System Sensor COSMOD2W


2-wire interface module (required to use with COSMO-2W models)

Availability: In Stock

Condition: New
Brand: System Sensor
Status: Active
SKU: 31284
Manufacturer Part #: COSMOD2W


The i4 series module is designed to interface between compatible i4 series combination CO/smoke detectors (Model COSMO-2W and COSMO-4W) and compatible security/fire panels. It can also be used to retrofit compatible i4 series detectors into an existing loop of i3 smoke detector models 2WTA-B or 4WTA-B, without adding wires. The module interprets signals and translates them into a separate smoke zone and a separate CO zone, each with alarm and trouble signals. The module will interconnect the detectors connected to it and alarm them in either Temporal 3 or Temporal 4 pattern. Optional triggers are provided to initiate multiple modules to sound. MOD is not required) Local status indication is provided by 4 LED’s and a 3 position DIP switch enables user configuration.

Additional information

Weight 0.6 lbs
Dimensions 1.00 × 6.04 × 6.40 in



Production Status



  • Easily integrates up to 12 compatible detectors to a wide range of control panels
  • 2-wire module is compatible with COSMO-2W combination detectors and 2WTA-B smoke detectors.
  • 4-wire module is compatible with COSMO-4W combination detectors and 4WTA-B smoke detectors.
  • Sends distinct smoke and CO signals from i4 detectors to the panel
  • LED indication shows when a detector on the loop requires cleaning or maintenance (2-wire detectors only)
  • Initiates the EZ Walk loop test (2-wire detectors only)
  • Module interconnects the sounders of all devices connected to it. No RSS-MOD is required. Optional trigger inputs are provided to sound multiple modules.


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