On a catamaran I have 4 bilge pumps, we have each wired to a digital input and thus no more DI slots available.
We want to add a motion detector for security, which requires a digital input. Is there any device available that allows expansion of the Digital Inputs? I note that there are a few requests for the GX Tank 140 to also be able to support Digital Inputs, but the device still does not currentl support this.