1尺寸dimension
Pg13.5(出線孔型wire hole type)
G1/2(出線孔型wire hole type)
1/2-14NPT(wire hole type)
Pg13.5(wire hole type)
G1/2(wire hole type)

2內藏開關inside switch
1NC.1NO接點contact(Slow Action)
2NC接點contact(Slow Action)
3頭部安裝方向the position of head install
F：正面face
4頭部型式head type    
S：標準standard