Fits standard test tubes 16×50 mm or larger.

• Flat tip probe for meat, leather, paper, skin, and other surface pH measurements
• Highly stable and accurate readings with a large LCD display
• Designed for simple one-hand operation
• Features hold function, and auto power off with low battery indicator

Automatically calibrates to pH 4, 7 and 10 buffers and can be adjusted to recognize some other non-standard buffers as well.

The case is IP 65 waterproof and will float if accidentally dropped into the water.