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Title: sigma PC 15 watch
Review: This was the first product that I purchase off of the internet that I felt is JUNK! I can kick myself for throwing away the box. The chest ban the is use fails over 50% of the time. I e-mailed the mfg. and was told to water down the contacts. That worked for less then fifteen seconds and received a no signal read out on the watch. Do yourself a favor and go to consumer report let this company rate the product first before purchasing. I will sell this watch for $10.00 because that is the only module that works. BYER BE WARE!
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