https://www.asmag.com/showpost/35280.aspx
Product Info
SM 871 (4 Wire) Photo Electric Smoke Detector

SM 871 (4 Wire) Photo Electric Smoke Detector

MFNE
Region: Taiwan
Update: 11/29/2006
Key Specifications
*Compiles with U

*L268,EN54, CNS and MEA

*Operating voltage of 12 to 24 volts

*Low power consumption

*Low-profile design  easy installation with common base hookup

*Monitoring LED in stand-by status

*Stainless steel insect guard to reduce false alarms

*Detector checks smoke density every 3 seconds.

For more information, please visit the company''s Website at www.crowelec.com/

https://www.asmag.com/project/assa_abloy_digital_access_control/index.aspx