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1 SHEET IR PYRO FRESNEL LENS
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photo for larger views) |
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Item No: L10177
Price: $2.50
or 10 for $20.00
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| These were made to be used with the Pyroelectric infrared sensors in security devices such as burglar alarms. These lens arrays were made by Fresnel Technologies, Inc. There are 8 similar fresnel lenses on this 1 sheet. We don't have a clue about focal length or which devices these were made to fit. We have no way of testing them. |
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