FIELD: burglar alarms; blocking vitrified surfaces. SUBSTANCE: vibrating-reed sensor has first case with glass bulb secured therein that accommodates movable contact strip and first and second fixed contact strips normally closed to the latter and used as first and second contacts of sensor alarm circuit, respectively; sensor also has second case that accommodates magnet. EFFECT: enhanced functional reliability of sensor. 1 cl, 1 dwg
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Authors
Dates
2003-08-10—Published
2001-05-23—Filed