Inductive Sensor Tesa GT21 Model 03210904, MPN 03210904

The Tesa GT21 inductive sensor Model 03210904 is a proximity sensor designed to detect metallic targets without physical contact. Built for integration in industrial automation and machinery control, this sensor delivers repeatable non-contact switching for presence detection, position sensing and simple object counting tasks. The compact design and robust sensing principle make it suitable for use in production lines, assembly stations and monitoring equipment where metal detection and reliable switching are required.

Advantages

The inductive sensing principle ensures operation in dirty, dusty or oily environments where optical sensors may fail. Non-contact detection reduces mechanical wear and maintenance needs. The sensor provides a stable switching response to metallic targets and can be mounted in confined spaces due to its compact form factor. Its compatibility with standard control systems simplifies wiring and integration into existing automation setups.

Suitable for

• Presence detection of metal parts on conveyors and feeders
• Position sensing of moving machine elements
• Counting metal components during assembly or packaging
• Integration into PLC-based automation and machine control
• Triggering safety interlocks or process monitoring systems

Key specifications

• Sensing principle: inductive (metal target detection)
• Detection type: non-contact proximity switching
• Typical applications: presence detection, position sensing, counting
• Environment: suitable for industrial conditions with dust, oil and contaminants
• Mounting: compact form factor for inline or flush mounting in tight spaces
• Output: standard switching output compatible with common control circuits

How to use

Install the sensor according to the machine manufacturer’s mounting guidelines, ensuring the sensing face is oriented toward the expected metal target path. Connect the sensor output and supply wires to the control system using proper cable shielding and grounding where required by your installation standards. Adjust the sensor position to achieve reliable switching at the desired sensing distance; if required, use a mounting bracket or shims to fine-tune alignment. Test the switching response with representative metal samples to confirm consistent operation before placing the sensor into continuous service.

Usage recommendations

For reliable long-term performance, avoid exposing the sensing face to direct mechanical impacts and follow recommended cable routing to prevent electrical interference. Periodic functional checks with actual process parts and proper grounding will help maintain stable detection in industrial environments.