SECRUI M520 Doorbell Kit with 2 or 3 Receivers

5 out of 5

Excellent product. Easy installation and chimes are loud so you can hear it.

4 out of 5

If I could give this product 4.5 stars, I would because this product works very well. The ringers are the same size as typical doorbells, so they cover the screw holes from any previous doorbell, and they look nice. They're also lightweight, so Velcro (included) installation is possible, though I went the screw route. The chime units are smaller than I expected - maybe hockey puck-size - so they don't require much space, but they have plenty of volume (adjustable). The ringers have good range; mine are positioned 48' and 72' away from the chime units and are not line-of-sight, but the signal travels well around corners and through three rooms. I mounted one chime unit 6'6" above the floor, and the other 1' above the floor and behind a wooden door - both positions have work flawlessly. The ringers are easy to open with a small screwdriver, so battery changes will be easy. Both ringers came paired to the two chime units, and either ringer sounds both chimes simultaneously. I was disappointed that I could not get the chime units to each sound a different tone, depending upon which ringer was pressed, so that I could know which door a visitor was at. One criticism I have is that the instructions are printed in very small print; even with reading glasses I had difficulty discerning the instructions. If the manufacturer would splurge on another two inches of paper, we could all live happily ever after.