POPULAR MODELS

Model Number	Description
666-1	Rangeable differential pressure transmitter, range 0-0.1" w.c, 0 to ±0.05" w.c.
666-2	Rangeable differential pressure transmitter, range 0-0.25" w.c., 0-0.5" w.c., 0-1.0" w.c., 0 to ±0.125" w.c., 0 to ±0.25" w.c., 0 to ±0.5" w.c.
666-3	Rangeable differential pressure transmitter, range 0-1.25" w.c., 0-2.5" w.c., 0-5" w.c., 0 to ±0.625" w.c., 0 to ±1.25" w.c., 0 to ±2.5" w.c.
666-4	Rangeable differential pressure transmitter, range 0-7.5" w.c., 0-15" w.c., 0-30" w.c., 0 to ±3.75" w.c., 0 to ±7.5" w.c., 0 to ±15" w.c.