Digital push blue button come with LED, immersion gold surface and bright coloured hats. A captital D at left corner indicates that it is a digital sensor. An illustration of button painted in the back notifying its function. The long pressable life also ensures its durability.3.3V to 5V wide voltage rangeStandard assembling structure (two 3mm diameter holes with multiple of 5mm as distance from centre)Easily recognitive interfaces of sensors ("A" for analogue and "D" for digital)Icons to simplify illustrate sensor functionHigh quality connectorImmersion gold surfaceDigital interfaceEasy to plug and playLarge button keypad and high quality first class hatAble to achieve very interesting and an interactive workApplicationsEmbedded Design & Development, Electronics Design, IoT (Internet of Things), Hobby & EducationContentsDigital push button, Digital cable.Accessory Type: Digital Blue Push ButtonFor Use With: Arduino IO Expansion ShieldProduct Range: Gravity Series