Product Description The Karcher ST6 Senso Timer is an intelligent watering system, using patented sensor technology to measure the moisture level in the soil, so it gives your plants exactly the water they need. It's easy to set up - simply connect the base unit to your outside tap and hose, and it will communicate wirelessly with the moisture stick in the soil. When the soil in your garden drops below the preset required moisture level, the base unit will activate watering at the next preset watering time, activating your irrigation hoses or sprinkler automatically. There are five moisture levels to choose from, and you can water twice during different periods of the day. There is also a 24hr delay button for those times when you'd prefer not to get wet, for example when you're having a barbecue. This innovative system takes care of daily watering so you can have more time to relax and enjoy your garden, and also keeps your plans perfectly watered even when you're away on holiday. Set Contains: 1 x ST6 Senso Timer With One Programmable Water Outlet1 x Tap Adaptor1 x Radio Moisture Sensor1 x Instructions