Skip to main content
Log in
Omron E3Z-LS81 DC12-24 2M — Photoelectric Sensors

Omron E3Z-LS81 DC12-24 2M Photoelectric Sensor, BGS, 1 ms

MPNE3Z-LS81 DC12-24 2M

Omron E3Z-LS81 DC12-24 2M, Compact Photoelectric Sensor, BGS/FGS, 12–24 VDC, 2 m cable, setting range 40–200 mm white, response time 1 ms.

$62.00Ref. price · indicative, final on quote
Omron E3Z-LS81 DC12-24 2M datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

E3Z-LS81 DC12-24 2M — Sensing
ParameterValue
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.
Response timeOperate or reset: 1 ms max.
E3Z-LS81 DC12-24 2M — Other specifications
ParameterValue
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
Distance setting5-turn endless adjuster
Connection methodPre-wired (standard length: 2 m and 0.5 m)
Current consumption30 mA max.
Differential travel10% of set distance max.
Protection circuitsReversed power supply polarity protection, Output short-circuit protection, Mutual interference prevention
Power supply voltage12 to 24 VDC ±10%, ripple (p-p) 10% max.
Light source (wavelength)Red LED (680 nm)
Dimensions (HxWxD), approx1.08 x 2.0 x 3.1 cm
Reflectivity characteristic (black (white error))10% of set distance max.

Product details

Key Operating Specs

The E3Z-LS81 DC12-24 2M is an Omron photoelectric sensor with background suppression (BGS) and foreground suppression (FGS) modes. It operates on 12–24 VDC ±10% and draws 30 mA max. The output is an open collector (NPN or PNP depending on model) selectable for Light-ON or Dark-ON via a switch. The 5-turn endless adjuster sets the sensing distance: for BGS, detection starts at 20 mm and can be set up to the adjuster position; for FGS, detection range is from the set distance to 200 mm for white paper (100×100 mm) or 160 mm for black paper. Differential travel is 10% of set distance max. Response time is 1 ms max for both operate and reset, making it suitable for fast-moving objects in packaging or material handling applications.

Protection and Mounting

Built-in protection circuits cover reversed power supply polarity, output short-circuit, and mutual interference prevention. Pre-wired with a 2 m cable; dimensions 1.08 × 2.0 × 3.1 cm fit tight spaces. No additional connector needed for installation.

Frequently asked questions

What is the listed response time?

Operate or reset: 1 ms max.

What are the setting ranges for white and black paper?

White paper (100×100 mm): 40 to 200 mm. Black paper (100×100 mm): 40 to 160 mm.

MPN
E3Z-LS81 DC12-24 2M