KSh 1,290(KSh 1,496 Incl VAT)
Device Type: Standalone Photoelectric Smoke Alarm (Sealed Battery)
Model / SKU: HY-SA40A (standalone base model; the HY-SA40A-R8 variant adds 868 MHz wireless interconnect for up to 24 units)
Sensor Type: Photoelectric, split-spectrum sensor technology
Sampling Period: 9 seconds
Alarm Response Threshold: 0.2 dB/m – 0.3 dB/m
Alarm Output: Visual and audible alarm; sound output 85 dB(A) at 3 m (9.84 ft)
Silencing Function: Combined test and silence button; silence duration 9 minutes; also supports silencing via a working infrared remote controller (not included)
Indicators: Tri-color LED — Standby: green flash once per minute; Alarm: red flash once per second; Fault: red flash twice per minute
Power Supply: 3V CR123A lithium battery (non-replaceable, sealed)
Battery Life: 10 years
Operating Current: Monitoring ≤ 15 µA (avg.); Alarm ≤ 35 mA (avg.)
Coverage Area: 20 m² – 40 m² per device when ceiling height is less than 8 m (26.25 ft)
Operating Environment: Indoor use; –10°C to +55°C (+14°F to +131°F); humidity ≤ 95% RH (non-condensing)
Physical & Installation: White PC+ABS housing; dimensions φ81.5 mm × H51.6 mm (φ3.21″ × H2.03″); weight 110 g (0.24 lb); ceiling mount
Compliance & Certification: TÜV and CE listed; compliant with EN 14604:2005+AC:2008
Key Features: Split-spectrum sensor technology for fast response and reduced false alarms; SMD circuit board design; low quiescent current consumption; low-battery warning signal; sealed lithium battery for easy installation and long maintenance-free life.
Key Specs: Dahua HY-SA40A standalone smoke alarm, photoelectric split-spectrum sensor, 9s sampling period, 0.2–0.3 dB/m alarm threshold, 85 dB(A) at 3 m, 9-minute silence (button or IR remote), tri-color LED status, sealed 3V CR123A battery with 10-year life, 20–40 m² coverage, φ81.5 × 51.6 mm ceiling-mount PC+ABS housing, 110 g, TÜV/CE certified, EN 14604 compliant.
Usage: Continuous smoke detection for residential and light-commercial indoor spaces (bedrooms, hallways, living rooms, small offices, shops). The sealed 10-year battery and standalone operation make it suitable for low-maintenance installations where a reliable, long-life smoke alarm is required without wired interconnection.
