Delta 51406-SS Stainless Temp2O Hand Shower W/ Wall Bar. This Multi-Function 2-spray Hand Shower is one of Delta's best products. The Temp2O Technology is safe, user friendly and designed to perform with each use. The Delta 51406-SS Stainless Temp2O Hand Shower W/ Wall Bar is equipped with top-of-the-line Temp2O Technology. This Technology is designed to prevent water temperature surprises. This Hand Shower features an easy-to-read LED digital display and background color indicator make it clear when the water temperature is safe for use. Blue indicates cold, purple-warm, and red-hot. This Delta 51406-SS Stainless Temp2O Hand Shower is WaterSense labeled and promotes water conservation. Its also H2O powered, doesn't need batteries and features dual sprays.