PH متر پوستDesigned to bring simplicity to pH testing of flat surfaces, the HI99181 Skin pH Portable Meter is designed for surface measurements. The specialized HI14143/50 probe features a glass body, flat tip, and open junction making it ideal for the non-destructive pH testing of skin surfaces. ±0.02 pH accuracy Comes with all the necessary solutions and batteries- everything you need to get started measuring right away. Specialized for the direct pH measurement of skin and scalp.