Through-beam sensor uses micro-ultrasonic elements and has a maximum detecting range of 20’’. Response time is 10 ms with object resolution of 10x30mm. Uses LED indicators.
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The CE certified 7851 Ultrasonic Sensor from Automatic Timing & Controls (Lancaster, PA) is claimed to be ideal for detecting any opaque or transparent objects made of film, plastic or glass.
Through-beam sensor uses micro-ultrasonic elements and has a maximum detecting range of 20’’. Response time is 10 ms with object resolution of 10x30mm. Uses LED indicators.