a circular button 45 is secured on the distal end of shaft 43 inward movement of the shafts 43 causes the legs to move so that the serrations become disengaged from each other the first element 28 can then be moved to its next position when the inward pressure on the legs is removed allowing the serrations to engage each other again a housing 42 upwardly extends about the periphery of the forward portion 36 the front face of housing 42 has a grill 44 therethrough as seen in fig3 which provides a means for the sound to emanate from the alarm generating means 14 as seen in fig1 and 3 elements of the alarm generating means 14 contained in the housing 42 include the microcontroller 52 and an electronic horn 54 disposed behind the grill 44 the top 56 of the housing 42 has an opening therethrough so that the numerical display 58 is visible the display 58 comprising two seven segment units 60 62 an activator switch 64 is mounted through the forward portion 36 for pivotal movement about a horizontal axis as seen in fig3 when the first and second elements 28 30 are secured about the trigger 16 and trigger guard 18 so that the cushions 40 are in engagement with each other the switch 64 is moved to its operative position closing the activating circuit of the alarm generating means 14 when the cushions 40 are disengaged from each other the switch 64 pivots to its inoperative open position acting as a numerical combination entry means a keypad 66 is mounted on the top 27 and includes a 34 select 34 key 68 and an 34 enter 34 key 70 a cover 72 is mounted.