Honeywell TC841A1000


Monitor module, two-wire detectors

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  • Factory New
Brand: Honeywell Part #: 39438 Categories: , Manufacturer Part #: TC841A1000


The TC841A Interface Module is intended for use in intelligent, addressable systems, where the individual address of each module is selected using built-in rotary switches. This module allows intelligent panels to interface and monitor two-wire conventional smoke detectors. It transmits the status (normal, open, or alarm) of one full zone of conventional detectors back to the control panel. All two-wire detectors being monitored must be UL compatible with the module.


Weight 0.30 lbs
Dimensions 1.25 × 4.00 × 4.50 in




Production Status



  • Supports compatible two-wire smoke detectors.
  • Supervises IDC wiring and connection of external power source.
  • High noise (EMF/RFI) immunity.
  • SEMS screws with clamping plates for ease of wiring.
  • Direct-dial entry of address: 01 – 159 on FlashScan loops, 01 – 99 on CLIP loops.
  • LED flashes during normal operation; this is a programmable option.
  • LED latches steady to indicate alarm on command from control panel.

Monitor Modules with FlashScan; TC809A, TC809B, TC841A, TC809D


Honeywell - Data Sheet

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