How often do you use your pH meter? If you do sequential measurements over time, then here's good news for you: Metrohm combines wireless technology to automatically transmit your pH readings to your printer and PC via IrDa interface. High resolution, (0.001pH), automatic temperature compensation and a large internal memory for data translate to accurate and hassle-free pH measurements anytime, anywhere. There are two models available: pH mobile 826, which is battery operated and is therefore ideal for field measurements, and pH lab 827, a robust mains operated option.