The E2E-X2B28-M1 is a Proximity Sensors M8 Shielded Output PNP, IOLink None from Omron. It has a sensing distance of 8mm, an operating frequency of 500kHz, and is OMRON E2E-X2 Series proximity sensors rated for NPN output. It is a shielded type, designed for proximity detection of metal objects, and is suitable for use with IOLink. It operates at 12 - 24 V @ 50/60 Hz, and its rated insulation voltage is 250 VAC. It has an indicator LED that turns on while in operation, and its sensing current is 24 mA max. Its sensing accuracy is +/- 1.5 mm, and its response time is 500 microseconds. It has a -40 - +80 C operating temperature range and an M8 electrical connection.