Dahua DHI-HY-SA21A-W2 Wireless Smoke Alarm - Photoelectric / 85-90dB / 1000m Range / AES128 | 2 Year Warranty | Brand New
Overview
The Dahua HY-SA21A-W2 is a wireless photoelectric smoke alarm with split-spectrum detection, an 85-90dB siren, two-way encrypted 433MHz communication up to 1000m and up to 3 years of battery life - EN 14604 certified for homes and offices.
Key Features
- Photoelectric split-spectrum smoke sensing
- 85-90dB alarm at 3m with LED indication; ~12 min silence function
- Two-way wireless with frequency hopping, up to 1000m open area
- AES128 encryption
- 3V CR123A lithium battery, up to 3 years life
Specifications
| Model | DHI-HY-SA21A-W2 |
| Sensor | Photoelectric (Split-Spectrum) |
| Alarm Types | Smoke, Fault, Low Battery |
| Alarm Volume | 85-90 dB at 3m |
| Alarm Mode | Visual (LED) & Audible |
| Silence Function | Yes (approx. 12 minutes) |
| Coverage | 20-40 m² (up to 8m height) |
| Frequency | 433.1 - 434.6 MHz |
| Wireless Range | Up to 1000m (open area) |
| Security | AES128, Two-Way with Frequency Hopping |
| Power | 3V CR123A Lithium (up to 3 years) |
| Operating Temp | -10°C to +55°C |
| Installation | Ceiling Mount |
| Certifications | CE, TÜV (EN 14604) |
| Warranty | 2 Years from Mivanta Service Center |
Ideal For
- Homes and apartments
- Offices, server rooms and shops
- Dahua wireless alarm hub systems
Why Buy from BRoot
- Store pickup & live demo at BRoot Compusoft, Kings Road, Jaipur
- GST invoice with full input tax credit for business purchases
- 100% brand new; Official brand warranty (2 Years from Mivanta Service Center)
- WhatsApp / Call 8094019550 for instant quotes and bulk orders