OMRON D4SL-N2QDA-D4 [Price]
D4SL-N2QDA-D4 Models with different frequencies are also available to prevent, mutual interference

OMRON guard lock safety-door switch D4SL-N2QDA-D4 INSTRUCTION sheet [Download]
D4SL-N2QDA-D4 PDF. Contact configuration (door open/closed detection switch, and lock monitor swi