Part of the Omron Photoelectric Sensors series — see the full model table, lifecycle status and replacement parts.
Omron E3Z-LS66 — Distance Settable Sensor, NPN, M8
SKU: E3Z-LS66USD 31.00
BGS-reflective distance-settable photoelectric sensor, 20-200 mm range on white paper, NPN output, M8 4-pin connector, IP67.
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Product Overview
The Omron E3Z-LS66 is the M8 4-pin connector version of the E3Z-LS distance-settable BGS-reflective sensor. manufactured by Omron Corporation. Hengyixin Automation ships this sensor from our Xiamen warehouse with a 30-day DOA return window and a datasheet PDF included in the box.
The optical cutoff focuses the receiver on a set distance, so the sensor sees a target only inside a 20-200 mm band and ignores anything beyond it. The 5-turn pot sets the cutoff anywhere from 40 mm to 200 mm on white paper (40-160 mm on black paper) -- useful on a conveyor or fixture where the next part moves between black, white, and shiny finishes and the background drifts between scans.
The visible red LED is around 680 nm -- not a laser, so there is no Class 1 safety paperwork.
Key Features
- Light-ON / Dark-ON switch on the rear face, 1 ms or less response time
- 12-24 VDC +/- 10% supply at 30 mA or less, ripple 10% or less
- NPN open-collector output, 100 mA max at 26.4 VDC, residual voltage 1 V or less
- Setting range 40-200 mm on white paper, 40-160 mm on black paper, 5-turn endless sensitivity pot
- SKU: E3Z-LS66
- Series: E3Z-LS66
- Voltage: 12-24 VDC
Best-Fit Applications
- SMT feeder empty / part present check on a pick-and-place machine
- Bottle cap or closure detection with a fixed background surface
- Small-part presence check on an indexing table with a fixed background
Buying Checklist
- Pick E3Z-LS86 instead when the controller expects a PNP sourcing input (same M8 4-pin connector).
- Pick E3Z-LS66 for a 20-200 mm distance-settable BGS-reflective sensor with NPN output and M8 4-pin connector.
- Pick E3Z-LS61 2M instead when a 2 m pre-wired lead is preferred over a quick-disconnect M8 harness.
Technical Specifications
| Sensing Method | Distance-settable BGS-reflective (BGS / FGS) |
|---|---|
| Sensing Range | 20-200 mm on white paper 100x100 mm; 40-160 mm on black paper |
| Light Source | Red 680 nm LED (visible spot, not laser) |
| Output Type | NPN open collector, 100 mA max at 26.4 VDC, residual 1 V or less |
| Connection | M8 4-pin connector on the rear face |
| Supply Voltage | 12-24 VDC +/- 10%, ripple 10% or less |
| Current Draw | 30 mA or less |
| Response Time | 1 ms or less (operate and reset) |
| Sensitivity Adjustment | 5-turn endless potentiometer |
| Operating Mode | Light-ON / Dark-ON switch on the rear face |
| Indicators | Orange operation LED + green stability LED |
| Protection / Operating Temp | Mutual-interference prevention, IP67 ABS, -25 to +55 C |
Manufacturer documentation
Omron's own product page, where the manufacturer's current specification and lifecycle information are published. We are an independent distributor and cannot mirror those documents; the link goes to Omron's site.
FAQ for E3Z-LS66
Is the E3Z-LS66 a laser sensor?
No. The E3Z-LS66 is a red LED distance-settable BGS-reflective sensor with a visible 680 nm spot. The E3Z-LL family is the laser BGS sensor (20-300 mm range, Class 1 laser). The E3Z-LS66 has no laser-class safety paperwork and can be aimed by eye. Pick the E3Z-LS for color-independent presence detection on a fixed background; pick the E3Z-LL when you need a smaller spot for a small target or a longer BGS range.
What is the difference between E3Z-LS66 and E3Z-LS86?
Output polarity. The E3Z-LS66 is NPN (sinking) and the E3Z-LS86 is PNP (sourcing). Both share the same 20-200 mm BGS range, M8 4-pin connector, IP67 ABS housing, 12-24 VDC supply, and 1 ms response. Pick the LS66 for a sinking input card (CP1 / CP2 / CJ-series NPN mode); pick the LS86 for a sourcing input card. The last two digits set the connector on both: 1 = 2 m pre-wired, 6 = M8 4-pin, 8 = M12 4-pin.
Does the E3Z-LS66 need a separate amplifier?
No. The E3Z-LS66 is a self-contained photoelectric sensor with the emitter, receiver, amplifier, and output transistor built into one housing. The M8 4-pin connector on the rear face carries the 12-24 VDC supply and the NPN output. You do not need an E3X-NA / E3X-SD / E3X-HD amplifier and you do not need an E32 fiber-optic cable -- the LS66 is a complete sensor in one housing.
What cable do I need for the M8 connector on the E3Z-LS66?
A 4-pin M8 female sensor harness with straight or right-angle connector. Omron's XS3F-M321 series (PVC) or XS3W-M321 series (angled) are the matching 4-wire M8 cables in 2 m, 5 m, and 10 m lengths. Pin 1 = brown (V+), pin 3 = blue (0 V), pin 4 = black (NPN output), pin 2 = white (not used on the E3Z-LS66). Use a 4-core M8 cable; a 3-core cable will work for the supply and output but leaves the white wire unterminated at the sensor end.
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