Smart Security

M21

Smart WiFi video doorbell with 120° wide-angle lens, IP65 weatherproof design, white light night vision, and two-way intercom. Powered by a massive 4000mAh battery for 3 months of standby — see, hear, and speak to visitors from anywhere via your smartphone.

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GLOBAL IMPACT, PROFESSIONAL TRUST

150+

COUNTRIES AND REGIONS SERVED

3M+

GLOBAL ACTIVE USERS

5m

EFFECTIVE RECORDING RANGE

No.1

IP65 WATERPROOF SMART WIFI DOORBELL WITH 4000MAH BATTERY

Performance
Cutting Edge

Unleash Your Potential

Engineered for the extremes, designed for perfection.

120° Wide-Angle Lens

Wide field of view captures visitors and packages with clarity.

IP65 Weatherproof

Dust-tight and protected against water jets — works reliably in any weather.

White Light Night Vision

Full-color viewing even in complete darkness — see visitors clearly at any hour.

4000mAh Ultra-Long Battery

Massive battery capacity delivers up to 3 months of standby — charge twice a year.

SMART WIFI VIDEO DOORBELL SYSTEM

120° Wide Lens, IP65 Rated, White Light Night Vision, 4000mAh Battery

ULTRA-LONG BATTERY SECURITY

ULTRA-LONG BATTERY SECURITY

The M21 is powered by a massive 4000mAh battery that delivers up to 3 months of standby on a single charge — more than enough to last an entire season. The IP65 weatherproof rating means it works reliably in rain, snow, or sun, while the 120° wide-angle lens captures full-color footage day or night with white light night vision.

  • 4000mAh Battery – 3 months standby, charge twice a year
  • IP65 Weatherproof – Works in any weather
  • White Light Night Vision – Full-color viewing after dark

SMART REMOTE MONITORING

The M21 connects to your home WiFi and pairs with the Tuya Smart app. Record to a local TF card (up to 64GB) for immediate access, or use cloud storage for remote retrieval. The built‑in PIR sensor detects human motion and sends instant notifications to your phone — so you always know who's at your door.

  • Tuya Smart APP – Free app for iOS and Android
  • Dual Storage – TF card + cloud, your footage is never lost
  • PIR Motion Detection – Instant alerts on your phone
SMART REMOTE MONITORING

ADAPTIVETONE

No more false alarms from passing cars or stray animals.

PIR Motion Intelligence detects only human body heat with precision, filtering out environmental disturbances. When motion is detected, the M21 sends an instant notification to your phone and begins recording — so you're always alerted when it matters, and never bothered by false triggers, no matter the weather.

BATTERY LIFE

BE A LONG-STANDING GUARDIAN WITH 3 MONTHS STANDBY

Powered by a 4000mAh rechargeable battery, the M21 delivers up to 3 months of standby on a single charge — more than enough for an entire season. Low-power consumption design with temperature control protection means less frequent charging and more peace of mind. Set it up, connect to WiFi, and forget about recharging for months.

Product Details

Masterfully crafted for every dimension.

M21 Front ViewFront
Back

Tech Specs

Detailed specifications for the M21.

Scheme
BK
Lens
X001 / 120° / white light night vision
Video Resolution
1280 × 720
Battery
4000mAh — lasting for about 3 months, with temperature control protection
Waterproof Grade
IP65
Storage Coding
H.264
Storage Function
TF card + cloud storage, photos and videos - free forever
Recording Range
5 meters
Wireless Connection
IEEE 802.11 b/g/n 2.4GHz
System Support
Android 4.3 or iOS 9.0 and above
USB Interface
Type-C / DC 5V-1A

OEM / ODM SERVICES

BESPOKE SOLUTIONS & CUSTOMIZATION

Leverage our advanced manufacturing ecosystem. We transform your unique vision into market-ready technology with precision-engineered flexibility.

Light Customization

Rapid brand integration through logo application and customized packaging solutions. Ideal for established brands scaling quickly.

Branding Tiers

Drawing-Based

Turning your blueprints into reality. We implement complex CAD designs into high-performance physical hardware with exacting standards.

CAD Integration

Sample-Based

Precision reverse engineering and refinement. Provide your physical prototypes, and we will replicate or enhance them for mass production.

Reverse Engineering

Full Scale Customization

Comprehensive end-to-end development. From initial concept research to hardware design and full-scale manufacturing leadership.

Full ODM Cycle

Contact Us

Start Your Project With Us

Have a specific customization requirement or a global business inquiry? Send us a message and our expert technical team will reach out within 24 hours.

sales@yuaoheng.com
www.yuaoheng.com