The Schmersal BNS250-11Z-10M is a coded magnetic safety sensor designed for non-contact door monitoring applications. This sensor features a magnetic proximity reed switch that reliably detects position changes without physical contact. It comes pre-wired with a 10-meter, 4-core cable terminated with bare end flying leads, making installation straightforward and adaptable to various setups. Compact in size, the sensor measures 33mm wide, 25mm high, and 13mm long, fitting well into tight spaces. Distributed by BSP Automation, this device provides versatile normally open (NO) and normally closed (NC) contact options, ensuring flexible integration into safety circuits.