Replacement Chime Module. CHIME BASE ONLY: This item DOES NOT include the cover and doorbell button. Fit most NuTone models (dimensions are 6.75 L x 4.75 W x 1.75 depth inches), including LA11BG LA11WH KA10 LA109 KB10 L12 L14 CD130 LA110 LA111 LA114 LA116 LA117 LA119 LA12 LA13 LA130 LA14 LA140 LA141 LA144 LA148 LA14WH LA143 LA149 LA30SAVVY LA37 LA15 LA9 LB13 LB12 LB14 LD21 VG130 VG190. TWO SOUNDS: Classic two-note “Ding Dong” sound for the front door button and has an additional connection with a separate "Dong" for the rear or side door