Before you order, check you have the three things a LevelLink needs: mains power at the tank, WiFi that reaches it, and a way to get the probe to the bottom. All three are covered on the how it works page.
Everything arrives together: the stainless probe on its cable, the weatherproof control box, and a plug pack with 10 m of low-voltage cable. Shipped from Australia.
Before you order, check you have the three things a LevelLink needs: mains power at the tank, WiFi that reaches it, and a way to get the probe to the bottom. All three are covered on the how it works page.