(1)Excellent quality from OMRON with competitive price (2) Granted by UL,VDE,CE,CQC (3)Sample availabLE Operation speed:0.1mm~1m/sinsulation resistent:Above 100MΩcontact resistent:Below 30mΩMechanical life:1,000,000 timesElectrical life:10,000 times.Always bring you the best possible service OMRON micro switch 21a