Easy to carry, simple to operate and sufficient for most field pH tests.

• 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, 10 buffers and can be adjusted to recognize non-standard buffers as well. The case is IP65 waterproof, and will float if accidentally dropped into the water.

Large Display pH Pen: Has a Range of 2 to 12 with an Accuracy of ±0.3 pH and is the perfect instrument for economical spot sampling of pH.

Large Display ATC pH Pen: Has a Range of 0 to 14 with an Accuracy of ±0.2 pH and is the right instrument for spot sampling of pH and temperature. Displays temperature in both °C and °F.

Large Display ATC 0.01 pH Pen: Has a Range of 0 to 14 with an Accuracy of ±0.05 pH and is the ideal instrument when you need laboratory accuracy in the field for sampling of pH and temperature. Displays temperature in both °C and °F.