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Short version: the TECKNET Wireless Motion Sensor Door Chime is the best overall pick — the highest star rating of any motion sensor alarm we track, and it doubles as an entry chime. The CPVAN 125dB Alarm is the pick when you want a genuinely loud siren rather than a subtle chime.
Need long-range outdoor coverage instead? See best driveway alarm.

Top Rated Picks at a Glance

The Ranked Field: Star Rating, Consensus and Price

Best for the highest-rated indoor motion alert device we track, doubling as a door chime.
- Fast PIR detection.
- 5-second alert interval to avoid repeat triggers.
- No WiFi or subscription required.
- Over 2,500 verified owner ratings.
Why buy it: The highest star rating of any motion sensor alarm we track, functioning as both a security alert and a customer/visitor entry chime.

Best for a genuinely loud, attention-grabbing indoor motion alarm.
- 125dB alarm siren.
- Wireless PIR motion detector.
- Remote control included.
- Nearly 2,000 verified owner ratings.
Why buy it: The loudest alarm on this page at 125dB, built for situations where a genuine siren matters more than a subtle chime.
Comparison Table
| Product | Best for | Price | Buy |
|---|---|---|---|
| TECKNET Wireless Motion Sensor Door Chime | Best Overall | $18.99 | Price |
| CPVAN 125dB Motion Sensor Alarm | Best Loud Alarm | $22.99 | Price |
How We Rank
We do not buy or physically install these devices. Every star rating and review count comes from licensed Amazon data. Full method on how we rank.
The Verdict
The TECKNET Wireless Motion Sensor Door Chime is the right default for most buyers — the highest rating in the category and dual use as an entry chime. Choose the CPVAN 125dB Alarm specifically when a loud siren matters more than a polite notification.