Tests pH of any soil, sand, clay or peat. Does 200 tests. Triplex indicator solution produces distinct shades of colour over all ranges of the pH scale. Eliminates errors by use of inert, white powder to draw the reagent from soil to its surface for comparison. Accurate colour comparisons with laminated colour chart supplied. Supplied with instructions to correct improper soil pH conditions. Dimensions: 5”W x 3”L x 4”H.