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These ultrasonic proximity sensors generate a highly focused beam of sound that can access very tight spaces and openings. Just 0.5 in. in diameter and 3.5 to 4.0 in. long, these sensors are designed for small space applications. They are available either as UNAM 12U9914/S14D analog models with variable signals or UNAM 12P1914/S14D discrete (on/off) models. The analog sensors offer sensing distances up to 82 mm, while discrete models deliver sensing accuracy up to 70 mm.
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