Panasonic ex 10 ultra slim photoelectric sensor built in amplifier panasonic ex19bpn a front sensing through beam type photoelectric sensor with a dark on output the sensor has a sensing range of 1m and can detect opaque object down to oslash2mm this ultra slim device features a built in amplifier and a high speed response time and has an extraordinarily small size and flexible mounting design making it especially suitable for mounting in very confined spaces the excellent basic perform