Hand mine
From Battlestar Wiki, the free, open content Battlestar Galactica encyclopedia and episode guide
A hand mine is a type of explosive device use for demolotions work. It can be detonated manually or placed on a timer.
When captured by a Cylon patrol in the Theta's city on Arcta, Thane pawnes off a hand mine as a tape coder with information pertaining to the rag-tag fleet. When a Centurion goes to use it, the Cylon kills Thane and destroys the Centurion detachment (The Gun on Ice Planet Zero, Part II).