A Signal Strength Meter is a device used to measure the strength of a signal, typically in telecommunications. It helps users determine how well a device, such as a smartphone or a Wi-Fi router, can receive and transmit signals. The meter displays the signal strength in various units, often as a percentage or in decibels (dBm), allowing users to assess the quality of their connection. These meters are essential for troubleshooting connectivity issues and optimizing network performance. They can be used for various types of signals, including cellular networks, Wi-Fi, and satellite communications. By identifying weak spots, users can improve their overall communication experience.