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QBM3120-5D Air duct differential pressure sensor with display, 0…500 Pa, DC 4…20 mA
QBM4100-1D SIEMENS Air duct differential pressure sensor
QBM81-3 Diff. Air Pressure Switch Siemens
QBM81-5 DPS SENSOR QBM81-5 SIEMENS
QBM81-50 SIEMENS Differential pressure monitor, 1000...5000 Pa
QF250A | US2:QF250A BRKR 50A 2P 120/240V 10K QPFB GFCI 5MA