These sensors are for use with Manometers, Magnehelic® Gages, Pressure Switches and other Controllers to pick up or sense static pressure drop across air filters and cooling coils, blower input and discharge pressures, etc. The angled tips shown have 4" insertion depth. Each has four radially drilled .040" sensing holes. All except Model A-303 mount in 3/8" hole in duct. For portable use, a magnet holds No. A-303 in place. No. A-305 is used where a very low actuation or sensing point is required on a pressure switch or gage or where response time is critical. No. A-307 and A-308 are suitable for use in low velocity systems or where the need for accuracy is less critical.

POPULAR MODELS

Model Number	Description
A-301	Static pressure tip, for 1/4" metal tubing connection.
A-301-A	Static pressure tip, for 1/4" metal tubing connection with 6" insertion depth.
A-301-B	Static pressure tip, for 1/4" metal tubing connection with 8" insertion depth.
A-301-C	Static pressure tip, for 1/4" metal tubing connection with 12" insertion depth.
A-301-SS	Static pressure tip, for 1/4" metal tubing connection in stainless steel.
A-302	Static pressure tip, for 3/16" and 1/8" ID plastic or rubber tubing.
A-302-A	Static pressure tip, for 3/16" and 1/8" ID plastic or rubber tubing with 6" insertion depth.
A-303	Portable static pressure tip, for 3/16" ID rubber or plastic tubing with 4" insertion.
A-304	Duct connector.
A-305	Static pressure tip, low resistance application, furnished with two (2) hex jam nuts and two (2) mounting washers for duct mounting and with 1/8" NPT pipe thread for pressure connection.
A-305-SS	Static pressure tip, low resistance application, furnished with two (2) hex jam nuts and two (2) mounting washers for duct mounting and with 1/8" NPT pipe thread for pressure connection in stainless steel.
A-306	Outdoor static pressure sensor, provides average outdoor pressure signal for reference in building pressurization applications, includes sensor, 50 ft vinyl tubing, mounting bracket and hardware.
A-307	Static pressure fitting, for 1/4" metal tubing connection.
A-307-SS	Static pressure fitting, for 1/4" metal tubing connection in stainless steel.
A-308	Static pressure fitting, for 3/16" and 1/8" ID plastic or rubber tubing.
A-345	Flange for mounting A-301, A-302, A-307, A-308 or 1/8" dia Pitot tubes with compression fitting when interior of duct is not accessible, aluminum, with gasket and sheet metal screws.
A-414	SS clean room pressure sensor.
A-417	Static pressure pickup, for use in clean rooms, 100 micron filter picks up static pressure, stainless steel wall plate fits 2" x 4" electrical box, sealed with foam gasket, screws included. Barbed brass fitting holds 1/8" to 5/32" ID tubing.
A-418	Static pressure pickup, room mount with Delta style plastic enclosure fits 2" x 4" electrical box, mesh screen hides static pressure pickup port, clean connection to 1/8" to 5/32" ID tubing and pressure sensor. Sealed with foam gasket, screws included.
A-419	Static pressure pickup ceiling mount, plate rests on top of standard 3/4" thick ceiling tile while 100 micron filter faces down through 5/8" hole in tile, screws included for optional mounting to junction box, barbed fitting holds 1/8" to 5/32" ID tubing.
A-420	Static pressure pickup for roof/outside mount, NEMA 4X (IP66) rated structure withstands harsh environmental elements, structure is 3-5/8" across and 2-1/2" deep, EMT conduit fitting is 1/2", pressure connection is brass barbed fitting for 1/4" tubing.
A-421	Static pressure tip measures duct static air pressure, assembly includes 6" probe, silicon rubber house and screws, built-in surge damper ensures stable readings, pressure spike reducer can be added to further smooth over pressure fluctuations.