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Troubleshooting & Safety: Simply insert the detection pin into an AC power connector or position it near an AC cable. 1 x Test Pen. 5-speed Sensitivity Adjust: Press the "S" button to adjust sensitivity, easily adjustable in 5 gears Default first gear upon startup: lowest sensitivity, fifth gear: highest sensitivity.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.