In a Rack or Control Panel, it is essential to monitor the health and performance of Cooling Fans used for forced cooling. Our range of Fan Failure and Temperature Detection Units (FFTDU) modules actively monitor the temperature within the Rack and indicate the same on the front facia. The FFTDU units sense the parameters of the cooling fans and instantly detect any abnormality, thus protecting the Fans from burnout and intimating the operator regarding the failure of any Fan by switching of potential-free change-over contacts. The speed of the Fans can also be dynamically controlled to provide an optimized speed of operation depending on ambient temperature conditions.