KSh 4,290(KSh 4,976 Incl VAT)
Device Type: Wireless Photoelectric Smoke Alarm / Detector (Battery‑Powered, Interconnectable)
Model / SKU: DHI‑HY‑SA211‑W2 (core series: HY‑SA21A‑W2; frequency variants: 433 MHz or 868 MHz)
Sensor Type: Split‑spectrum photoelectric sensor
Alarm Threshold: 0.2 dB/m – 0.3 dB/m (EN 14604 compliant)
Alarm Sound Output: 85 dB(A) – 90 dB(A) at 3 m (9.84 ft)
Silence Duration: Approximately 12 minutes (single‑button test & silence)
Wireless Interconnect: Two‑way frequency hopping; AES128 encryption; communication range up to 1,000 m (3,280.84 ft) in open space. Frequency: 433.1–434.6 MHz (standard) or 868–868.3 MHz (868 variant).
Power Supply: 3 V CR123A lithium battery (replaceable)
Battery Life: Up to 3 years under normal standby conditions
Standby Current: ≤ 35 µA
Alarm Current: ≤ 35 mA
Coverage Area: 20 m² – 40 m² (for ceiling heights < 8 m)
Operating Environment: Indoor use; –10 °C to +55 °C (+14 °F to +131 °F); ≤ 95 % RH (non‑condensing)
Physical & Installation: Dimensions φ98 mm × H43.1 mm (φ3.85″ × 1.70″); weight 140 g (0.30 lb); ABS housing, white; ceiling mount
Compliance & Certification: TÜV and CE listed; compliant with EN 14604:2005+AC:2008
Key Specs: Dahua wireless smoke alarm, split‑spectrum photoelectric sensor, 85–90 dB(A) alarm at 3 m, ~12 min silence, 433/868 MHz two‑way frequency‑hopping wireless (AES128), up to 1,000 m range, 3 V CR123A replaceable battery with ~3‑year life, 20–40 m² coverage, φ98 × 43.1 mm ceiling‑mount housing, TÜV/CE certified.
Usage: Early smoke detection and wireless alerting in residential and light‑commercial indoor spaces (villas, apartments, shops, offices, small warehouses). The interconnect function allows multiple alarms to sound in unison, and events can be relayed via Dahua’s DMSS app for real‑time notification when paired with a compatible hub.
