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CNA Insurance

Fire Pump Transducer Recall Announced

On April 24, 2012, the Consumer Products Safety Commission (CPSC) and Gem Sensors Inc. announced a voluntary recall of the following product:

Gems 3100 Pressure Detectors/Transducers

These transducers can fail to accurately detect the water pressure in the automatic sprinkler system. This could result in a failure to activate the fire pump due to a water pressure drop in the automatic sprinkler system, which ultimately could result in a catastrophic failure of the automatic sprinklers to control or suppress a fire.

Approximately 25,000 units involved in the recall have been identified:

  • Affected units were sold from January 2006 through February 2012.
  • Fire Pump Controllers manufactured during this period should be inspected.
  • If you modified your fire pump controller during this period, it should be inspected.
  • Units have Gems Sensors & Controls and an 18 digit part number beginning with “3100” on a label affixed to the center of the unit.


While most CPSC recalls advise consumers to stop using the product immediately, this is not the case for this particular device. The manufacturer describes the issue as a slow degradation of performance over many hours of continuous use with constant water pressure. A specific inspection procedure has been established to determine if the transducer is eligible for free replacement.

Inspection Procedure:

If you installed or modified your fire pump controller between the dates of January 2006 and February 2012, you should contact your fire pump servicing contractor to determine if you have this device in your fire pump controller and to perform the inspection procedure, if required. Details outlining the inspection procedures are available for your review in the April 27, 2012 Gems Sensors & Controls letter “IMPORTANT CPSC RECALL UPDATE” which is available on their website,

Contact Information:  Gems Recall Hotline at 855-877-9666 or