Overview
The Keyence FS-T2 is a fiber optic sensor amplifier designed as an expansion unit for one-line fiber optic sensing systems. Part of the FS-V/T/M series, this amplifier provides manual calibration and NPN output configuration, making it suitable for discrete sensing tasks in industrial automation and motion control environments.
Key Features
- One-touch calibration for quick setup and adjustment
- NPN output type for compatibility with PLC and controller logic inputs
- Compact polycarbonate housing for durability
- Red/green/orange LED indicator lights for operational status monitoring
- Low power consumption at 35 mA or less
- Selectable timer functions: ON-delay, OFF-delay, or timer OFF modes
Technical Specifications
- Power Supply: 12–24 VDC
- Current Consumption: 35 mA or less
- Output Type: NPN
- Calibration: Manual (one-touch)
- Timer Function: ON-delay 40 ms / OFF-delay 40 ms / Timer OFF (selectable)
- Housing Material: Polycarbonate
- Indicators: Red/green/orange LED lights
- Unit Type: 1-line expansion unit
- Weight: 0.20 lbs
Typical Applications
The FS-T2 is used in industrial sensing applications requiring discrete signal detection with fiber optic technology. Common uses include object detection on conveyor systems, part positioning, material flow monitoring, and any application where non-contact, electrically isolated sensing is beneficial. The low power consumption makes it ideal for distributed sensor networks.
Compatibility & Replacements
Compatible With
- Fiber optic sensor cables and probes from the FS-V/T/M series
- Industrial PLC systems and controllers with 12–24 VDC supply
- Standard 24 VDC industrial automation networks
- Systems requiring NPN logic-level inputs
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator before ordering. The FS-T2 is part of the legacy FS-V/T/M product line; Keyence recommends the FS-N40 series as a modern replacement for new installations.
Works With
- Keyence fiber optic sensor probes and cables
- Manual-calibration fiber optic sensor systems
- Industrial 24 VDC power supplies
- PLC and discrete relay control circuits accepting NPN digital inputs






