This thing can't read or write, and it hasn't said over 3 or 4 words since we've been selling it. Math? Don't think so!
I think 'smart' is referring to the buyer.
And, These are not your typical little sissy probes.
They are Rugged, Heavy Duty STEEL, ready for a day's work.
The Smart Stick is a heavy duty, steel soil probe which resists bending and is designed for easy penetration and withdrawal. The yellow handles are designed for comfort and high visibility. Models up to 54" in length now include a 3/8" Hex rod that is approximately 20% stiffer than the previous round rod. Models with 60", 66 or 72" shafts include the 7/16" hex rod.
Be SMART. Buy a Smart Stick!