Skip to main content
Log in
Omron E3Z-LS81 — Interface & Transceivers

Omron E3Z-LS81 Photoelectric Sensor, 200mm PNP Diffuse Reflective

MPNE3Z-LS81
Active

Omron E3Z series, E3Z-LS81 diffuse reflective photoelectric sensor, PNP Dark-ON/Light-ON selectable output, 200 mm sensing distance, IP67, 12 VDC, red LED 680 nm, cable, five-turn endless adjuster, -25 to 55 °C.

$183.73Ref. price · indicative, final on quote
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

E3Z-LS81 specifications
ParameterValue
SeriesE3Z
Connection_methodCable
Operating temperature high-25°C to 55°C
IP ratingIP67
Output signalPNP - Dark-ON/Light-ON - Selectable
Light_sourceRed (680nm)
Package_typeBulk
Sensing_typeReflective, Diffuse
Adjustment_typeFive-Turn Endless Adjuster
Response time1
Supply voltage12
Sensing distance max0.787

Product details

Panel-fit note — E3Z-LS81 diffuse reflective sensor

The Omron E3Z-LS81 is a diffuse reflective photoelectric sensor in the E3Z family, delivering a 200 mm sensing distance for part-present detection on conveyors, packaging lines, and material handling stations. The PNP output is selectable between Dark-ON and Light-ON via the wiring configuration, which maps directly to sinking PLC inputs without a pull-up resistor. The red LED at 680 nm is visible during alignment and works reliably on matte or colored targets. IP67 sealing means it handles washdown and dusty cabinet environments without a secondary enclosure.

200 mm diffuse reflective range suits a typical conveyor width or a pick-and-place cell where the target passes within that standoff. Diffuse sensing requires a reflective target; it does not need a separate reflector or emitter-receiver pair, which simplifies mounting.

Frequently asked questions

Will the E3Z-LS81 drop into a panel specified for the E3Z-R86?

Both are E3Z series with the same housing, IP67, cable connection, and 12 VDC supply. The main difference is sensing type: the LS81 is diffuse reflective (200 mm, no reflector needed), while the R86 is retroreflective (100 mm, requires a reflector). Wiring is the same PNP Dark-ON/Light-ON selectable, so it will mechanically and electrically fit the same bracket and connector, but the sensing logic changes — you will need to adjust the target standoff and remove the reflector.