The SwitchStone-STD relay module has been developed to work in combination with devices such as the SlimStone-X keypad. The SwitchStone-STD ensures maximum security thanks to 2 external relays, both with a Common, Fail Open and Fail Close contact. These relays are capable of switching voltages up to 250V AC/26V DC, allowing them to be used in a wide range of applications, including switching lighting. Free exit functionality can be easily implemented using the 2 inputs on the module.