{"id":41592,"date":"2024-02-22T16:05:07","date_gmt":"2024-02-22T08:05:07","guid":{"rendered":"https:\/\/shop.autooltech.com\/?post_type=product&p=41592"},"modified":"2026-05-10T21:06:58","modified_gmt":"2026-05-11T04:06:58","slug":"autool-lm55-temp-clamp-hvac-temp-clamp","status":"publish","type":"product","link":"https:\/\/autoolstore.com\/ro\/product\/autool-lm55-temp-clamp-hvac-temp-clamp\/","title":{"rendered":"AUTOOL LM55 Temp Clamp Hvac Temp Clamp"},"content":{"rendered":"
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AUTOOL LM55<\/div>\n

Product Overview<\/h2>\n

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.<\/p>\n

\n Pipe Temp Clamp<\/span>\n <40mm Pipe Diameter<\/span>\n Real-Time Reading<\/span>\n Waveform History<\/span>\n <\/div>\n
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0.96″<\/span>Color Screen<\/span><\/div>\n
8 Sets<\/span>History Records<\/span><\/div>\n
150s<\/span>Per Record<\/span><\/div>\n
3 Years<\/span>Main Unit Warranty<\/span><\/div>\n <\/div>\n <\/div>\n
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\n \"AUTOOL\n \n Click to enlarge<\/span>\n <\/figure>\n
\n \"AUTOOL\n \n Click to enlarge<\/span>\n <\/figure>\n <\/div>\n <\/div>\n <\/section>\n\n
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Before You Order And Use<\/div>\n

Before You Order And Use<\/h2>\n

Before using the LM55 HVAC temperature clamp, confirm the pipe diameter, temperature condition, battery setup, and safe storage environment.<\/p>\n <\/div>\n

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Avoid High-Temperature Adding Points<\/h3>\n

Do not place the clamp on high-temperature adding points or unsafe heating positions. For routine product-page use, keep pipe testing below 150\u00b0C.<\/p>\n <\/article>\n

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Check Pipe Diameter First<\/h3>\n

LM55 is suitable for pipes under 40mm diameter. Do not force the clamp onto oversized or irregular surfaces.<\/p>\n <\/article>\n

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Use 3 \u00d7 AAA Batteries<\/h3>\n

The device uses a 4.5V power supply from three AAA batteries. Install batteries correctly before powering on.<\/p>\n <\/article>\n

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Keep The Clamp Surface Stable<\/h3>\n

For more consistent readings, clamp the sensor firmly on a clean pipe surface and avoid loose contact during measurement.<\/p>\n <\/article>\n

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Protect The Housing<\/h3>\n

Avoid rubbing the product against rough surfaces. Regularly check tightened and connected parts to maintain safe operation.<\/p>\n <\/article>\n

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Store In A Dry Place<\/h3>\n

When not in use, store the LM55 in a dry place. Do not store it in hot, humid, or non-ventilated environments.<\/p>\n <\/article>\n <\/div>\n <\/section>\n\n

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Key Features<\/div>\n

Key Features<\/h2>\n

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.<\/p>\n <\/div>\n

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Large Clamp Design<\/h3>\n

The clamp is designed for pipe temperature measurement and supports applicable pipe diameters under 40mm.<\/p>\n <\/article>\n

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Real-Time Temperature Reading<\/h3>\n

Live numerical display mode shows current temperature data directly, helping technicians read pipe temperature quickly.<\/p>\n <\/article>\n

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Temperature Waveform Display<\/h3>\n

The waveform mode shows temperature changes over time, making it easier to observe heating or cooling trends.<\/p>\n <\/article>\n

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History Data Viewing<\/h3>\n

The LM55 can store 8 sets of waveform data. Each set records up to 150 seconds and can be browsed later.<\/p>\n <\/article>\n

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Adjustable Brightness<\/h3>\n

Backlight brightness can be adjusted from 0 to 100, helping the screen remain readable in different service environments.<\/p>\n <\/article>\n

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High-Definition Color Screen<\/h3>\n

The 0.96-inch TFT-LCD color screen with 80 RGB \u00d7 160 dots resolution displays temperature, waveform, setup, and record information.<\/p>\n <\/article>\n

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\u2103 \/ \u2109 Unit Switching<\/h3>\n

Temperature units can be switched between Celsius and Fahrenheit in the setup interface.<\/p>\n <\/article>\n

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Chinese \/ English Language<\/h3>\n

The system supports Chinese and English language options for different users and service environments.<\/p>\n <\/article>\n

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Warranty Support<\/h3>\n

AUTOOL provides a 3-year warranty for the main unit and a 1-year warranty for included accessories under eligible warranty conditions.<\/p>\n <\/article>\n <\/div>\n\n

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\n \"AUTOOL\n \n Click to enlarge<\/span>\n <\/figure>\n <\/div>\n <\/section>\n\n
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Specifications<\/div>\n

AUTOOL LM55 Product Specifications<\/h2>\n

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.<\/p>\n <\/div>\n\n

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Core Specifications<\/td><\/tr>\n
Product<\/td>AUTOOL LM55 Digital Temp Clamp \/ Pipe Clamp Temperature Meter<\/td><\/tr>\n
Application<\/td>HVAC, refrigeration, and automotive A\/C pipe temperature checks<\/td><\/tr>\n
Recommended Product-Page Testing Limit<\/td>Below 150\u00b0C; do not clamp high-temperature adding points<\/td><\/tr>\n
Manual Measurement Range<\/td>-50\u00b0C to 260\u00b0C listed in the user manual<\/td><\/tr>\n
Applicable Measurement Diameter<\/td><40mm<\/td><\/tr>\n
Rated Operating Voltage<\/td>4.5V, 3 \u00d7 AAA batteries<\/td><\/tr>\n
Operating Current<\/td><30mA<\/td><\/tr>\n
Standby Power Consumption<\/td><500uA<\/td><\/tr>\n
Display<\/td>0.96-inch TFT-LCD with backlight<\/td><\/tr>\n
Screen Resolution<\/td>80 RGB \u00d7 160 dots<\/td><\/tr>\n
Buttons<\/td>Toggle button and Enter button<\/td><\/tr>\n
Casing Material<\/td>PA6-GF45<\/td><\/tr>\n
Button Material<\/td>Silicone gel<\/td><\/tr>\n
Hardware Parts Material<\/td>Stainless steel and copper<\/td><\/tr>\n
Product Dimensions<\/td>178 \u00d7 100mm<\/td><\/tr>\n
Outer Box Dimensions<\/td>123 \u00d7 54 \u00d7 215mm<\/td><\/tr>\n
Display And Data Functions<\/td><\/tr>\n
Live Numerical Display<\/td>Displays current temperature data in numerical form in real time<\/td><\/tr>\n
Waveform Display<\/td>Displays a temperature\/time curve for real-time variation tracking<\/td><\/tr>\n
History Records<\/td>8 sets of waveform data<\/td><\/tr>\n
Record Duration<\/td>150 seconds per waveform set<\/td><\/tr>\n
Temperature Units<\/td>\u2103 \/ \u2109 switchable<\/td><\/tr>\n
Brightness<\/td>0-100 adjustable display brightness<\/td><\/tr>\n
Languages<\/td>Chinese and English<\/td><\/tr>\n
Standby Behavior<\/td>Enters standby after no user activity or after 8 waveform sets have been collected for more than 5 minutes<\/td><\/tr>\n
Reminder<\/td>Buzzer sounds for 15 seconds after 8 waveform data sets are completed<\/td><\/tr>\n
Warranty<\/td><\/tr>\n
Main Unit Warranty<\/td>3 years from receipt date under eligible warranty conditions<\/td><\/tr>\n
Included Accessories Warranty<\/td>1 year from receipt date under eligible warranty conditions<\/td><\/tr>\n <\/tbody>\n <\/table>\n <\/div>\n\n
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\n Core Specifications<\/summary>\n
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Product<\/span>AUTOOL LM55 Digital Temp Clamp<\/strong><\/div>\n
Application<\/span>HVAC \/ refrigeration \/ automotive A\/C pipe temperature checks<\/strong><\/div>\n
Recommended Limit<\/span>Below 150\u00b0C; avoid high-temperature adding points<\/strong><\/div>\n
Manual Range<\/span>-50\u00b0C to 260\u00b0C<\/strong><\/div>\n
Pipe Diameter<\/span><40mm<\/strong><\/div>\n
Power<\/span>4.5V, 3 \u00d7 AAA batteries<\/strong><\/div>\n
Display<\/span>0.96-inch TFT-LCD, 80 RGB \u00d7 160 dots<\/strong><\/div>\n
Records<\/span>8 sets, 150 seconds per set<\/strong><\/div>\n
Units<\/span>\u2103 \/ \u2109 switchable<\/strong><\/div>\n
Warranty<\/span>3 years main unit, 1 year accessories<\/strong><\/div>\n <\/div>\n <\/details>\n <\/div>\n <\/section>\n\n
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Applications<\/div>\n

Applications<\/h2>\n

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.<\/p>\n <\/div>\n

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HVAC Pipe Temperature Checks<\/h3>\n

Suitable for checking pipe temperature during heating, ventilation, and air-conditioning maintenance work.<\/p>\n <\/article>\n

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Automotive A\/C Service<\/h3>\n

Helps monitor line temperature during automotive air-conditioning inspection and diagnosis.<\/p>\n <\/article>\n

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Refrigeration Maintenance<\/h3>\n

Useful for observing temperature changes on suitable refrigeration and cooling system pipes.<\/p>\n <\/article>\n <\/div>\n <\/section>\n\n

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How To Use<\/div>\n

How To Use<\/h2>\n

LM55 uses two buttons for power, confirmation, switching, waveform viewing, unit settings, brightness adjustment, and language setup.<\/p>\n <\/div>\n\n

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Install Batteries<\/h3>\n

Install 3 \u00d7 AAA batteries. Long-press the Enter button for 2 seconds to power on the device.<\/p>\n <\/article>\n

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Clamp The Pipe<\/h3>\n

Clamp a suitable pipe under 40mm diameter. Avoid high-temperature adding points and unstable contact surfaces.<\/p>\n <\/article>\n

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Read Live Temperature<\/h3>\n

Use the Test icon to enter live numerical display mode and view the current pipe temperature.<\/p>\n <\/article>\n

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View Waveform And Records<\/h3>\n

Use Wave mode to view real-time temperature\/time curves and browse historical waveform records.<\/p>\n <\/article>\n

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Adjust Settings<\/h3>\n

Use Setup to switch \u2103 \/ \u2109, adjust brightness, and select Chinese or English language.<\/p>\n <\/article>\n <\/div>\n\n

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Use Notes<\/h3>\n