Tracheostomy tubes are commonly needed airway devices. Not infrequently, these tubes may get blocked, which may be life-threatening. The authors hypothesize to build a standalone flow sensor that can sense and raise an alarm when the tracheostomy tube gets blocked or flow changes. The hypothesized flow sensor for the tracheostomy tube will sense and raise an alarm when the tube gets blocked or flow changes. This automated alarm system will enable less-trained staff and relatives to easily sense the blockage and take timely corrective measures.