The Checkit pH & CF / EC meters are truly the most rugged glass type EC-testers to get. They are resistant to attack, temperature compensating and easy to calibrate. The devices are also waterproof, making them easy to wash off. Even if the meter accidentally falls into the water, it will float so that it can be picked without damaging the electronics. Directly out

The meters cost less per test than competitive testers of high quality. Meters have a lifespan of 1-3 years, depending on the test frequency. (The devices can do at least 365 accurate pH measurements.)

The meters have an energy-saving feature that the tester expands when not in use. To ensure that values are always accurate, the device shows a low-battery symbol to alert the user to be replaced before degrades the accuracy of important values the batteries.