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Omron E2S-W21 1M
Omron E2S-W21 1M Super-compact Proximity Sensor
Product Description
The Omron E2S-W21 1M Super-compact Proximity Sensor is designed for precise and reliable detection in a variety of industrial applications. This compact square type sensor features a top sensing surface and a sensing distance of 2.5 mm, making it ideal for space-constrained environments. The sensor operates on a DC 2-wire system and is configured in a normally open (NO) mode.
With a sensing head size of just 8 mm x 7.4 mm x 20 mm, the E2S-W21 is designed to fit into tight spaces without compromising performance. The sensor is unshielded, allowing for flexible installation options. It is equipped with both an operation indicator (orange) and an operation setting indicator (green) for easy status monitoring.
Built to withstand harsh conditions, the E2S-W21 offers IP67 protection and includes power supply reverse polarity protection and a surge suppressor. It operates reliably in a wide temperature range from -25 to 70°C and can be stored in temperatures ranging from -40 to 85°C. The sensor is also resistant to vibration and shock, ensuring durability in demanding environments.
Applications for the E2S-W21 include detecting ferrous metals in automation systems, assembly lines, and other industrial processes. The sensor's high response frequency of 1 kHz and its ability to handle a variety of environmental conditions make it a versatile and dependable choice for engineers and integrators.
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Offer details
- Offer from:
Trusted supplier — Romania, member since 2023, 1–4 employees - Availability:
- On requestLead time: 21 days
- Warranty:
- Not specified
- Condition:
- New Surplus
Specifications
- Brand
- Omron
- Sensing head size
- 8 mm x 7.4 mm x 20 mm
- Type
- Square type, Unshielded
- Power source
- DC 2-wire models
- Sensing distance
- 2.5 mm ±15%
- Setting distance
- 0 to 1.9 mm
- Operation mode
- NO
Available Offers
(7)| Condition | Availability | Supplier | Warranty | Action | |
|---|---|---|---|---|---|
 | Condition New Surplus | Availability On requestLead time: 21 days | SupplierRomaniaTrusted supplier — member since 2023, 1–4 employees | Warranty Not specified | |
| Condition New Surplus | Availability 2 pcs. Updated at: 11-09-2026In-Stock | Supplier GermanyTrusted supplier — member since 2024 | Warranty 24 months | |
| Condition New Factory Sealed | Availability 3 pcs. Updated at: 31-10-2025In-Stock | Supplier United KingdomTrusted supplier — member since 2021 | Warranty Not specified | |
| Condition New Surplus | Availability 2 pcs. Updated at: 11-09-2026In-Stock | SupplierGermanyTrusted supplier — member since 2024 | Warranty 24 months | |
 | Condition New Factory Sealed | Availability 8 pcs. Updated at: 19-09-2026In-Stock | Supplier CzechiaTrusted supplier — member since 2021, 50–99 employees | Warranty 24 months | |
:fill(white):quality(80)/media/thumbor) | Condition New Factory Sealed | Availability 8 pcs. Updated at: 20-09-2026In-Stock | Supplier PolandTrusted supplier — member since 2023, 50–99 employees | Warranty 24 months |
Offer with manufacturer lead time
Directly from the manufacturer - with a confirmed, predictable, and fully transparent delivery time.
Documents
Data Sheet
Datasheet for Omron E2S-W21 1M, including specifications and features.
CAD Models
3D CAD model and technical drawings, ready for your design software.
Product data updated: 22-08-2026
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