My old pump protector was about 30 years old and was periodically shutting off the pump. There are no lights on that model so I couldn't tell what condition it sensed to make it shut the pump down. So, I bought the SymCom PumpSaver Plus and now the pump runs whenever there is a call for water and the water gushes forth. And if it ever needs to shut it down, the LEDs and the IR feature can tell me why. It was shipped quickly. The price was right. It was very easy to install.