I recently bought a Hughes 30 amp surge protector, $100, which lacks the auto shutoff feature. The Hughes Power Watchdog provides voltage, current, watts, and total KWH power usage by means of Bluetooth on your phone or tablet. This also lets you check the voltage BEFORE you connect your shore power cable. It sends a notification if the voltage drops below the level you have selected, but there seems to be a delay of about a minute before the notification is received. Another nice thing with the Hughes is that the surge module can be user-replaced, which apparently requires a trip to the factory for other brands.
2001 Winnebago Brave SE 26P
Workhorse, P32, 7.4L
2000 chassis, SuperSteer springs