https://thefiresafetyshop.com/product/tyco-zettler-835p-photo-detector/
Tyco 835P PHOTO DETECTOR - The Fire Safety Shop
Oct 15, 2026 - Tyco 516.835.052 835P Photo Detector The Tyco 835P (516.835.052) is a photo detector from the Minerva MX range of equipment. It has been designed to be both...
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