When deciding between a dial and LCD display on a pH meter, consider the level of accuracy and precision you need for your testing. Dial displays typically show a more analog, intuitive readout, but may be less precise than LCD displays which often feature digital readings with higher resolution. If high-accuracy measurements are crucial in your application, an LCD display might be preferable. On the other hand, if you prioritize ease of use and a more traditional feel, a dial display could suit your needs.It's also worth noting that many pH meters on Amazon.com come equipped with both types of displays or offer them as separate options, allowing you to choose the one best suited for your specific testing requirements.