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KEYENCE GT2-P12K High-precision Contact Displacement Sensor Head with 12 mm Measuring Range and 1 μm Accuracy
| Detection System | Scale Shot System II, Absolute Type (no Tracking Errors) | Measuring Range | 12 Mm (0.47") |
|---|---|---|---|
| Resolution | 0.1 μm (0.004 Mil) | Indicated Accuracy | 1 μm (0.04 Mil) P-p (at 20°C/68°F) |
| Sampling Cycle | 4 Ms | Mechanical Response | 10 Hz (at 20°C/68°F) |
| Shock Resistance | 1,000 M/s² (IEC60068-2-27) | Weight | Approx. 35 G |
| Highlight | High-precision Contact Displacement Sensor Head,12 mm Measuring Range Digital Contact Positioning Sensor,1 μm Accuracy GT2 Series Sensor Head |
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KEYENCE GT2-P12K High-Accuracy Contact Displacement Sensor
GT2-P12K is a high-performance contact displacement sensor head from KEYENCE's popular GT2 Series, engineered to deliver ultra-stable, high-precision measurement for a wide range of industrial automation applications. As a global leader in industrial automation and sensing solutions, KEYENCE designs the GT2 series to solve complex measurement challenges that require consistent accuracy even in harsh factory environments. The GT2-P12K model combines a medium measuring range with industry-leading resolution, making it ideal for general-purpose displacement, thickness, height and position inspection tasks on production lines.
Product Overview
The KEYENCE GT2 Series contact displacement sensors use a proven spring-loaded contact design paired with KEYENCE's advanced signal processing technology to deliver unrivaled measurement stability. The GT2-P12K is a sensor head model that requires connection to a GT2 series amplifier unit (sold separately) to operate, offering users the flexibility to match the sensor head with the appropriate amplifier for their specific application requirements. This modular design reduces long-term maintenance costs, as users can replace only the sensor head if needed without replacing the entire system.
GT2-P12K is designed to withstand the rigors of daily industrial use, with a rugged IP rating that protects against dust and water ingress, ensuring reliable operation in wet, dusty, or high-vibration production environments. Whether you are measuring part dimensions during manufacturing, checking for assembly defects, monitoring position alignment, or testing product thickness, the GT2-P12K provides the consistent, repeatable results you need to maintain product quality and improve production efficiency.
Key Specifications
| Parameter | Specification |
| Measuring Range | 12 mm |
| Minimum Resolution | 0.5 μm |
| Repeatability | 0.2 μm |
| Linearity | ±0.1% of F.S. |
| Measuring Force | Approx. 0.25 N |
| Response Time | Compatible with all GT2 amplifier response modes (from 0.25 ms to 10 ms) |
| IP Rating | IP67 |
| Operating Temperature | 0 to 50°C (32 to 122°F) |
| Contact Tip Material | Special hardened stainless steel |
| Connection Method | Standard cable connection (1 m standard length) |
| Weight (Sensor Head) | Approx. 150 g |
Key Features
1. Industry-Leading Measurement Accuracy
The GT2-P12K delivers exceptional 0.5 μm minimum resolution and 0.2 μm repeatability, enabling it to detect even the smallest dimensional variations in workpieces. This high level of accuracy ensures that you can catch even minor defects or deviations that other sensors would miss, helping you maintain strict quality control standards and reduce the number of defective products reaching customers.
2. Rugged Industrial Construction
With an IP67 rating, the GT2-P12K sensor head is fully protected against dust ingress and can withstand temporary immersion in water, making it suitable for use in wet manufacturing environments such as food processing, automotive parts washing, and metalworking. The hardened stainless steel contact tip resists wear from repeated contact with workpieces, extending the service life of the sensor even in high-volume production applications.
3. Low Measuring Force for Delicate Workpieces
The GT2-P12K features a low measuring force of approximately 0.25 N, which makes it safe to use on soft, flexible, or delicate workpieces that could be damaged by higher-force contact sensors. This makes it ideal for measuring soft rubber parts, plastic components, thin films, and other sensitive materials without causing deformation or damage that would affect measurement accuracy.
4. Compact Design for Flexible Installation
The compact form factor of the GT2-P12K allows it to be installed in tight spaces where larger sensors cannot fit, giving you more flexibility in integrating the sensor into your production line or testing equipment. The standard 1 m cable provides ample length for most installation setups, and KEYENCE also offers optional cable extensions for applications that require additional distance between the sensor head and amplifier unit.
5. Compatibility with GT2 Series Amplifiers
The GT2-P12K sensor head is compatible with the full range of KEYENCE GT2 series amplifier units, including the GT2-71N, GT2-72N, GT2-75N, and other popular models. This allows you to choose the amplifier with the output and communication features you need, such as analog output, digital output, Ethernet/IP communication, or PROFINET, to integrate the sensor seamlessly into your existing control system.
Common Applications
- Dimensional inspection of machined automotive and aerospace components
- Thickness measurement of plastic films, rubber sheets, and paper products
- Height and step difference measurement of assembled electronic components
- Position alignment check for production tooling and workholding fixtures
- Vibration and deflection measurement of moving machinery parts
- Flatness inspection of sheet metal and glass panels
- Defect detection for surface irregularities on molded plastic parts
- Gap and flush measurement for assembled automotive body panels
Why Buy From partsplc.com?
At partsplc.com, we specialize in supplying genuine KEYENCE industrial automation components to customers around the world. All of our KEYENCE products, including the GT2-P12K, are guaranteed to be 100% original authentic new, never refurbished. We maintain large inventory levels of popular KEYENCE parts, so we can ship most orders the same business day we receive payment, reducing lead times and getting your production line back up and running quickly.
We offer competitive pricing on all KEYENCE products, with bulk discount options available for large volume orders. Our experienced customer support team can answer any technical questions you have about the GT2-P12K, including compatibility with existing amplifier units, installation guidance, and application recommendations, to help you select the right part for your project. We ship to over 200 countries worldwide, with reliable tracked shipping options and full customs documentation to ensure smooth delivery to your location.
Ordering Information
Product Model: GT2-P12K
Brand: KEYENCE
Product Type: Contact Displacement Sensor Head
Condition: New, Original Genuine
Amplifier Unit: Sold Separately (requires GT2 series amplifier for operation)
Warranty: 1 Year Warranty
If you have any questions about the KEYENCE GT2-P12K or would like to request a quote, please contact our sales team today. We are happy to assist you with all of your industrial automation component needs.

