Omron EE-SPW421-A is a through-beam photomicrosensor with a 300 mm sensing range, NPN output, and Light-ON operation. The block-style body integrates the amplifier in the cable head, with a 2 m pre-wired cable for 12-24 VDC supply.
Omron EE-SPW421-A Photomicrosensor, NPN Through-beam, 300 mm
MPNEE-SPW421-A
Omron EE-SPW421-A photomicrosensor, NPN output, through-beam, Light-ON, 300 mm range, cable amplifier, 2 m pre-wired, 12-24 VDC.
$102.87Ref. price · indicative, final on quote
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026
Specifications
| Parameter | Value |
|---|---|
| Sensing method | Through-beam |
| Type | Photomicro |
| Light source | GaAs Infrared LED |
| Parameter | Value |
|---|---|
| Supply voltage | 12 to 24 VDC |
| Parameter | Value |
|---|---|
| Connection | Pre-wired |
| Parameter | Value |
|---|---|
| Output | NPN |
| Body type | Block with cable amplifier |
| Operation | Light-ON |
| Cable length | 2 m |
| Housing material | Plastic |
| Product life cycle | Active |
| Max sensing distance | 300 mm |
Product details
Frequently asked questions
What is its output type?
NPN open-collector output for sinking to a PLC or controller.
What is its sensing method and range?
Through-beam with a maximum sensing distance of 300 mm. It uses a GaAs infrared LED light source.
Can it replace an E3T-FT11 directly?
Not without mechanical changes. Both are NPN, Light-ON through-beam sensors, but the EE-SPW421-A has a 300 mm range and a block amplifier body, while the E3T-FT11 has a 500 mm range and a compact rectangular 12×4×19 mm sensor head. Verify mounting footprint before substitution.
MPN
EE-SPW421-A