Ring
✓Price
$53.99
OLYMPIA BM 21 Access Detector Motion Sensor Door Bell Siren Volume 95 dB Alarm Detector Access Detector Motion Sensor Door Bell Siren Volume 95 dB Alarm Detector
★★★★★
$53.99
Quantity
1
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About this item
- Use: as alarm detector and door bell for access control. Siren volume 95 dB / 85 dB
- Detection range 5 m alarm sirens and door chime, adjustable wall hanging
- Battery operated: 3 x AA (not included). Temperature range 0 °C to 30 °C
- Dimensions: 98 x 65 x 70 mm. Weight: 218.3 g
Product details
Customer reviews
What customers say about Bigamart
10 Trustpilot reviews total, with 2 shown at a time.
Trustpilot
★★★★★
Excellent
4.5 average rating
S
Sigalit
🇮🇱 · January 2026
★★★★★
I wrote to Bigamart's customer support and they accompanied the process of reshipping the item until it finally arrived. I felt a genuine effort to solve the problem till it was finally solved.
V
Verified buyer
🇦🇺 · November 2025
★★★★★
The package was here in Australia from England in a few days — so quick! Something was missing and they refunded it straight away. Pretty happy with these guys.
Showing 1–2 of 10 reviews
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