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Omron E3Z-LS66 — Photoelectric Sensors

Omron E3Z-LS66 Photoelectric Sensor, Distance-Settable, 40-2

MPNE3Z-LS66

Omron E3Z-LS66 distance-settable photoelectric sensor, red LED (680 nm), sensing range 40 to 200 mm on white paper, control output 100 mA, NPN/PNP selectable.

$65.02 – $119.00Ref. price · indicative, final on quote
Omron E3Z-LS66 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

E3Z-LS66 — Sensing
ParameterValue
Sensing methodDistance-settable
Sensing distanceBGS = White or black paper (100 × 100 mm): 20 mm to set distance, FGS = White paper (100 × 100 mm): Set distance to 200 mm min., Black paper (100 × 100 mm): Set distance to 160 mm min.
E3Z-LS66 — Other specifications
ParameterValue
Product typePhotoelectric Sensor
Setting rangeWhite paper (100 × 100 mm): 40 to 200 mm, Black paper (100 × 100 mm): 40 to 160 mm
Control outputLoad power supply voltage: 26.4 VDC max., Load current: 100 mA max. (residual voltage 1 V max.), Open collector output (NPN or PNP depending on model) Light-ON/Dark-ON switch selectable
Current consumption30 mA max
Differential travel10% of set distance max.
Power supply voltage12 to 24 VDC ±10%, ripple (p-p): 10% max.
Light source (wavelength)Red LED (680 nm)

Product details

Sensor overview for panel integration

The Omron E3Z-LS66 is a distance-settable photoelectric sensor using a red LED (680 nm) light source. It offers both background suppression (BGS) and foreground suppression (FGS) modes, with a sensing range of 40 to 200 mm on a white paper target and 40 to 160 mm on black paper. The control output is an open collector, NPN or PNP selectable via a Light-ON/Dark-ON switch, rated for 100 mA max at up to 26.4 VDC. Power supply is 12 to 24 VDC, and current consumption is 30 mA max.

Installation and wiring notes

The control output is an open collector rated for 100 mA at 26.4 VDC max, with residual voltage 1 V max. The output can be configured as Light-ON or Dark-ON via a switch. Power supply must be 12 to 24 VDC with ripple ≤10%. Differential travel is 10% of set distance maximum. For reliable background suppression, the sensing range varies with target color and reflectivity; best performance is achieved with the distance set within the white paper range.

Frequently asked questions

Will the E3Z-LS66 drop into a panel wired for the E3Z-LL81?

No. The E3Z-LL81 uses a PNP-only output and operates on 10-30 VDC, while the E3Z-LS66 can be set to NPN or PNP and requires 12-24 VDC. Additionally, the sensing technology differs (laser vs LED). Check your wiring and voltage before substitution.

MPN
E3Z-LS66