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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 3030MR Pressure switch/gage | range 0-30" w.c. | 1.0 minor divisions. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/3000mr_family_large_95fdcbe4-3920-4c74-b7f3-3c9d89eba3c2_medium.gif?v=1719997738)
3030MR | Pressure switch / gage | range 0-30" w.c. | 1.0 minor divisions. | Dwyer
Brand: Dwyer
SKU: 3030MR
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![Dwyer 3020MR Pressure switch/gage | range 0-20" w.c. | .50 minor divisions. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/3000mr_family_large_9ad3e81a-6c7d-44a3-830c-3481dc3141b1_medium.gif?v=1719997738)
3020MR | Pressure switch / gage | range 0-20" w.c. | .50 minor divisions. | Dwyer
Brand: Dwyer
SKU: 3020MR
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![Dwyer 3015MRS Pressure switch/gage | range 0-15" w.c. | .50 minor divisions. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/3000mr_family_large_ed1f1b7b-c2d5-42ca-86d2-acf84450de6b_medium.gif?v=1719997678)
3015MRS | Pressure switch / gage | range 0-15" w.c. | .50 minor divisions. | Dwyer
Brand: Dwyer
SKU: 3015MRS
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![Dwyer 3015MR Pressure switch/gage | range 0-15" w.c. | .50 minor divisions. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/3000mr_family_large_35467ccc-6ba6-425d-a65d-a1ba67323a71_medium.gif?v=1719997688)
3015MR | Pressure switch / gage | range 0-15" w.c. | .50 minor divisions. | Dwyer
Brand: Dwyer
SKU: 3015MR
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![Dwyer 3010MRS Pressure switch/gage | range 0-10" w.c. | .20 minor divisions. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/3000mr_family_large_11360f95-6b68-488d-8ea0-fdaf457007d6_medium.gif?v=1719997688)
3010MRS | Pressure switch / gage | range 0-10" w.c. | .20 minor divisions. | Dwyer
Brand: Dwyer
SKU: 3010MRS
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![Dwyer 3005MR Pressure switch/gage | range 0-5" w.c. | .10 minor divisions. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/3000mr_family_large_3953efd1-de68-4b8d-9ab4-0511295a54ea_medium.gif?v=1719997737)
3005MR | Pressure switch / gage | range 0-5" w.c. | .10 minor divisions. | Dwyer
Brand: Dwyer
SKU: 3005MR
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![Dwyer 3005MRS Pressure switch/gage | range 0-5" w.c. | .10 minor divisions. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/3000mr_family_large_2fb1663f-289d-4928-814c-acfcb2a5960f_medium.gif?v=1719997703)
3005MRS | Pressure switch / gage | range 0-5" w.c. | .10 minor divisions. | Dwyer
Brand: Dwyer
SKU: 3005MRS
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![Dwyer 3003MR Pressure switch/gage | range 0-3" w.c. | .10 minor divisions. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/3000mr_family_large_269b73a8-c656-480c-ab33-eb8c04e44f6d_medium.gif?v=1719997668)
3003MR | Pressure switch / gage | range 0-3" w.c. | .10 minor divisions. | Dwyer
Brand: Dwyer
SKU: 3003MR
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![Dwyer 3010MR Pressure switch/gage | range 0-10" w.c. | .20 minor divisions. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/3000mr_family_large_6d78f50a-a1eb-4f70-a85a-c356a91bb6e0_medium.gif?v=1719997657)
3010MR | Pressure switch / gage | range 0-10" w.c. | .20 minor divisions. | Dwyer
Brand: Dwyer
SKU: 3010MR
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![Dwyer 3003MRS Pressure switch/gage | range 0-3" w.c. | .10 minor divisions. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/3000mr_family_large_34c7776b-67bb-42f9-ad6a-8ea33404cbbf_medium.gif?v=1719997734)
3003MRS | Pressure switch / gage | range 0-3" w.c. | .10 minor divisions. | Dwyer
Brand: Dwyer
SKU: 3003MRS
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![Dwyer 3002MRS Pressure switch/gage | range 0-2" w.c. | .05 minor divisions. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/3000mr_family_large_926bb0bb-3f24-4352-8b41-5fcb9256ee10_medium.gif?v=1719997693)
3002MRS | Pressure switch / gage | range 0-2" w.c. | .05 minor divisions. | Dwyer
Brand: Dwyer
SKU: 3002MRS
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![Dwyer 3002MR Pressure switch/gage | range 0-2" w.c. | .05 minor divisions. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/3000mr_family_large_2aa12adf-77a6-4988-9898-a8cdcb6a3374_medium.gif?v=1719997677)
3002MR | Pressure switch / gage | range 0-2" w.c. | .05 minor divisions. | Dwyer
Brand: Dwyer
SKU: 3002MR
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![Dwyer 3001MRS Pressure switch/gage | range 0-1" w.c. | .02 minor divisions. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/3000mr_family_large_6f421582-5dd1-402a-ae87-0a952729122e_medium.gif?v=1719997656)
3001MRS | Pressure switch / gage | range 0-1" w.c. | .02 minor divisions. | Dwyer
Brand: Dwyer
SKU: 3001MRS
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![Dwyer 3000MRS-6MM Pressure switch/gage | range 0-6 mm w.c. | .20 minor divisions. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/3000mr_family_large_46a0b9e4-a1d0-4c2a-8956-cc4d3a68ea35_medium.gif?v=1719997723)
3000MRS-6MM | Pressure switch / gage | range 0-6 mm w.c. | .20 minor divisions. | Dwyer
Brand: Dwyer
SKU: 3000MRS-6MM
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![Dwyer 3001MR Pressure switch/gage | range 0-1" w.c. | .02 minor divisions. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/3000mr_family_large_cb639ba7-fb66-4b06-8a80-e52a253ade9c_medium.gif?v=1719997758)
3001MR | Pressure switch / gage | range 0-1" w.c. | .02 minor divisions. | Dwyer
Brand: Dwyer
SKU: 3001MR
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![Dwyer 3000MRS-500PA Pressure switch/gage | range 0-500 Pa | 10.0 minor divisions. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/3000mr_family_large_7ffed2f5-1d46-42b6-b1c7-16280cb03410_medium.gif?v=1719997698)
3000MRS-500PA | Pressure switch / gage | range 0-500 Pa | 10.0 minor divisions. | Dwyer
Brand: Dwyer
SKU: 3000MRS-500PA
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![Dwyer 3000MRS-60PA Pressure switch/gage | range 0-60 Pa | 2.0 minor divisions. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/3000mr_family_large_d0cbd2b3-40dd-4693-a9e0-90f5f0ee7f81_medium.gif?v=1719997652)
3000MRS-60PA | Pressure switch / gage | range 0-60 Pa | 2.0 minor divisions. | Dwyer
Brand: Dwyer
SKU: 3000MRS-60PA
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![Dwyer 3000MRS-4KPA Pressure switch/gage | range 0-4 kPa | .10 minor divisions. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/3000mr_family_large_5f5017c1-3a5d-4639-b37a-6b8eb4d67fcc_medium.gif?v=1719997703)
3000MRS-4KPA | Pressure switch / gage | range 0-4 kPa | .10 minor divisions. | Dwyer
Brand: Dwyer
SKU: 3000MRS-4KPA
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![Dwyer 3000MRS-50MM Pressure switch/gage | range 0-50 mm w.c. | 1.0 minor divisions. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/3000mr_family_large_a38fcf7d-bdd0-4a50-b044-e1589683f3cc_medium.gif?v=1719997693)
3000MRS-50MM | Pressure switch / gage | range 0-50 mm w.c. | 1.0 minor divisions. | Dwyer
Brand: Dwyer
SKU: 3000MRS-50MM
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![Dwyer 3000MRS-25MM Pressure switch/gage | range 0-25 mm w.c. | .50 minor divisions. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/3000mr_family_large_fadad9f3-b93d-457f-b094-a822ddf8b292_medium.gif?v=1719997682)
3000MRS-25MM | Pressure switch / gage | range 0-25 mm w.c. | .50 minor divisions. | Dwyer
Brand: Dwyer
SKU: 3000MRS-25MM
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![Dwyer 3000MRS-3KPA Pressure switch/gage | range 0-3 kPa | .10 minor divisions. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/3000mr_family_large_7f21727d-f11f-4c93-82ab-da827f0fea0c_medium.gif?v=1719997657)
3000MRS-3KPA | Pressure switch / gage | range 0-3 kPa | .10 minor divisions. | Dwyer
Brand: Dwyer
SKU: 3000MRS-3KPA
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![Dwyer 3000MRS-20CM Pressure switch/gage | range 0-20 cm w.c. | .50 minor divisions. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/3000mr_family_large_57117120-6bb5-4b1a-ad8d-a24b3c01eb34_medium.gif?v=1719997767)
3000MRS-20CM | Pressure switch / gage | range 0-20 cm w.c. | .50 minor divisions. | Dwyer
Brand: Dwyer
SKU: 3000MRS-20CM
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![Dwyer 3000MRS-1KPA Pressure switch/gage | range 0-1 kPa | .02 minor divisions. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/3000mr_family_large_7f93b2dc-83d2-408f-9e84-cf38f23d4e43_medium.gif?v=1719997703)
3000MRS-1KPA | Pressure switch / gage | range 0-1 kPa | .02 minor divisions. | Dwyer
Brand: Dwyer
SKU: 3000MRS-1KPA
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![Dwyer 3000MRS-250PA Pressure switch/gage | range 0-250 Pa | 5.0 minor divisions. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/3000mr_family_large_6241e4dc-8579-44f1-a1d9-295fe2dfb397_medium.gif?v=1719997672)
3000MRS-250PA | Pressure switch / gage | range 0-250 Pa | 5.0 minor divisions. | Dwyer
Brand: Dwyer
SKU: 3000MRS-250PA
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MA-418-500 | Act (MA-418-500): Elec, 2Pos, SR, 120 VAC, TB, 60 in-lb, Rotary, Auxiliary Switch: 1 SPDT, N1, Erie | Schneider Electric
Brand: Schneider Electric
SKU: MA-418-500![Schneider Electric MA-418 Act (MA-418): Elec, 2Pos, SR, 120 VAC, TB, 60 in-lb, Rotary, N1, Erie | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/MA-4_c6d3be61-0ef2-433b-830d-9bec9e29b3e0_large.jpg?v=1719925296)
MA-418 | Act (MA-418): Elec, 2Pos, SR, 120 VAC, TB, 60 in-lb, Rotary, N1, Erie | Schneider Electric
Brand: Schneider Electric
SKU: MA-418![Veris PW2XX05S Pressure | Wet | NEMA 4 | 0-250PSID | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/PW2XX05S_large.jpg?v=1720029918)
PW2XX05S | Pressure | Wet | NEMA 4 | 0-250PSID | Veris
Brand: Veris
SKU: PW2XX05S![Veris E50B1 DIN Energy Meter | VAR Pulse Out | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/E50B1_468e105f-c937-40fd-b47e-8b7eebfadb24_large.jpg?v=1720029721)
E50B1 | DIN Energy Meter | VAR Pulse Out | Veris
Brand: Veris
SKU: E50B1![Contemporary Controls EIS8-100T 8-Port 10/100Mbps UL-864 EIS Switch | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/eis_f8fd4b1c-b511-458d-aa13-9e5d06cc2e98_large.jpg?v=1720006938)
EIS8-100T | 8-Port 10/100Mbps UL-864 EIS Switch | Contemporary Controls
Brand: Contemporary Controls
SKU: EIS8-100T![Neptronic SHS80-C Duct Mnt Humidity/High Limit | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/SKE4-SKS4_SHS80_d0f055ef-aed4-412c-bac8-68bfbd0ae0f2_large.png?v=1717516288)
SHS80-C | Duct Mnt Humidity/High Limit | Neptronic
Brand: Neptronic
SKU: SHS80-C![Functional Devices RIBW01B-EN3 EnOcean 902 Mhz Enclosed Relay 20Amp 120Vac 2-Way Wireless Dry-Cont. Input | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/RIBW01B-EN3_large.jpg?v=1719987683)
RIBW01B-EN3 | EnOcean 902 Mhz Enclosed Relay 20Amp 120Vac 2-Way Wireless Dry-Cont. Input | Functional Devices
Brand: Functional Devices
SKU: RIBW01B-EN3