Heath Zenith SL-7368-02 Entry Alert Kit, Wireless, Ding, Ding-Dong, Westminster Tone, 75 dB, White

Heath Zenith Entry Alert Kit, Ding, Ding-Dong, Westminster Tone, 75 dB Sound Level, Plastic, White, Wired/Wireless: Wireless, Dimensions: 3.5 in W x 1.49 in D x 5.12 in H, Surface Mounting, Includes: Battery, Chime and Door Sensor