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Red mechanic stethoscope MS-120 in box

LANDTEK

LANDTEK MS-120 Mechanic Stethoscope Electrician Tool

SKU CH-TTFY-K3M3Z MPN MS-120

Mechanic's stethoscope amplifies weak audio signals with a piezoelectric sensor to locate engine and machine noise sources

  • Labor warranty1 Year
  • Product typeTest Equipment
  • Color and finishRed
  • Number of items1 pack
  • Sold asBox
  • Parts warranty3 Years
  • Locates engine noise sources with sensitive piezoelectric sensor
  • Distinguishes normal from abnormal signals for accurate diagnostics
  • Amplifies weak audio signals to find hidden faults
  • Reduces troubleshooting time across automotive and industrial equipment
  • Includes 3-year parts coverage and 1-year labor protection

Purpose and user

The LANDTEK MS-120 is a mechanic’s stethoscope designed to amplify weak audio signals through a sensitive piezoelectric sensor. It helps technicians distinguish normal from abnormal sounds and pinpoint their exact location. The tool suits professional mechanics, electricians and plant engineers who need low-cost acoustic diagnostics across ships, vehicles and industrial machinery.

Suitable and unsuitable users

This stethoscope fits users who want fast, portable noise localisation for bearings, gears, pistons, gaskets or dashboard rattles. It is not intended for buyers who require electronic data logging, frequency analysis or wireless transmission of the captured audio. Teams needing calibrated decibel readings or software integration should consider dedicated vibration analysers instead.

Pre-purchase checks

Verify that the probe tip and tubing length reach the test points on your specific equipment before ordering. Confirm that the operating environment falls within the sensor’s temperature and moisture limits for reliable signal pickup. Ensure you have a quiet enough workspace to hear the amplified output clearly during diagnosis.

How it compares

Measured against everything we stock in Electrical Trade Tools & Kits, at today’s prices. Recalculated every night.

Price $142.99
Pricier than about 66% of the 5,006 comparable items (median $95.99).

Specifications

Product
Brand nameLANDTEK
Model nameMS-120
Product typeTest Equipment
Color and finishRed
In the box
Number of items1 pack

Questions about this item

Does the MS-120 need batteries or an external power source to operate?

The stethoscope uses a sensitive piezoelectric sensor that generates its own signal from vibration, so it works without batteries or an external supply.

Can the MS-120 be used on older vehicles with solid-lifter engines and carburettors?

Yes, the probe picks up mechanical noise from any rotating or reciprocating assembly, making it effective on vintage powertrains as well as modern ones.

How can I verify the MS-120 is amplifying correctly after I connect the probe?

Touch the probe to a known noisy component such as an idling engine accessory; a clear, amplified sound through the earpieces confirms the sensor and amplifier are functioning.

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