AP Sensing N4587A-R10


Fiber Optic Linear Heat Detection (LHD)

Availability: Please Call for Availability

  • Factory New
Brand: AP Sensing FireAlarm.com Part #: 131248 Categories: , Manufacturer Part #: N4587A-R10Secondary Part #: N4587A-R10


LHD Interrogator, Multimode (MM) Sensor System, Measurement Range 10 Km, DTS Web Configurator, 2X LAN, 2X USB, SD, 10X Relay.


Weight 0.2 lbs

AP Sensing


AP Sensing



Unit of Measurement

EA (Each)

Production Status



  • Longest certified range in the market (up to 16 km)
  • Up to 4 channels for all distance ranges
  • Fastest fire detection due to significantly improved measurement times
  • Simultaneous measurement with two differently optimized configurations for precise temperature monitoring and faster fire detection
  • Decades of engineering experience ensures MTBF of 35 years
  • State-of-the-art IT security standards
  • Rugged housing design for outdoor and heavy-duty applications
  • Extensive testing for shock, vibration and temperature stress
  • Fully integrated web server with simple configuration via browser
  • 2000 alarm zones configurable per channel
  • Automatic, one-click validation of compliance configuration settings
  • Up to 98 integrated relay contacts
  • Approved according to both EN 54-22 (VdS) and UL 521 (UL)

Introducing The New Standard for Fiber Optic Linear Heat Detection


AP Sensing - Brochure