Anything from 220V to 240V would work for appliances in that range. 50 Hz vs. 60 Hz probably OK, although an A/C designed for 50 Hz only might have trouble trying to spin 20% faster on 60 Hz due to more load. The inverter says "auto sensing", but that would only be if line voltage/frequency connected.
If an appliance also requires 120V (like my home unit with 240V to A/C and 120V for furnace fan), then it would require a transformer. If a window unit, probably 3-prong plug having ground and two hots, then OK.
If running off-grid so it provides 230V single-phase (one hot wire), should be OK.
If you want to connect its input to 120/240V split phase (two hot wires) there is a problem that is may only isolate the one wire it expects to be hot, leaving what it expects to be neutral connected to utility grid. This could be a shock hazard.
Note also the web page says only some types of PV panels can be used because it is a non-isolated inverter. What voltages are connected, for instance from grid, appear on the PV terminals. I think most common PV panels are compatible. I have some transformerless inverters with similar restrictions.
"Surge power 6000VA 10000VA"
That should start motors in appliances rated up to 1200W, 2000W for the bigger one. That bigger ought to be good enough for a (non-inverter drive) 1.4 kW A/C, smaller is questionable. If you get an inverter drive A/C, should be soft start and not a problem.
A hybrid inverter of this wattage for between $400 and $500? Maybe it is OK. You'll find out after using it. Some loads are less stressful than others.
Another guy got a hybrid to power lights for a tourist place, also welding. It worked a few weeks and blew up. So he got a different model. He was able to have the original one repaired to use elsewhere.
Watch the "
OH NO its a smoke" link (from gnubie's signature)
Those of course are trying to start an induction motor, not one with built in inverter drive and slow ramp up of speed.