Delivery to Pakistan
Shipping via Leopards
1-3 Business Days (Normally)
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Delivery to US
Shipping via DHL, UPS, or FedEx.
3-12 Business Days (Normally)
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Technical data
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Description:
Consisting of an infrared LED and a counterpart of an NPN photo transistor, poured into a black thermoplastic housing with an air gap between the two components. The photo transistor switches when an opaque object is moving through this air gap and interrupts the infra red beam.
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