siren

The Dahua HY-C136 is a 4-wire conventional heat detector designed for fire alarm systems. It detects abnormal temperature changes and rapid

The Dahua ARA11 is an indoor wired siren designed for security alarm systems. It provides loud audible and visual alerts when an alarm is

Dahua ARA13-W2 Wireless Outdoor Siren The Dahua ARA13-W2 is a wireless outdoor siren designed for security and alarm systems. It provides