A Lab In Your Pocket Measuring leaf and fruit sap ions with meters like the HORIBA LAQUAtwin is extremely important for all fruits and some vegetables. Sap measurements give a snapshot of the actual nutrients moving in the plant, not just what’s in the soil.Soil tests alone are insufficient because nutrient availability can change daily based on water uptake, growth stage, and environmental stress. The LAQUAtwin meters can measure K⁺, NO₃⁻, Ca²⁺, Na⁺, pH and EC in fruits, leaves, soil and water.. without leaving the field or having to wait for lab results. How It Works HORIBA's unique compact meter integrates the electrode, display and sample container to enable simple, effective on-site testing by direct measurement from a single drop. The LAQUAtwin 4M Kit has the Na-11, K-11, NO3-11 and Ca-11 meters in a handy carrying case (1300077785) with batteries, wash bottle, 2 pipettes, manual and calibration solutions. Together with the Laqua Twin pH and EC meters (not included in this kit, but available separately), it enables the user to accurately measure the important variables in the sap of growing plants.(The carry case has slots to accommodate 3 more meters.) The only pocket meter that can directly measure nutrients in 0.3ml sample (or 0.05ml sample with sampling sheet B). Specially designed for plant sap, the unique sensor allows measurement of viscous liquids, solids, and even powder samples. No need for a beaker to calibrate your meter or measure a sample. Just place few drops of the standard or sample onto the flat sensor. This procedure saves you time and prevents wasting your precious sample. Wide measurement range for all variables. Accuracy 10% of actual value. 20% of actual value in the case of Ca. Supplied with 150 and 2000 ppm Standard solutions (14ml each), 20 x sampling sheet B, 2 x CR2032 batteries for each meter, dropper, instruction and quick manual.
