The E3S-R2E4: The infrared LED source and 1 ms response time suit it for object detection on conveyors or packaging lines where a reflector is mounted opposite the sensor. Metal housing and IP67 rating mean it holds up in wash-down or dusty environments; the 2 m cable with NO/NC switching output gives flexibility in wiring.

Omron E3S-R2E4 Retro-Reflective Sensor, 2m, NPN, IP67
MPNE3S-R2E4
Omron E3S-R2E4 Photoelectric Retro-Reflective Sensor, 2 m, NPN, IP67, 12-24 V DC.
$384.44Ref. price · indicative, final on quote
Source DocumentedChannel stated on listing & quote
Condition PhotosReal unit photos / video on request
WhatsApp AnswersFast human replies for machine-down parts
Worldwide DispatchDHL/FedEx — transit quoted per order
Independent China distributor & sourcing agent· Listing updated Sep 2026
Specifications
| Parameter | Value |
|---|---|
| Model | E3S-R2E4 |
| Parameter | Value |
|---|---|
| Type | Photoelectric Retro-Reflective Sensor |
| Response time | 1 ms |
| Light source | Infrared LED |
| Parameter | Value |
|---|---|
| Operating voltage range | 12 … 24 V DC |
| Parameter | Value |
|---|---|
| Sensing Range | 2 m |
| Electrical Design | NPN |
| Connector type | Cable, 2 m |
| Condition | Used |
| Parameter | Value |
|---|---|
| Weight | 0,15 kg |
| Shelf no. | 240605 |
| Type of product | Photoelectric Retro-Reflective Sensor |
| IP rating | IP67 |
| Housing material | Metal |
| Switching output | Normally Open/Normally Closed |
| Diameter, housing length | 20 x 20 x 55 mm |
| Ambient operating temperature | -25 … 55°C |
Product details
MPN
E3S-R2E4