CATALOGUE RANGE: n Accessories DOOR CHIME WITH BUILT-IN TRANSFORMER • Integral transformer: neater, faster installation • ABS construction • Modern design • M.O.M: 5 / O.P.Q: 20 45mm 105mm 170mm Back Code Colour IP Rating TCWH White IP20 Inside Door Chime THIS PRODUCT IS DESIGNED FOR DOMESTIC INSTALLATION UP TO 15M RANGE