Holman CO3007 is a digital tap timer with a wireless moisture sensor that allows precise watering of gardens, pots, tubs, and vertical gardens. The wireless moisture sensor prevents overwatering by measuring soil moisture and communicating with the timer to adjust watering schedules accordingly. The timer features up to 8 start times per day, with watering durations as short as 1 minute. It also allows for customization of soil moisture set points on a scale of 5 (dry) to 99 (very wet), ensuring optimal hydration for different plant types.