The 1/32 DIN PM Legacy incorporates Bluetooth wireless technology, the first of its size to do so, according to the manufacturer. The wireless connection technology can be used to enable EZ-Link, a proprietary mobile app for setting up, monitoring and adjusting the company’s PM Plus and PM Legacy controllers. The panel-mount, PID controllers offer optimal performance utilizing simple control and menu functionality without complex features. The PM Legacy controllers include one universal input and an option for up to two outputs. They have an ergonomic, seamless keypad to eliminate contamination points on the front of the controller.