The timer can be set to anywhere between 0 and 9 turns.
* If set to 0 turns, the SLAM will explode in the same turn the timer was set.
** Do not plant a SLAM with the timer set to 0; it will immediately explode at you, and you will and take Target Damage(everyone else on your Side will take Splash Damage). The 0-turn timer is intended to allow you to throw the SLAM, as an impromptu hand grenade.
* If set to anywhere between 1 and 9 turns, the SLAM can be planted safely on your current Side, so long as you take the same safety precautions as with a pressure mine. It will explode on the turn the counter reaches 0, as a non-combat (IS 0) action.
** It is unsafe to set the timer to 1 turn before planting it. If you intend to leave the Side where a 1-turn SLAM was planted, you will be forced to "race" your own SLAM's timer, as non-combat movement to another Side has the same Initiative Speed as the explosive, and any slower action will guarantee it will explode before you can leave.