Sentra
Sentra
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How It Works
How It Works
Scan the room through the tinted lens
Look for flashing reflections from hidden lenses
Spot cameras instantly
Free Shipping. On orders $50+
Easy Returns. 30-day no-hassle
30 Day Standby. Ready when you need it
Sentra vs Competitors
Detection Range
2x
Longer Scanning Distance¹
Battery Life
3x
Longer Standby Time²
Portability
5x
Smaller & Lighter³
Protection In
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Hotels & Rentals
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Public Restrooms
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Changing Rooms
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Massage & Spa Rooms
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Locker Rooms and Gyms
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Hostels & Shared Dorms
Sentra Specs
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Dual infrared scan (constant / strobe)
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5 m detection range
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USB-C charging (5 V 0.1 A)
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15g ultralight
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3-D stereo sensor chip
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30-day standby (60 mAh)
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40 × 40 × 14 mm compact
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ABS + PC housing
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Boosted infrared sensitivity
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Keychain Loop
FAQ
Sentra flags any lens that reflects infrared light, including pinhole, Wi-Fi, and night-vision models. Sweep slowly and angle the tinted viewfinder toward mirrors, vents, smoke detectors, and other common hiding spots for full coverage.
In constant red mode you can spot reflections up to five meters away, enough to clear an entire hotel room or bathroom. Switch to strobe mode for extra contrast in bright lighting.
Plug the included USB-C cable into any 5 V source for about one hour. A full charge gives roughly thirty days of standby or several hours of continuous scanning, so casual travelers can go weeks without recharging.
Yes, it’s a passive detector with no transmitters.
What People Are Saying
