Major tech MT222, Instruction Manual

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2. Wear the unit to the outer side of forearm with the sensing side 

faces outwardly.

The effect is best when the sensing side is facing high voltage in 
right angle (90°). When it is worn at the inner side of arm or is 
covered by cloth, the sensitivity is poor. 

5. CLEANING & REPLACING BATTERY

5.1. Sensing side shall maintain clean. 

The case may be cleaned with soft fabric and mild detergent. No 
solvent or corrosive agent may be used.

5.2. Replacing battery

1. When the sound become weak, the battery shall be replaced.

2. Use coin to open battery cover and remove used battery. Place 

new battery into slot with the battery positive (+) face up and 
fasten battery cover with coin.

6. CAUTIONS 

1. This instrument is an auxiliary testing unit and is only for obtaining 

warning as additional protection. Never use this instrument as 
substitution for Tester. Electrical Test shall be the prime electric 
testing instrument.

2. Other than affected by now you wear, the sensing and warning 

distance may be influenced by direction of electric article, ambient 
environment, shielding objects and weather conditions.

3. Buzzer has inner water-proof film. Do not pierce it with sharp 

article.