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Door contact sensor BLOW 4933# model HO-03i — magnetic reed switch for alarm systems
Summary description:
Wired door contact sensor BLOW 4933# (HO-03i) is a magnetic reed switch designed for security and alarm systems. It detects door or window opening by separating the magnet and reed contact. Compact form factor allows surface mounting on frames and sashes. Typical use: perimeter intrusion detection, access monitoring and integration with control panels.