but a handheld meter is ideal for the most accurate results. While there are only two types of light to measure (incident and reflective), there are three types of meters a photographer can use ...

The hardware used here is a special USB dongle. This has a 900 MHz radio which picks out the packets from a reasonably large list of meter types, and pushes them through the USB interface.

Moisture levels in sand play a critical role in construction and manufacturing. Too much water can weaken concrete, while too ...

A common problem occurs when a city or municipality uses two different types of flowmeters. Imagine one meter is a highly accurate magnetic flowmeter located in a meter vault to monitor the plant’s ...