Detecting damage to bulk material
Detection circuit
Detection of presence or absence of flames
Detection of products of combustion
Detector device for converting A.C. inputs to an D.C. output and
Detector for alarm system
Detector for detecting and locating the source of a contaminatin
Detector system
Device and method for determining the presence of resonant mater
Device for automatically detecting overload on aerial ladder tru
Device for detecting short-circuit between electrodes in electro
Device for indicating angular position and depth of a towed vehi
Device for indicating any wire breaking in parallel connected pl
Device for restricting the operation range of cranes
Device for the transmission over a distance of indications in pa
Differential capacitance measuring circuit
Differential capacitive position encoder
Differential pressure visual and audible warning signal device f
Differential relay arrangement for determining when one of two c
Digital signal generator