Pepperl + Fuchs M18 x 1 Ultrasonic Proximity Sensor - Barrel, PNP Output, 25 → 400 mm Detection, IP67, Output Type: PNP-NO, Terminal Type: M12 - 4 Pin, Supply Voltage: 20 → 30 V dc, Length: 53.5mm, Switching Frequency: 10 Hz, Maximum DC Voltage: 30V, Switching Current: 150 mA, Housing Material: Nickel Plated Brass, Maximum Operating Temperature: +70°C, Minimum Operating Temperature: -25°C, MPN: 6GR6221-3AB00-PF