The Landis is a reliable, nicely-styled kWh meter - great as a total generation meter for most solar PV installations. However, if you have spare space in the consumer unit, you might consider the compact Rayleigh kWh meter, which is DIN rail mounting and very discreet.
The GEO energy monitors are a simple, low-cost means of monitoring in real time the power that a solar array is producing. The display can show the instantaneous power, total kWh generated that day (or over the last 30 days), and income from the feed-in tariff. Easy to set up and use - you should never do an installation without one!
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