The RC3250 by Thomas and Betts (Carlon) is the work horse in the wireless door chime world. The simple reason is because the product is so versatile. The door chime, receiver, as an example, will appear in many Carlon wireless door chime kits, or as a stand alone product. The receiver, just like the included wireless push button in the RC3250 is cross-compatible with all other wireless doorbell products produced by Thomas and Betts.
Watch this short video that provides a brief introduction to the RC3250. If you need a door chime in your home, whether you need something for both the front and back door, or just one, the RC3250 is an easy to set up and easier to choose system. With a range of up to 150 feet, it is a solid performer.