This document introduces the specifications of a Shock sensor 103 type. The sensor features micro shock signal detecting, non direction limited, 60 million times shock guarantee (special gold alloy plated), low cost circuit with adjustable sensitivity. It is a mechanical type design without mercury. The dimensions are 3.0mm diameter, 6.0mm diameter, 1.0mm unit:mm, 8.0mm. The reference circuit is a 9V input with specific components. It is important to note that the output must be a square wave and cannot be used as a shock switch. The sensitivity can be adjusted through the delay time length of the output square wave. The sensor is suitable for integration into alarm systems.