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Electron Microscopy Sciences pH Pens Large Display, 2-12 range

Supplier: Electron Microscopy Sciences 7069301
These pH pens provide highly stable and accurate readings with a large LCD display. Designed for simple one-hand operation. Automatically calibrate to pH 4, 7, 10 buffers and can be adjusted to recognize non-standard buffers as well. They offer unbeatable solutions for applications such as waste-water, surface water, aquaculture, hydroponics, pools, and education.
Each has a hold function and auto power off with low battery indicator. The cases are IP65 waterproof. They come with 4 button-cell batteries and a built-in electrode kept moist with a protective cap.
Range: 2-12
Accuracy: ±0.3 pH
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