The E3T-ST11M: Mount the emitter and receiver facing each other, 1m apart max. Use the adjustable sensitivity to compensate for dust on the lenses. The red LED (650nm) is visible for alignment. Cable is a standard 2m; plan for strain relief at the sensor end. At 1ms response time, it'll catch parts moving at moderate speeds. If you're putting it on a lube route machine, make sure the cable isn't draped where oil drips collect—IP67 handles spray, not constant immersion.
Omron E3T-ST11M Through-Beam Sensor, 1m, NPN, IP67
MPNE3T-ST11M
Omron E3T Series through-beam photoelectric sensor, model E3T-ST11M. Red LED 650nm light source, NPN open collector light-ON output, 1m sensing distance, 12-24V supply, IP67, cable connection.
StockContact for availability
MOQ1 pcs
Sourced new & surplus through independent channelsListing updated Jun 2026
Specifications
Identification
| Parameter | Value |
|---|---|
| Series | E3T |
Sensing
| Parameter | Value |
|---|---|
| Sensing method | Through-Beam |
| Sensing distance | 39.370" (1m) |
| Response time | 1ms |
| Light source | Red (650nm) |
Output
| Parameter | Value |
|---|---|
| Output configuration | NPN - Open Collector/Light-ON |
Environmental
| Parameter | Value |
|---|---|
| Operating temperature range | -25°C ~ 55°C |
Other specifications
| Parameter | Value |
|---|---|
| Adjustment type | Adjustable |
| Supply voltage | 12V ~ 24V |
| Connection method | Cable |
| IP rating | IEC IP67 |
Product details
Frequently asked questions
What is the sensing method and range of the E3T-ST11M?
Through-beam at 1m (39.37 inches). The emitter and receiver must face each other.
What output type does this sensor have?
NPN open collector, light-ON only. It sinks current when the beam is interrupted.
Can the E3T-ST11M replace an E3S-AR86?
Not directly. The E3S-AR86 is retroreflective with PNP selectable output and a connector. This sensor is through-beam, NPN, with a cable. Mounting and wiring changes are required.
What supply voltage does it need?
12-24V DC, compatible with standard industrial control power supplies.
MPN
E3T-ST11M