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MD210 [V1] | Battery Video Doorbell

MD210

New Comers

Battery Video Doorbell

  • 2K Clarity - Crisp video makes faces, packages, and doorstep details easy to see at all times.
  • 160° Wide Field of View - See head-to-toe view and more of your porch with fewer blind spots.†
  • Instant Doorbell Calls - Respond to the doorbell just like answering a phone call, ensuring no visitor or delivery is missed.
  • Auto & Quick Voice Response - Use pre-set voice messages to reply when speaking is not convenient.
  • Free Person Detection - Accurate notifications keep you informed without monthly fees.
  • Wire-Free Installation in Minutes - Stick it on with 3M adhesive or mount with screws—perfect for houses, apartments, and rentals.
  • Months of Power on a Single Charge - Use for months and recharge easily via USB-C on or off the wall.
  • Local & Cloud Storage - Save videos your way with microSD card up to 512 GB or cloud storage.
  • Voice Control - Compatible with Google Assistant and Amazon Alexa, offering hands-free control for users.

 

Overview

Peace of Mind
Starts at Your Door

Battery Video Doorbell

MD210
2K 3MP
Instant Doorbell Calls & Communication
Up to 180-Day Battery Life‡
160° Wide
Field of View
Free Person Detection and Notifications
Easy Install & Charging
Indoor Chime Included
Auto & Quick Response
Secure Local & Cloud Storage

See Who’s There, Day or Night

Bright sunlight or dark nights won’t keep you from seeing clear details.

dark mode dark mode
2K Clarity
Shows Every Detail
IR Night Vision
Faces Stay Visible up to 25 ft

See More Outside Your Door

With a wider 160° diagonal field of view, you can see more of your doorstep and your visitor than with a typical 120° view.†

120° DFOV
160° DFOV

Answer Your Door from Anywhere

Your phone rings the moment the doorbell is pressed, allowing you to speak with visitors in real time wherever you are. When you're busy, your doorbell can answer for you.

  • Instant Doorbell Calls

  • I'll be there in a minute.

    Quick Voice Response

Smart Alerts with No Monthly Fees

Get instant person and motion notifications without any subscription fees. Smart detection makes alerts more accurate and less distracting.

 

Months of Power on a Single Charge

Truly wire-free with Wi-Fi and long-lasting battery power, the doorbell installs anywhere without cables. Enjoy months of reliable performance with no hassle and no interruptions.

  • Rechargeable

    5200 mAh Battery

  • No

    Wiring Needed

180-Day
Battery Life‡

Easy Install & Charging

Setup

Follow the guided steps in the MERCUSYS app to easily set up your doorbell and pair with the chime.

Mount

Attach the plate with a 3M adhesive or screws, then snap on the doorbell to install.

Recharge

Charge with the USB-C port, either detached or on the wall with a power bank.

 

Secure Local & Cloud Storage

Save all your important moments to a microSD card (up to 512 GB) or subscribe to MERCUSYS Camera Care for cloud service after a free trial.§

Subscribe to MERCUSYS Camera Care
  • microSD Card

    microSD Card

    (up to 512 GB)

  • Camera Care

    Camera Care

    (Up to 30-Day Unlimited Video History)

Personalized for Your Home

 

Customizable Active Zones

Get fewer distractions by monitoring only the areas that matter.

 

Customizable Light Ring

Pick a light color that fits your vibe.

 

Wedge Positioning

Use the included 15° mounting wedge for a more focused view from a specific angle.

 

Works with Voice Assistants

Works with Google Assistant and Alexa for hands-free control.

 

†When installed at 1.2 meters, MD210 captures visitors head to toe at a distance of 1.5 meters.
‡180-day battery life is based on laboratory testing with 300 seconds of use per day. The time of use includes recording and watching live views. Actual battery life may vary due to device settings, usage, router specifications, and environmental factors.
§microSD card sold separately. Actual storage capacity depends on the size of the microSD card used. Subscribe for cloud storage at https://www.mercusys.com/cameracare/
△The app Ul is for reference only and is subject to optimization and improvement.
*Specifications are subject to change without notice.

Specifications

Camera
Image Sensor

1/2.8” Progressive Scan CMOS Sensor

Lens

Focal Length: 2.4 mm
Aperture: F2.2
Field of View: 160 (Diagonal), 143.1°(Horizontal), 76.3°(Vertical)

Night Vision

2× 850 nm IR LEDs (25 ft, 7.6 m)
Black and White Image

Interface & Button

Video Doorbell-MD210D：

1× RESET Button
1× Doorbell Button
1× microSD Card Slot
1× USB Type-C Port

 

Chime-MD210C：

1× RESET Button

Video & Audio
Maximum Resolution

2304 × 1296 px

Digital Zoom

10.8×

Frame Rate

15 fps

Video Compression

H.264

Live View

Yes

Image Enhancement

3DNR
WDR

Audio Input & Output

Video Doorbell-MD210D：

Built-in microphone and speaker

 

Chime-MD210C：

Speaker

Audio Communication

Two-Way Audio with Noise Cancellation

Hardware
Power

Video Doorbell-MD210D：

1. Power consumption in networked standby: 0.95 W

2. Power consumption in networked standby when all wireless network ports are activated: 0.95 W

3. Power consumption in low power mode: 0.06 W

4. The default period of time after which the power management function switches the equipment automatically into a condition providing networked standby or low power mode: _20__minutes

5. Use only power supplies listed in the user instruction:

Manufacturer: AOHAI

Model: A806A-050100U-EU1

 

Chime-MD210C：

1. Power consumption in networked standby: 0.50 W

2. Power consumption in networked standby when all wireless network ports are activated: 0.50 W

3. Power consumption in low power mode:  0.48 W

4. The default period of time after which the power management function switches the equipment automatically into a condition providing networked standby or low power mode: _20__minutes

Storage
Local Storage

Micro SD card slot 
(Supports up to 512GB)

Cloud Storage

MERCUSYS Camera Care Cloud Storage Services (Subscription required)

Software
Security

Video Doorbell-MD210D：

Local AI Detection
128-bit AES Encryption with SSL/TLS
WPA/WPA2-PSK/WPA3-PSK

 

Chime-MD210C：

128-bit AES Encryption with SSL/TLS
WPA/WPA2-PSK/WPA3-PSK

Network
Network Connectivity

Connect via Wi-Fi

Wireless Connectivity

IEEE 802.11b/g/n, 2.4 GHz Wi-Fi

Power
Power Source

Video Doorbell-MD210D

5200 mAh Built-in Rechargeable Lithium-ion Battery

Chime-MD210C

Mains Electricity

Detection & Notifications
Sensor

Single PIR Motion Sensor
Motion Detection Range: 31 ft

AI Detection

Person and Motion Detection

Activity Zones

Yes

Output Notification

System Notification
System Notification with Snapshot (Subscription Required)

General
Smart Integration

Google Assistant, Amazon Alexa, Samsung SmartThings

Weather Resistance

IP54

Mounting Options

Stick to a Wall
Mount to a Wall

Operating Temperature

-20℃~45℃

Storage Temperature

-40℃~60℃

Operating Humidity

10%~90% RH, Non-condensing

Storage Humidity

0~90% RH, Non-condensing

Dimensions ( W x D x H )

Video Doorbell-MD210D：

140.0 × 46.0 × 32.6 mm (5.51 × 1.81 × 1.28 inches)

 

Chime-MD210C：

43.5 × 43.2 × 72.9 mm (1.7 × 1.7 × 2.9 inches)

Others
Certifications

CE, NTRA

Package Contents

MERCUSYS Video Doorbell × 1
Chime× 1
Mounting Brackets × 1
Horizontal Mounting Wedge× 1
3M Adhesive× 1
Foam Pad× 1
Screws and Anchors
USB Cable× 1
Mounting Template Sticker × 1
Quick Start Guide