The MST-101 Auto Ignition Coil Tester is a portable, non-intrusive diagnostic tool used to quickly verify the functionality of automotive ignition systems and other electronic components without dismantling them. It uses electromagnetic induction to collect and analyze signals, providing feedback via an integrated LED indicator and an audible beeper.
Key Features & Capabilities
Non-Intrusive Testing: Allows you to check components simply by placing the sensing tip near them while the engine is running or cranking.
Wide Detection Range: In addition to ignition coils (traditional, double spark, and single spark), it can test:
Generators and fuel injectors.
Electric-magnetic and emission gas control valves.
Internal fan motors, Hall sensors, and electric relays.
Adjustable Sensitivity: Features a mode switch with two sensitivity levels:
Level II: Used for normal testing.
Level III: Used for environments with strong magnetic fields.
Smart Indicators: A flashing LED and a steady beeper indicate that the component is working normally. If no beeping or flashing occurs, the part may be faulty, shorted, or disconnected.
Safety & Durability: Made from high-quality aluminum with a rugged ABS head, it is designed to protect users from electric shocks by avoiding direct contact with high-voltage plug wires.
Technical Specifications
Feature Details
Power Source2 x 1.5V AAA Batteries (typically not included)
MaterialAluminum body with ABS plastic head
SizeApproximately 15cm x 2cm (5.9in x 0.79in)
Indicators Blue LED sensing tip and an internal audible buzzer
Special FunctionStandby and wakeup function to conserve battery (auto-off after ~20 seconds of no signal)
Basic Operation Guide
Preparation: Install two AAA batteries and turn the device on.
Select Mode: Set the switch to Level II for most standard tests.
Positioning: Approach the tip of the pen to the electronic component (e.g., the ignition coil).
Observe Results: A flashing light and a beep confirm the part is generating a proper signal. No response indicates a likely fault.
Would you like to compare this to inline spark testers or see a list of common car models compatible with this tool?
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