Multi-Voltage Conventional Duct Probe

Code : SS-PROBE-D4120, SS-PROBE-D4120W

Product availability : Australia Wide
For further information, please contact your local branch, and our staff will assist you.
  • Plug-in sensor
  • One easy-access Test/Reset button and improved LED status
  • Two DPDT Form-C relay contacts
  • 24VAC/DC or 120VAC
  • Air velocity rating from 0.5 m/s to 20.32 m/s
  • Able to be installed as a stand-alone detector
  • Multiple input voltages

The SS-PROBE-D4120 4-wire photoelectric duct smoke detector features a pivoting housing that fits both square and rectangular footprints and mounts to round or rectangular ductwork. This unit senses smoke in the most challenging conditions, operating in airflow speeds of 0.5 to 20.32 metres per second, temperatures of -20ºC to 70ºC, and a humidity range of 0 to 95 percent
(non-condensing). A plug-in sensor head offers improved false alarm immunity and simple installation, testing, and maintenance. An improved cover design isolates the sensor head from the low-flow feature for simple maintenance.

The housing provides ample wiring space, a 20mm conduit knockout, and built-in short circuit protection to prevent damage to sensitive components during installation. High contrast terminal designations make wiring easy. As many as 50 detectors can be interconnected. When one unit senses smoke, all interconnected detectors will switch their relays; only the detector sensing smoke will go into alarm, thus pinpointing the fire source.

An easy-access Test/Reset button makes it possible to test the unit with the cover on. Three DIP switches can be used to configure field selectable settings: cover tamper delay, number of sensors to be controlled, and shut down on trouble option. Each power board has two LEDs that can be used to indicate the status of connected sensors, and a quick reference imprinted on the cover explains the LED status indications (Standby, Maintenance, Trouble, and Alarm).

*SS-PROBE-D4120W is an indent item. Lead times may apply.