Smoke Alert, smoke alarm with UL and EN approvals

FEATURES:

• Advanced detection and discrimination algorithms
• Easy installation and maintenance
• Polished low-profile housing design
• Durable sensor head, no need for replacement
• SMD circuit board design: satisfactory quality and reliability guaranteed
• Integrated heat detector for SD119-2H and SD119-4H models
• N/C (normal / close) and N/O (normal / open) relay output ways for option
• AR (auto reset) function for security systems (optional for 4-wire models)
• Sensor base: standard and Schottky diode style for option
• With two LED, more 360 degree visual angle