Photoelectric Smoke Detector YUNYANG YDS-SO1 – To prevent the ingression of dusts, insects, and other foreign bodies, triggering false alarm. – Photoelectric detection component, rapidly detects high smoke concentrations and triggers the alarm with excellent stability. – High sensitivity. Not easily interfered. To emit light 360º beam angle for all over illumination with no blind spots. – A green indicator light represents proper standby mode. – Easily maintained and […]