It's hard when you market so many different chime products to effectively speak to why one is different than another. In most cases it will come down to the cost, range, and manufacturer.
If you need to kit that is very inexpensive, this is a great choice. The RCWL-100A is a complete battery operated chime kit that sets up in minutes. The push button ships with the battery and the receiver is powered by two C-batteries (not included.)
The receiver is small and compact, measuring approximately 10"" H x 7 '' W x 2 '' D. This chime kit is classified as portable which simply means because it is battery powered and compact in size, you can easily move it from one spot to the next. You can also easily mount this receiver on the wall by using the mounting holes located on back of the receiver cover.
- The chime kit has 16-privacy codes that will ensure your chime will not be triggered by neighboring devices
- Push button powered 23A 12V battery (included), receiver powered by 2 x C sized alkaline batteries
- Product dimensions: 10.125 '' H x 6.78 '' W x 1.78'' D
- 75 ft. range between transmitter and receiver
- Ships with 3 screws, wall anchor, and mounting tape
- One year Honeywell manufacturer's warranty
- Honeywell Chime "A" Compatibility
- Plays three chimes: 8 note Westminster; Ding Dong; Ding