Best Smart Locks for Alarm/siren loudness (if included)

#1

The included chime can get loud enough for household alerts across rooms or floors, though reviewers discussed chime volume rather than a separate siren.

#2

Only one review directly discussed loudness, saying the built-in speaker can get pretty loud at full volume.

#3

Evidence is limited but positive: reviewers noted a loud keypad speaker and measured lock noise around the mid-50 dB range.

#4

Audio and alarm volume can be adjusted, but evidence focuses more on controls than measured siren strength.

#5

The lock includes configurable prompts and alarms, with reviewers liking the door-not-locked and failed-attempt alerts, although one noted the speaker is not especially loud.

#6

The lock’s speaker and sound controls drew mixed-positive notes: reviewers found adjustable volume and alarms useful, but one found the default speech very loud.

#7

The reviews confirm alarm sounds and adjustable alarm/operation volume, but they do not measure siren loudness; alarms are tied to jams or failed entries.

#8

The tamper/forced-entry alarm exists, but loudness opinions vary sharply from quiet to deafening or 90 dB.

#9

The lock includes an alarm/siren, but loudness evidence is mixed to weak because multiple reviewers say it is not very loud.

#10

One review states the E330 lacks a siren, so there is no supported siren loudness evidence beyond doorbell/chime behavior.

#11

Alarm/siren capability is weak because one review says there are no security alarms for left-open or forced-open conditions.