Confirm the exact configuration
Use the manufacturer part number and model code—not appearance alone. Connection, size, material, voltage, pressure, seal, and control options can differ within the same product family.

Omron
The Omron E3ZM-CT81-2M is an E3ZM-C cuboid through-beam photoelectric sensor featuring a 15000 mm sensing distance and a 2 m cable connection method. This stainless steel housing component operates on 10-30 V with a PNP output type, offering manual adjustment, Dark-ON and Light-ON operation modes, and a 1 ms response time using infrared light. Protected by an oil-resistant degree of protection IP, the unit utilizes specialized spot size and thread size specifications. Submit the exact part number, quantity, and application requirements for an RFQ quote.
Industrial and obsolete parts are priced per enquiry: the final price depends on available stock, condition, quantity, and your delivery destination, so a fixed list price would be misleading. Request a quote and we confirm current pricing, lead time, and sourcing options — including hard-to-find and discontinued Omron references — within one business day.
For a faster response, include quantity, condition, and delivery destination.
Verified configuration
Engineering context
Use the manufacturer part number and model code—not appearance alone. Connection, size, material, voltage, pressure, seal, and control options can differ within the same product family.
Provide quantity, delivery country and ZIP/postal code, required condition, target date, and photographs of the existing nameplate when available.
Our sourcing response is prepared against Omron E3ZM-CT81-2M. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.