What is the difference between IR touch and capacitive touch?
**Operational Principles**
- Infrared (IR) touch uses beams of light; when interrupted by a finger/object, the touch position is detected. Supports up to 40-point multi-touch, ideal for group collaboration.
- Capacitive touch relies on electrical charge changes when a conductive object (e.g., finger) touches the screen, enabling precise handwriting.
**Performance**
- IR touch resists water, dust, and gloves, suitable for outdoor use and large displays (e.g., 86" teaching panels).
- Capacitive touch is faster (3-5ms response) but sensitive to moisture, requiring conductive input.
**Applications**
- IR: Education, outdoor signage, control rooms (rugged, multi-user).
- Capacitive: Retail kiosks, mobile screens (sleek, precise).
**Cost & Maintenance**
IR has higher upfront costs but lower maintenance; capacitive is cheaper to produce but needs occasional calibration.
For rugged group setups, choose IR; for precision-driven devices, pick capacitive. Explore at [www.cuhub.com](http://www.cuhub.com).
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