Guangzhou Master Automobile Tech. Co., Ltd.
Main products:OBD scan tool,LED light,auto battery charger,auto diagnostic tool,aic recovery machine
Contact Us
  • Contact Person : Ms. Zheng Aimee
  • Company Name : Guangzhou Master Automobile Tech. Co., Ltd.
  • Tel : 86-020-28276835
  • Fax : 86-020-28276835
  • Address : Guangdong,Guangzhou,Room 906, No. 1400 Baiyun Da Dao North, Baiyun District, Guangzhou
  • Country/Region : China

Spark plug tester MST-880

Spark plug tester MST-880
Product Detailed
1. 12V linear regulator 2. Operating Manual

1.a high-voltage detector 2. has good plug and bad plug

 1. Precautions

1.1 The product is a high-voltage detector, so when the detectors are not in use, be sure to take the battery out to avoid danger.

1.2  If the discontinuous state appears in the process of using, that is normal, please loosen the switch with 3 seconds, you can continue to use.

Compared with MST770, this one has two testers, one is for good plug, another one is for bad, user could compare the difference

2.Feature Locations3.Test Principle

In automobile ignition system, the high-voltage ignition coil generates a high-voltage (10,000 volts or more), and the spark plug diverts it from high-tension ignition coil into the cylinder engine, spark between the spark plug electrodes will ignite the mixture. The detector could tell the good spark plugs from the bad by the strength of the spark.

4.Test Method1).Place the spark plug on the pedestal;2).Power-on;3).Press the key switch, the red LED will illuminate and the good spark plug will generate a strong spark and the bad will generate a faint one or not.4). Loosen the key switch, take the spark plug down the tester by pinching the bottom of it.

5.    Accessories    


1. 12V linear regulator

2. Operating Manual

Spark plug tester MST-880

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