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Omron E3ZR81M3J03MOMS — Photoelectric Sensors

Omron E3ZR81M3J03MOMS Retro-Reflective Sensor, PNP, 4m

MPNE3ZR81M3J03MOMS

Omron E3Z series retro-reflective photoelectric sensor, PNP, 4 m sensing distance, 1 ms response, pre-wired, IP67.

$154.21Ref. price · indicative, final on quote
Omron E3ZR81M3J03MOMS datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

E3ZR81M3J03MOMS — Identification
ParameterValue
SeriesE3Z
Sensor typeRetro-Reflective Sensor
E3ZR81M3J03MOMS — Sensing
ParameterValue
Sensing distance, max.4 m
Sensing distance, min.100 mm
Response time1 ms
Light typeLED, Red
E3ZR81M3J03MOMS — Electrical
ParameterValue
Operating voltage, min.12 V
Operating voltage, max.24 V
E3ZR81M3J03MOMS — Output
ParameterValue
Output typePNP
Switching typeLight-ON / Dark-ON
E3ZR81M3J03MOMS — Connection
ParameterValue
Termination typePre-Wired
E3ZR81M3J03MOMS — Environmental
ParameterValue
Protection rating (IP)IP67
Operating temperature, min.-25 °C
Operating temperature, max.55 °C
E3ZR81M3J03MOMS — Mechanical
ParameterValue
Length20 mm
Width10.8 mm
Height31 mm

Product details

Cable or connector?

If you've got a panel wired for the E3ZR812MOMI, this part drops into the same footprint — same 10.8 x 31 x 20 mm envelope, same PNP output, same sensing and power specs. The only real difference is the termination: this one comes pre-wired (cable), the sibling uses a cable pigtail as well (not connector). For a replacement on site, it's a straight swap; just match the cable length to your existing routing.

Mount it and forget it

IP67 means you can hose it down on a food line or mount it under a washdown station. The red LED light source is visible during alignment — no special tools needed. Response time is fast enough for high-speed count and presence on a 1 ms cycle. Keep the ambient below 55 °C and above -25 °C, and the sensor's happy.

Frequently asked questions

What is the closest functional second-source to this sensor?

The E3ZR812MOMI shares the same dimensions, output type, sensing range, and response time. The termination is cable on both, so it's a direct functional equivalent for field swaps.

What are the key dimensions of the E3ZR81M3J03MOMS?

Width 10.8 mm, height 31 mm, length 20 mm. It fits standard mounting brackets for E3Z series sensors.

Will the E3ZR81M3J03MOMS drop into a panel wired for the E3ZR812MOMI without rewiring?

Yes. Both have PNP outputs, identical pin assignments, and the same physical dimensions. The pre-wired cable connection is compatible; just ensure the cable length meets your routing.

MPN
E3ZR81M3J03MOMS