Sentry: The Most Advanced Doorbell - CLICK HERE FOR SAMPLE VIDEO


Never miss a visitor

Get instantly notified when someone rings your doorbell. See and talk to your guest from your phone like a video call with Real 2-way Audio.

Busy or missed the notification? No worries. Sentry can automatically play a prerecorded voice message to your guest, and have them leave a voice message to you too.


No more false alarms

Tired of seeing false motion alerts from drive-by cars, swaying twigs, moving shadows? Sentry uses Advanced Motion Detection to only capture motion of people, so you will only receive notifications that are relevant.


Color Night Vision

Monitor your front door in vivid color and clarity, even at night. You can also switch back to regular black-and-white night vision.


Local & Cloud Storage

The choice is yours! You can choose to store video clips on the cloud for up to 30 days, or store them locally with a micro SD card up to 128GB… or both!


Resolution 1920 * 1080
Field of View 180° Diagonal
Night Vision Infrared Night Vision w/ 4 IR-LEDs
Color Night Vision
Motion Sensor PIR (Body Heat Sensor), up to 20ft
Audio Full-duplex two-way audio
Speaker Up to 100dB volume
Lights 1x LED

AC 8-24V, 10W (Wires into existing doorbell wiring)
DC 5V 2A, 10W (Micro USB Cable powered - Cable not incl)

This is not a battery powered camera

Hub 915MHz, up to 650ft range
Storage Local: micro SD up to 128GB (micro SD card sold separately)
Cloud: Rolling 7/30 days event recording(requires Bosma Assist subscription)
Wireless 802.11 b/g/n 2.4GHz (does not support 5GHz)
WPA, WPA2 encryption
Minimum 2Mbps upload speed required
Weight 6 oz
Dimensions 5”(L) x 2.4”(W) x 1.2”(H)
Operating Temperature 14°F ~ 122°F
Weather Resistance IP64
Color Black
Material Aluminum Alloy
Warranty 1-year limited warranty
Certifications CE, FCC, RoHS
App Free “BOSMA” app available on Google Play and App Store
In the Box – BOSMA Sentry Video Doorbell x 1
– Phillips Screwdriver x 1
– Drill Bit x 1
– Screw x 4
– Anchor x 4
– Tamperproof Screw x 1
– Installation Sticker x 1
– Quick Start Guide x 1

Bosma Sentry Doorbell Camera

  • Sensor Type

    1/2.8”2MP Sony IMX307 ,Starvis low light color CMOS sensor

    Max Resolution

    2.0Mega Pixels (1920*1080)

    Frame Rate

    25fps Max

    Lens Type

     f:2.7mm, F:2.2

    Angle of View

    Diagonal: 180°;Horizontal: 179°;Vertical:93°


    Night Vision

    IR black & white night vision ,4pcs IR-LEDs, night vision range up to 8 meters

    Starlight color night vision ,with Sony IMX307 STARVIS


    Full duplex 2-way audio


    100dB alarm

    Wireless Standard

    802.11 b/g/n 2.4GHz (Does not support 5.8GHz network)

    Wireless Setup

    QR code setup


    Supports up to 128GB microSD cards

    Rolling 7/30 days of history videos , with Bosma Assist service


    1pcs PIR sensors,2-6meters range


    5V±10%, 2.0A


    AC16~24V±10%, 1.0A