Try a Bundled set / Starter System.

     (1) Bilge Minder Current Sense.

     (1) Light Minder

with Bilge Minder you will get (2) places to send alerts (email or txt) alerts to Low Voltage warnings on your battery, GPS location, Bilge Pump Status 

and with Light Minder you never have to walk onto your dark boat again, Adjust your galley from 100% light to something more comfortable.