Test Tube pH Pen

Highly stable and accurate readings with a large LCD display. Designed for simple one-hand operation. Automatically calibrates to pH 4, 7 and 10 buffers and can be adjusted to recognize any buffer. Features hold function, and auto power off with low battery indicator. The case is IP65 waterproof and will float if accidentally dropped into the water. Supplied with 2 button-cell batteries and a built-in electrode that is kept moist with a protective cap. Range: 0 - 14 Resolution: 0.1 Accurancy: ±0.2 Dimensions: 9 1/4 x 1 Inches Probe Dimensions: 4 3/4 x 1/2 Inches Weight: 2.5 Ounces Fits test tubes 16 x 50mm or larger Accurate and reliable Large LCD display Works with buffers CE MarkedShipping Weight: 0.3801 lbsShipping Dimensions: 12.00 x 3.00 x 2.00Research or further manufacturing use only, not for food or drug use.