EKG+ has added Bluetooth features: Turn on/off and set goal temp remotely with Acaia's Brewbar tablet app, Track and save recipes in Brewbar.
Stagg EKG is a variable temperature control electric kettle in a stunning, minimalist design. The pour-over, perfected. With PID controller; LCD display shows current and goal temp; HOLD option, Brew Stopwatch, Fahrenheit/Celsius Option.