NB-326-SH-2 Combine (Optical Smoke+Heat ) Dedector

      NB-326-SH-2 Conventional Combine (Optical Smoke+Heat) Dedector come with an photoelectric smoke detector and a fixed temprature heat dedector. They offer a general purpose protection of a rapid fire and a smoldering fire incident.  

      Features:
       2 or 4 wire models
       Dual LEDs for 360°visibility
       Advanced detection and discrimination algorithms
      ● Easy installation and maintenance
       Sleek low-profile housing design
       Durable sensor head, no need for replacement
      ● SMD circuit board design-satisfactory quality and reliability guaranteed
       Integrated heat detector for NB326-H-2 and NB326-H-4 models
       Five-year limited warranty
       N/C (normal/close)-N/O (normal/open)selectable relay output
      ● AR (Auto Reset) function for security systems (optional for 4 wire models)
       Sensor base option: standard and Shottky Diode