SECRUI guides
Longer answers to three questions we are asked most.
What 1,000 Feet of Doorbell Range Means Inside a House
The number on the box is true. It is also measured across an empty field.
Read the guideA Door Chime for a Relative Who Wanders
A chime is a small tool for one moment: the door has just opened and you are in another room.
Read the guideHow to Read a Hygrometer at Home
Two numbers on a dial: how warm the air is, and how much water it is holding.
Read the guide
The range
Popular SECRUI kits
Complete kitM520 + F55
SECRUI M520 Wireless Doorbell
4 kits · black or white
- 1,000 ft open air
- 58 melodies
4.7 out of 5 (35,944 ratings)
from $15.99
Complete kitM508 + D017
SECRUI Capsule Door Open Chime
8 kits · white or black
- 500 ft open air
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SECRUI M520 Doorbell Kit with 2 or 3 Receivers
6 kits · black or white
- 1,000 ft open air
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Complete kitCapsule
SECRUI Capsule Wireless Doorbell
8 kits · black or white
- 1,000 ft open air
- 52 melodies
4.7 out of 5 (6,210 ratings)
from $16.99
