Westlock 316SB-STM-020-AAA Series Silver Bullet. SPDT Tungsten Connection: M20, Lead: 20ft Cable Jacket: PVC. Also included in the pack is the Westlock standard trigger bolt (3/8-16X.750 (N-POLE FACING OUT (with 3/4″ Length Thread – Maximum Sensing Distance 0.1 inch, 316 Stainless Steel). Certification: Atex Exd IIC / IECEx Exd IIC / NEC500 I,1,B,C&D.
316SB-STM-020-AAA 020 = 20ft Cable