First year using it. Maybe 25 bucks at the local nursery. My employee/partner wanted it since he does all the landscape stuff (I started out just mowing since I work somewhere else full time).
But maybe it is wrong or off after reading these posts. But it does read and comes up w/ different readings on yards. All I know is we offer free soil testing....do it right in front of the customer. They love it....he adjusts the lime based off it and we've had no problems what-so-ever. Takes 5 min and we've only received compliments on our work and repeat customers.
SO....just throwing it out there because I really don't know that much about it.
Peace