Panasonic ex l200 series ultra compact laser sensors built in amplifier panasonic ex l212 p a through beam long range sensing type laser sensor with a range of 3m and very low beam spread this incredibly small high precision laser sensor has a built in amplifier and has the directivity and visibility performance only achievable by a laser device the sensor uses a red class 1 laser that is safe to use and does not require isolated areas of laser usage the sensor has low current consumption