oversized or irregular surfaces.

Use 3 × AAA Batteries

The device uses a 4.5V power supply from three AAA batteries. Install batteries correctly before powering on.

Keep The Clamp Surface Stable

For more consistent readings, clamp the sensor firmly on a clean pipe surface and avoid loose contact during measurement.

Protect The Housing

Avoid rubbing the product against rough surfaces. Regularly check tightened and connected parts to maintain safe operation.

Store In A Dry Place

When not in use, store the LM55 in a dry place. Do not store it in hot, humid, or non-ventilated environments.

Key Features

Key Features

LM55 combines a large pipe clamp, real-time temperature display, waveform recording, historical data browsing, adjustable screen settings, and compact two-button operation for pipe temperature service work.

Large Clamp Design

The clamp is designed for pipe temperature measurement and supports applicable pipe diameters under 40mm.

Real-Time Temperature Reading

Live numerical display mode shows current temperature data directly, helping technicians read pipe temperature quickly.

Temperature Waveform Display

The waveform mode shows temperature changes over time, making it easier to observe heating or cooling trends.

History Data Viewing

The LM55 can store 8 sets of waveform data. Each set records up to 150 seconds and can be browsed later.

Adjustable Brightness

Backlight brightness can be adjusted from 0 to 100, helping the screen remain readable in different service environments.

High-Definition Color Screen

The 0.96-inch TFT-LCD color screen with 80 RGB × 160 dots resolution displays temperature, waveform, setup, and record information.

℃ / ℉ Unit Switching

Temperature units can be switched between Celsius and Fahrenheit in the setup interface.

Chinese / English Language

The system supports Chinese and English language options for different users and service environments.

Warranty Support

AUTOOL provides a 3-year warranty for the main unit and a 1-year warranty for included accessories under eligible warranty conditions.

AUTOOL LM55 feature image showing precision sensor real-time temperature waveform history and color screen Click to enlarge
Specifications

AUTOOL LM55 Product Specifications

The LM55 digital temp clamp uses a 4.5V AAA battery power supply, a 0.96-inch TFT-LCD screen, two-button control, and waveform data storage for pipe temperature measurement.

Core Specifications
ProductAUTOOL LM55 Digital Temp Clamp / Pipe Clamp Temperature Meter
ApplicationHVAC, refrigeration, and automotive A/C pipe temperature checks
Recommended Product-Page Testing LimitBelow 150°C; do not clamp high-temperature adding points
Manual Measurement Range-50°C to 260°C listed in the user manual
Applicable Measurement Diameter<40mm
Rated Operating Voltage4.5V, 3 × AAA batteries
Operating Current<30mA
Standby Power Consumption<500uA
Display0.96-inch TFT-LCD with backlight
Screen Resolution80 RGB × 160 dots
ButtonsToggle button and Enter button
Casing MaterialPA6-GF45
Button MaterialSilicone gel
Hardware Parts MaterialStainless steel and copper
Product Dimensions178 × 100mm
Outer Box Dimensions123 × 54 × 215mm
Display And Data Functions
Live Numerical DisplayDisplays current temperature data in numerical form in real time
Waveform DisplayDisplays a temperature/time curve for real-time variation tracking
History Records8 sets of waveform data
Record Duration150 seconds per waveform set
Temperature Units℃ / ℉ switchable
Brightness0-100 adjustable display brightness
LanguagesChinese and English
Standby BehaviorEnters standby after no user activity or after 8 waveform sets have been collected for more than 5 minutes
ReminderBuzzer sounds for 15 seconds after 8 waveform data sets are completed
Warranty
Main Unit Warranty3 years from receipt date under eligible warranty conditions
Included Accessories Warranty1 year from receipt date under eligible warranty conditions
Core Specifications
ProductAUTOOL LM55 Digital Temp Clamp
ApplicationHVAC / refrigeration / automotive A/C pipe temperature checks
Recommended LimitBelow 150°C; avoid high-temperature adding points
Manual Range-50°C to 260°C
Pipe Diameter<40mm
Power4.5V, 3 × AAA batteries
Display0.96-inch TFT-LCD, 80 RGB × 160 dots
Records8 sets, 150 seconds per set
Units℃ / ℉ switchable
Warranty3 years main unit, 1 year accessories
Applications

Applications

Use LM55 for suitable pipe temperature checks in HVAC, refrigeration, and automotive air-conditioning service. Keep the clamp within its pipe diameter and safe temperature limits.

HVAC Pipe Temperature Checks

Suitable for checking pipe temperature during heating, ventilation, and air-conditioning maintenance work.

Automotive A/C Service

Helps monitor line temperature during automotive air-conditioning inspection and diagnosis.

Refrigeration Maintenance

Useful for observing temperature changes on suitable refrigeration and cooling system pipes.

How To Use

How To Use

LM55 uses two buttons for power, confirmation, switching, waveform viewing, unit settings, brightness adjustment, and language setup.

Install Batteries

Install 3 × AAA batteries. Long-press the Enter button for 2 seconds to power on the device.

Clamp The Pipe

Clamp a suitable pipe under 40mm diameter. Avoid high-temperature adding points and unstable contact surfaces.

Read Live Temperature

Use the Test icon to enter live numerical display mode and view the current pipe temperature.

View Waveform And Records

Use Wave mode to view real-time temperature/time curves and browse historical waveform records.

Adjust Settings

Use Setup to switch ℃ / ℉, adjust brightness, and select Chinese or English language.

Use Notes

  • Do not force the clamp onto pipes larger than 40mm.
  • Do not use the clamp on high-temperature adding points.
  • For routine customer-facing use, keep pipe testing below 150°C.
  • Pressing Enter can pause and resume real-time waveform recording.
  • After 8 waveform records are completed, the device stops storing and reminds the user with a beep.
Manual And Downloads

Manual And Downloads

Download the LM55 user manual for specifications, function descriptions, operation instructions, button descriptions, display descriptions, maintenance, warranty, and return service information.

AUTOOL LM55 User Manual preview Click to enlarge

AUTOOL LM55 User Manual

Open the PDF manual to check LM55 setup, buttons, temperature display modes, waveform recording, language settings, brightness settings, maintenance, and warranty details.

Download Manual

Need Confirmation Before Ordering?

Contact AUTOOL Store if you need help confirming pipe diameter, temperature range, battery setup, HVAC usage, automotive A/C application, warranty, or related tool selection.

Emailsupport@autoolstore.com WhatsApp+86 189 2647 7404
Related Products

Related Products

Compare LM55 with related AUTOOL HVAC measuring tools and digital manifold gauges. These tools are related service options, not direct LM55 feature variants.

Questions And Answers

These answers cover LM55 pipe temperature measurement, pipe diameter, safe temperature use, waveform records, batteries, screen settings, warranty, and support.

Warranty And Contact

Warranty And Contact

For LM55 pipe diameter confirmation, temperature range questions, HVAC or automotive A/C usage, manual help, warranty support, or related LM-series tool selection, contact AUTOOL Store directly.

Pre-Sales And Product Support

Use support if you need help confirming whether LM55 is suitable for your pipe size, temperature condition, refrigeration service task, automotive A/C application, or related HVAC measuring tool selection.

  • Pipe diameter and temperature condition confirmation
  • HVAC, refrigeration, and automotive A/C use explanation
  • Manual download and operation guidance
  • Battery setup, brightness, unit, and language setting help
  • Warranty support for eligible cases
  • Related LM55 / LM120 / LM120+ / LM150 / LM160 product selection
Email Supportsupport@autoolstore.com WhatsApp Support+86 189 2647 7404

Customer Reviews

  1. 5
    (5 customer reviews)
    100% of customers recommend this product.
    5 Stars100%4 Stars0%3 Stars0%2 Stars0%1 Star0%

  2. JP –

    This works great for a quick check of the inlet and outlet temperatures of AC units. It is more accurate than the gauge type with a clip on the side, and is quick reading.

    0 of 0 found this review helpful

  3. Bernie Boswell –

    Muy pr¨¢ctico y hace bien su trabajo est¨¢ bueno soy t¨¦cnico y garantiz¨®

    0 of 0 found this review helpful

  4. Angelos Platis –

    The product matches the description. A discount was applied, making the price affordable. Shipping was fast. The product works well and is accurate. Excellent!

    0 of 0 found this review helpful

  5. Karolis Palavinskas –

    Fast shipping. The product is of good quality; I’ve used one before but it was damaged by flooding, so I ordered another. It has a digital display for clear temperature readings.

    0 of 0 found this review helpful

  6. Ben Kerr –

    A clamp-type thermometer can be used to measure the surface temperature of refrigerant pipes. It works well, has a nice color display, and can be adjusted to save operating parameters.

    0 of 0 found this review helpful
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LM55 Temp Clamp Hvac Temp Clamp
AUTOOL LM55 Temp Clamp Hvac Temp Clamp

US$45.00

Add to cart This product has multiple variants. The options may be chosen on the product page