Benji__

I have a Deye 8kW inverter which is running my whole house with no essential/non essential loads/circuits. So far on a nice sunny day, I am off grid and everything works beautifully. However, on a cloudy/rainy day, the geyser/pool pump deplete the batteries up to the minimum SOC and start pulling power from the grid. This is fine, except when there is load shedding (which seems to be more often than not) in which case the geyser will run my batteries all the way down to the shutoff value when the inverter will then trip the power. The geyser and pool are on timers but are in 2 different parts of the house which are hard to run wires to, which necessitates wireless switches. Now my question: I would like to use a smart wireless switch such as Sonoff R3 or Sonoff Basic to switch off the pool and geyser IF there is no Eksdom AND battery level is below X%. The second part of this should be easy by using the Generator start dry contact function on the inverter (I can set up when this should happen on the inverter schedule). So basically, I need a device that uses the inverter dry contact signal AND grid ON/OFF to then wirelessly switch my pool and geyser. Ive been looking at the Sonoff products and I am sure there is something there that can do this, I just dont what to spend money not know what their functionality is. Basically I need to take the GEN ON dry contact from inverter and a EKSDOM OFF signal from something, to wireless control 2 switches...Any ideas?