Apex skimmer shut off if sump is low

[JMM744]

so my external skimmer overflowed when we had a power outage and it restarted. Lost about 40-50:gal. of salt water. My thought is to have some way of shutting the skimmer off it the water gets too low in the sump. I have the apex classic and have the module to do auto top off and would like to use that some how. Possible?
Appreciate any suggestions
Jim

 

[ibondy]

You will need to get a water level sensor or float switch to detect low water level and then perform actions you need.