In most procurement cycles, E2S-Q21-1M is considered with Omron Photoelectric Sensor, Proximity Sensor M18 Pnp No and IFM Proximity Sensor, giving decision-makers confidence that theyβve chosen the most dependable component.
Omron E2S-Q21 1M Proximity Sensor
The Omron E2S-Q21 1M Proximity Sensor offers Compact Square Type, Unshielded, 2.5 mm Sensing distance, DC 2-Wire NO, Pre-wired 1 M Cable , 12 to 24 VDC Power supply voltage, IP67 Protection. Manufactured by Omron under the Omron Proximity Sensors category, this model belongs to the Omron E2S Series.
| Brand | Omron |
| Product | Proximity Sensors |
| Model Number | E2S-Q21 1M |
Omron E2S-Q21 1M Proximity Sensor - Technical Specifications
| Specification | Value |
|---|---|
| Sensor | Compact Square Type |
| Sensing Distance | 2.5 mm |
| Setting Distance | 0 to 1.9 mm |
| Output Configuration | DC 2-Wire |
| Operation Mode | NO |
| Connection | Pre-wired 1 M Cable |
| Differential Travel | 10% max. of sensing distance |
| Detectable Object | Ferrous metal |
| Standard Sensing Object | Iron, 15 Γ 15 Γ 1 mm |
| Response Frequency | 1 kHz min. |
| Current Consumption | 0.8 mA max. |
| Control Output Load Current | 3 to 50 mA max. |
| Indicator | Operation indicator (orange) |
| Protection Circuit | Output short-circuit protection, Surge suppressor |
| Ambient Temperature Range | Operating: β25 to 70Β°C , Storage: β40 to 85Β°C (with no icing or condensation) |
| Ambient Humidity Range | Operating: 35% to 90% , Storage: 35% to 95% (with no condensation) |
| Material | Polyarylate resin |
| Degree Of Protection | IP67 |
| Weight | Approx. 10 g |
The Omron E2S-Q21 1M is typically considered together with other sensors in the E2S Super-compact Proximity Sensor family because they follow similar mounting patterns, supply ranges, and adjustment behaviour. In practice, engineers often review related models such as Omron E2S-Q21 5M (Compact Square Type, 2.5 mm sensing, Unshielded, DC 2-Wire, NO, Pre-wired 5 M Cable), Omron E2S-W24 1M (Compact Square Type, 2.5 mm sensing, Unshielded, DC 3-Wire NPN, NC, Pre-wired 1 M Cable), and Omron E2S-W23 1M (Compact Square Type, 2.5 mm sensing, Unshielded, DC 3-Wire NPN, NO, Pre-wired 1 M Cable) when selecting the most suitable variant for a tank, chute, conveyor, or compact fixture location. Comparing type, usable sensing distance, mounting style, output configuration, switching mode, and connection method helps match each sensor to the available mechanical space and wiring layout. The E2S-Q21 1M fits naturally into panels, machine frames, dosing systems, and process equipment where a robust Omron Super-compact Proximity Sensor is required for repeatable.
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