Balluff M18MN-USU80B-S21G Inductive Proximity Sensor

Balluff BES02ZE (model M18MN-USU80B-S21G) is an 18 mm inductive proximity sensor in a cylindrical M18 housing designed for flush mounting. It measures Ø18 x 70 mm, with an 8 mm sensing range that detects metal targets without contact, and a normally open (NO) 3‑pin output through a 1/2"-20 UNF-2A male connector. The sensor accepts a wide supply voltage of 20–300 V DC or 20–250 V AC, enabling use in mixed power environments. Its brass, nickel‑plated housing and PBT sensing surface deliver robust construction, rated IP67 for dust and water ingress protection and operation across a -25 to 70 °C temperature range. Compliance includes CE and cULus approvals with WEEE considerations. The part number is M18MN-USU80B-S21G, with ordering code BES02ZE, and it belongs to Balluff’s BES02ZE family of inductive standard sensors. This compact, flush‑mountable sensor is ideal for non‑contact metal detection in industrial automation where space is at a premium, providing reliable 8 mm sensing performance in a durable, surface‑mounted package that can operate from AC or DC power supplies.