Ukulwa nokulwa kwebhabhathane lebhabhathane elinoSpatch Tamper liyindawo enomgangatho ophezulu nothembekileyo olwenziwe ngokukodwa kwiinkqubo zokhuseleko lomlilo. Le valve ixhotywe nge-tamper switch, ebonelela ngomaleko ongezelelweyo wokhuseleko ngokubukufumanayo nakuphi na ukufikelela okungagunyaziswanga okanye ukuphazamiseka.