Vernier Caliper Digital 150mm Precision Measuring Tool for Accurate Results how to check ro water purity at home students not only gain practical students not only gain practical knowledge but also cultivate a greater appreciation for the intricacies of life and matter at the microscopic level The digital display provides a clear readout of the current temperature Vernier Caliper Digital 150mm large lcd display with dept gauge bar 4 way measurement inside outside height depth with hard plastic box for convenient storage extra button battery lr 44 with fine adjustment roller used for precision measuring in : mm and inches digital vernier caliper 6 inch 150 mm range :0 150 mm accuracy : + 0 Vernier Caliper Digital 150mm