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We offer over 8000+ total Dwyer products, including accessories, air velocity transmitters, bin vibrators, CO2/Temp (Duct) sensors, and more. Shop now!
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![Dwyer A3301 Pressure switch/gage | range .5-0-.5" w.c. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/a3000_0b890b56-a4c4-401c-8b88-d6620bd3d736_medium.jpg?v=1719998335)
A3301 | Pressure switch / gage | range .5-0-.5" w.c. | Dwyer
Brand: Dwyer
SKU: A3301
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![Dwyer A3302 Pressure switch/gage | range 1-0-1" w.c. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/a3000_e4c1d053-b28c-4dfe-aa99-f3de556d72f7_medium.jpg?v=1719998275)
A3302 | Pressure switch / gage | range 1-0-1" w.c. | Dwyer
Brand: Dwyer
SKU: A3302
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![Dwyer A3320 Pressure switch/gage | range 10-0-10" w.c. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/a3000_0f761006-820b-431c-b98c-88d8a403bea0_medium.jpg?v=1719998355)
A3320 | Pressure switch / gage | range 10-0-10" w.c. | Dwyer
Brand: Dwyer
SKU: A3320
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![Dwyer A3300-500PA Pressure switch/gage | range 250-0-250 Pa. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/a3000_d59b5b4c-d401-4850-a77b-c5e482e90e29_medium.jpg?v=1719998274)
A3300-500PA | Pressure switch / gage | range 250-0-250 Pa. | Dwyer
Brand: Dwyer
SKU: A3300-500PA
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![Dwyer A3300-3KPA Pressure switch/gage | range 1.5-0-1.5 kPa. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/a3000_1784d60c-6a06-494c-839c-5ed6a92bda19_medium.jpg?v=1719998285)
A3300-3KPA | Pressure switch / gage | range 1.5-0-1.5 kPa. | Dwyer
Brand: Dwyer
SKU: A3300-3KPA
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![Dwyer A3300-30MM Pressure switch/gage | range 15-0-15 mm w.c. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/a3000_ebb58bd5-2ef9-46ab-9d71-71b653e24062_medium.jpg?v=1719998325)
A3300-30MM | Pressure switch / gage | range 15-0-15 mm w.c. | Dwyer
Brand: Dwyer
SKU: A3300-30MM
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![Dwyer A3300-1KPA Pressure switch/gage | range .5-0-.5 kPa. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/a3000_656a8323-3ab5-4778-9e6b-86859d387940_medium.jpg?v=1719998325)
A3300-1KPA | Pressure switch / gage | range .5-0-.5 kPa. | Dwyer
Brand: Dwyer
SKU: A3300-1KPA
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![Dwyer A3300-20MM Pressure switch/gage | range 10-0-10 mm w.c. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/a3000_e559b396-1af8-4620-8a33-5ec374a5f145_medium.jpg?v=1719998355)
A3300-20MM | Pressure switch / gage | range 10-0-10 mm w.c. | Dwyer
Brand: Dwyer
SKU: A3300-20MM
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![Dwyer A3300-250PA Pressure switch/gage | range 125-0-125 Pa. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/a3000_2369ba74-b41c-4115-b366-62efd157ef4f_medium.jpg?v=1719998295)
A3300-250PA | Pressure switch / gage | range 125-0-125 Pa. | Dwyer
Brand: Dwyer
SKU: A3300-250PA
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![Dwyer A3300-0 Pressure switch/gage | range .25-0-.25" w.c. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/a3000_7e6fdc48-d2d2-4171-9835-934fa5c14d1d_medium.jpg?v=1719998360)
A3300-0 | Pressure switch / gage | range .25-0-.25" w.c. | Dwyer
Brand: Dwyer
SKU: A3300-0
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![Dwyer A3205 Pressure switch/gage | range 0-5 psi. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/a3000_18393d7f-e8ad-497c-a651-e409984d52df_medium.jpg?v=1719998296)
A3205 | Pressure switch / gage | range 0-5 psi. | Dwyer
Brand: Dwyer
SKU: A3205
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![Dwyer A3204 Pressure switch/gage | range 0-4 psi. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/a3000_f5f420a6-4ddd-4a70-9d06-ef6a6c920f5d_medium.jpg?v=1719998270)
A3204 | Pressure switch / gage | range 0-4 psi. | Dwyer
Brand: Dwyer
SKU: A3204
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![Dwyer A3201 Pressure switch/gage | range 0-1 psi. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/a3000_134f1e0e-8f93-4677-8533-72ea46af759b_medium.jpg?v=1719998279)
A3201 | Pressure switch / gage | range 0-1 psi. | Dwyer
Brand: Dwyer
SKU: A3201
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![Dwyer A3202 Pressure switch/gage | range 0-2 psi. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/a3000_f3dcfeaa-55a1-4bff-9730-7055a3cefea3_medium.jpg?v=1719998295)
A3202 | Pressure switch / gage | range 0-2 psi. | Dwyer
Brand: Dwyer
SKU: A3202
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![Dwyer A3040 Pressure switch/gage | range 0-40" w.c. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/a3000_7fc660a3-4a20-4598-ad29-f8815de6fb21_medium.jpg?v=1719998330)
A3040 | Pressure switch / gage | range 0-40" w.c. | Dwyer
Brand: Dwyer
SKU: A3040
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![Dwyer A3203 Pressure switch/gage | range 0-3 psi. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/a3000_12e9ac22-50ce-49c8-a9a3-098cdb293a3d_medium.jpg?v=1719998309)
A3203 | Pressure switch / gage | range 0-3 psi. | Dwyer
Brand: Dwyer
SKU: A3203
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![Dwyer A3100 Pressure switch/gage | range 0-100" w.c. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/a3000_e4275452-6a3f-459e-a338-bffb0bd9f560_medium.jpg?v=1720007111)
A3100 | Pressure switch / gage | range 0-100" w.c. | Dwyer
Brand: Dwyer
SKU: A3100
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![Dwyer A3150 Pressure switch/gage | range 0-150" w.c. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/a3000_93022e98-3beb-4aa6-af63-2dd1273ff358_medium.jpg?v=1719998304)
A3150 | Pressure switch / gage | range 0-150" w.c. | Dwyer
Brand: Dwyer
SKU: A3150
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![Dwyer A3080 Pressure switch/gage | range 0-80" w.c. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/a3000_9d4a03a2-7098-4bf3-8cd0-31db6dd42f28_medium.jpg?v=1719998316)
A3080 | Pressure switch / gage | range 0-80" w.c. | Dwyer
Brand: Dwyer
SKU: A3080
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![Dwyer A3060 Pressure switch/gage | range 0-60" w.c. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/a3000_b3aa549e-ca1c-4a93-935a-4eb2a7a925c9_medium.jpg?v=1719998255)
A3060 | Pressure switch / gage | range 0-60" w.c. | Dwyer
Brand: Dwyer
SKU: A3060
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