WiFi Signal 4.5.2 – Monitor and troubleshoot the quality of your Wi-Fi connection

WiFi Signal is a system menu bar application that provides easy access to your Wi-Fi connection details (name, channel, transmit rate, signal strength, noise, etc.), monitors the signal quality of your wireless network, and can find and recommend alternative channels for your network thus avoiding signal overlapping and channel conflicts that can result in connectivity issues and performance degradation.
 
Features

Simple, straightforward user interface
Accurate dBm to percentage conversion
Real-time signal strength and noise level graph
Signal quality ratings based on Signal-to-Noise Ratio (SNR) measurements
Automatic channel recommendations
Comprehensive app’s help describes how to use the tool the most effective way