The KEYENCE SH-108, commonly referenced with the R-8 designation, is a compact, high-performance reflector designed specifically for use with LV Series laser sensors in retro-reflective configurations. In this sensing mode, the LV emitter and receiver are integrated on the same head; the SH-108 returns the emitted red laser beam to the receiver, creating a robust detection curtain that simplifies installation compared with through-beam pairs. Because the optical properties and surface finish of the SH-108 are tuned for 660 nm visible light, it provides strong signal margins even when the target surface is dark, low contrast, or partially transparent—situations that can challenge diffuse sensing.

A key advantage of the SH-108 is its compact footprint. The thin, lightweight plate fits into crowded machine frames, guarding, and small fixtures without forcing major mechanical changes. Despite its size, the reflector offers high effective reflectance and wide acceptance angles, so alignment is quick and forgiving. Maintenance teams can typically achieve reliable switching with only coarse visual alignment, then fine-tune the LV amplifier sensitivity for optimal excess gain. This ease of setup shortens commissioning time on packaging lines, parts feeders, and general material-handling equipment.

Industrial durability is central to the SH-108’s design. The reflector surface resists common plant contaminants such as dust and oil mist, maintaining stable optical return over long service intervals. A rigid backing and secure mounting holes help the unit hold alignment under vibration, while the flat, non-powered construction eliminates wiring and reduces potential failure points. When cleaning is required, the smooth face allows quick wipe-downs to restore peak performance.

Application flexibility is another hallmark. Paired with LV Series heads (including spot and small-beam variants), the SH-108 supports long sensing distances with clear “object present/absent” transitions across conveyors or chutes. It is equally effective for counting cartons, detecting tote presence, verifying package gaps, or guarding infeed zones where space prevents a through-beam solution. For translucent films or glossy packaging, users can adjust LV timing modes and thresholds to exploit the reflector’s strong return while minimizing false trips from specular highlights.

Overall, the SH-108 (R-8) reflector provides a balanced combination of optical efficiency, compact size, and industrial robustness. When matched with KEYENCE LV Series sensors, it delivers an easy-to-install, low-maintenance path to highly reliable retro-reflective detection in demanding automation environments.