Release tablets for life jackets with the release device SECUMATIC 3001S in a protective blister pack with 4 tablets. How do the release tablets work? With the corresponding life jackets, the spring of the automatic system is pre-tensioned and the tension is maintained by the release tablets. When the release tablets come into contact with water and dissolve, the spring relaxes and the lifejacket inflates within 2 to 5 seconds. The SECUMAR release tablets are made of cellulose. According to the manufacturer, each pill is individually measured and its tolerances are controlled. To prevent delayed or missed activations, the weight tolerance for each individual pill is only 3 grams.