pH Pen with Large LCD Display Nests & Slats A Food Grade Clear Grease

A Food Grade Clear Grease / PTFE Aerosol

which cleverly avoids paper wastage

Metal housing

This is sticky string

The lower dimensions are:

pH Pen with Large LCD Display Nests & Slats A Food Grade Clear GreasepH Pen with Large LCD Display Image shows 3 displays available, this price is for one Pen. Highly stable and accurate readings with large LCD display Designed for simple one hand operation Automatically calibrates to pH 4, 7, 10 buffers and can be adjusted to recognize non standard buffers as well Features hold function, and auto power off with low battery indicator The case is IP65 water proof, and will float if accidentally dropped into the water