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- personal F1
Yeah... it's a bit pricey, showing a retail of 145$ ish... but I think it just went to the top of my list... they do have fine gear! The A8 is just a quickie tester IMO, and at +/-0.2 it's usually close enough,... of course it works on entirely different principles, and so isn't the best for sheer accuracy, there are some plain limitations on such a design! ANd there are some definite tricks to getting good readings,.... slurry is a good way to go, but the draw back is that PITA factor, and the damage it does to roots getting into the prime root zone,...