Well, this supply of sensor sticks were gone within 3 hrs of the posting. Nasim is taking pre-orders for the next set so if you had any inclining of picking one up, I'd suggest putting in an order now.
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Marcel, I think that's a great idea but you might consider getting an original in hand before you attempt to mimic one. In theory, this sensor stick could last several years, assuming normal use patterns, and would make the initial $40 investment seem very reasonable. But we'll see. I'll report my findings and give a full review when it arrives.