I have a SJE Rhombus Tank Alert Series 101 alarm set up on my sewage ejector pit with a high level float switch. I also have a sump pump pit nearby where I'm installing a battery backup system. I'd like to add an alarm alert to the sump pit so I know if/when the line pump has failed and am relying on the battery backup system. I'm wondering if I can just install a second float switch on the alarm, using the same 12V contact on the alarm. I'd have to buy the float switch but it would save me the cost of the alarm base.