SQ4-A21-N Panel Omron ZX-LD40L is a Laser

Omron ZX-LD40L is a Laser displacement sensor head

monostable

Series features include Cable and connector versions

Schneider Electric ZB2BWB41C is a Easy Harmony XB2 complete body/contact assembly and light block

Connection type: Cable

SQ4-A21-N Panel Omron ZX-LD40L is a LaserPanasonic SQ4 A21 N is a Safety Liquid Leak Sensor [Control Category 4 PLe SIL3]. Official product detail: Sensor [For standard liquid]. Key specifications include Power voltage: 12 to 24 V DC plus or minus 10 % Ripple P P 10 % or less; Current consumption: 30 mA or less; Detection output(Leakage detection): NPN open collector transistor; Maximum sink current: 50 mA; Applied voltage: Same as the supply voltage (between detection output and 0 V);