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セキュリティセンサー Major tech MT403のPDF 取扱説明書をオンラインで閲覧またはダウンロードできます。Major tech MT403 8 ページ。 Non-contact ac voltage detector

6. Changing Batteries

1. Carefully unscrew battery cap at the rear (ﬂashlight end) of the tester.

2. Replace batteries with two AAA 1.5V batteries. Observe polarity.

3. Carefully align cover with tester as shown below.

4. Screw cover onto tester until it feels tight. Do not use excessive force.

5. Verify operation by using the tester on a known live AC voltage within

the deﬁned detection range of the tester.

NOTE: When batteries are loaded for the first time, please remove the

white, rectangular security strip before installing batteries.

NOTE: When replacing the batteries, be sure to secure the cap firmly to

maintain IP67 water and dust protection. A loose or over

tightened battery cap may compromise water and dust protection.