Knight Series® FC-40 Level and Temperature Alarm System

Quote Request

Knight Series® FC-40 Level and Temperature Alarm System

Give us a call at 1.888.733.9283 to speak with one of our expert Sales Engineers or submit an online quote request by filling out the form below.

Request is being submitted... loading image

Your quote request has been submitted to our Sales Department. One of our Sales Engineers will contact you by phone or email within 24 hours or less.

An unexpected error has occurred.

The FC-40 monitors cisterns or reservoirs that supply water for a building’s fire sprinkler system and water containment tanks. It provides a continuous level and temperature information on the panel and dry contacts that connect to the fire panel monitoring system. The FC-40 is ideal for applications where there is a risk of freezing temperatures. The alarm and monitoring features provided meet fire codes and standards for cisterns and fire sprinkler systems.


Models: Voltage:
FC-40 120VAC, 60Hz.
FC-40-A 208/240VAC, 50/60Hz.

Add Pump Portal® remote pump monitoring to this system!     LEARN MORE


  • UL Listed for the United States and Canada
  • System indicates in the event of temperature below 40°F, low liquid level or power loss
  • Complete panel remote monitoring dry contacts (below 40°F, low level or power loss) that are able to connect to fire panel or building management systems
  • Temperature monitoring LCD display with adjustable alarm settings
  • Includes stainless steel temperature sensor
  • Includes low level float (normally closed) with 20’ SJOW cord and mounting clamp
  • Battery backup in the event of power loss
  • Indoor/Outdoor NEMA 4X rated enclosure: Heavy duty polycarbonate with stainless steel lockable latches
  • System has adjustable temperature set points


  • Cisterns/tanks
  • Fire sprinkler systems
  • Applications that require a level and temperature monitoring
  • Above and below ground containment tanks


*Additional cord length greater than 20’: Specify after C. Example: (FC-40-C50) Indicates 50’ cable length for low level narrow angle float (normally closed) and temperature sensor.

Get in Touch: 888.733.9283