Cooling Fan Indicator

Many equipment computers, PLCs, and control cabinets rely on cooling fans to exhaust heat and circulate cooling air. Are the fans working? Are they moving air in the proper direction? Our cooling fan indicators provide an easy to see method to verify proper fan operation. These indicators feature a stainless steel wire for mounting and durable Mylar/polyester strands that indicate airflow. The wire can be slipped behind a fan mount screw or frame, or attached to an “alligator clip” or epoxied to a magnet for ease of relocation. Bend the wire to position the indicator strands in the path of airflow. Airflow is then indicated by the fine strands.