Selecting pH controllers requires an analysis of user interface options. There are three basic types of displays. Analog meters or gauges use needles or simple visual indicators. Digital readouts are ...

pH meters are electric appliances used for measuring the- alkalinity or acidity of a solution. pH is measured using potentiometric methods or pH indicators such as indicator solutions or strips ...

The most accurate method of determining soil pH is by a pH meter. A second method which is simple and easy but less accurate then using a pH meter, consists of using certain indicators or dyes. Many ...

The image at right shows the pH scale labeled with common substances. pH measurements are typically conducted using a pH meter. This device uses a glass electrode connected to an electronic meter. pH ...

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A group of Dutch scientists have been testing out some of today’s “smart” electrical meters to check their accuracy, among other things. Not ones to disappoint, the scientists have found ...

Help us keep bring these critical stories to light. Your support makes all the difference. Aquarium enthusiasts in China were left shocked when they discovered that a much-hyped giant whale shark ...

A frequent example that appears in projects on Hackaday is the reading of utility meters, and in that arena [jomjol] has a very neat solution involving an ESP32 camera module and a software neural ...

With endless plant choices, it can be hard to know which of the best indoor plants to pick. But if you're looking for ...

China's Xiaomeisha Sea World aquarium is facing widespread criticism ... the largest confirmed whale shark measured 18 meters. To replicate this majestic creature, Xiaomeisha SeaWorld invested ...

Why they're awesome: The largest animal on Earth is thought to be the blue whale, but these strange sea creatures can grow ...