1=Working principle
A Acoustic
B Acceleration sensor
C Capacitive
D Strain gauge sensor
H Hall-effect
J Inductive
JR Inductive ring
JF Inductive surface
JG Inductive slot
JD Metal face
M Magnetoresistive
N Inclination sensor
R Reed-contact
W Angle sensor
2=Switching distance / range
3=Design
D Ring housing / aperture
G Cylindrical housing without thread
M Cylindrical housing with metrical thread
Q Square housing
4=Housing diametr / edge length
5=Housing material
A Aluminium
E Stainless steel
7=Tube lenght
8=Operating voltage
AZ AC altermating current voltege
D DC direct current voltege
VZ AC/DC all volteges