I am thinking of setting up Arduino (single board computer USD$23) with sim 808 GPS
, GPRS, GSM (USD$62.50) to monitor
. Lots of resource on Youtube.
Only pay for a monthly prepaid sim card .
This way I can check anytime on the battery
my bilge pump
, location and maybe turn on a light or fan. Or set up a daily reporting, alert me when the bilge pump
One time the useless float switch on the pump
for hours. Luckily that night I happened to be going to the boat.