manometers
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![Dwyer MARK II 41-600PA-NIST Molded plastic manometer | range 20-0-600 Pa | blue fluid | 1.91 sp. gr. | with NIST Calibration certificate. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/mark_ii_700pa_600x600_1_2551a6c7-d54f-4546-adca-06a8bb90111a_medium.gif?v=1719999272)
MARK II 41-600PA-NIST | Molded plastic manometer | range 20-0-600 Pa | blue fluid | 1.91 sp. gr. | with NIST Calibration certificate. | Dwyer
Brand: Dwyer
SKU: MARK II 41-600PA-NIST
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![Dwyer MARK II 40-1 Molded plastic manometer | range .1-0-1.0" w.c. | red fluid | .826 sp. gr. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/mark_ii_700pa_600x600_1_feb3cd73-0cf7-4c1b-9a5a-0db745f203cc_medium.gif?v=1719999262)
MARK II 40-1 | Molded plastic manometer | range .1-0-1.0" w.c. | red fluid | .826 sp. gr. | Dwyer
Brand: Dwyer
SKU: MARK II 40-1
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![Dwyer MARK II MM-180 Molded plastic manometer | range 0-180 mm w.c. | blue fluid | 1.91 sp. gr. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/mark_ii_700pa_600x600_1_25ada2f1-fc74-433a-9548-99092fdc6d02_medium.gif?v=1719999262)
MARK II MM-180 | Molded plastic manometer | range 0-180 mm w.c. | blue fluid | 1.91 sp. gr. | Dwyer
Brand: Dwyer
SKU: MARK II MM-180
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![Dwyer MARK II 40-250PA Molded plastic manometer | range 10-0-250 Pa | red fluid | .826 sp. gr. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/mark_ii_700pa_600x600_1_fb58840f-1b85-4f70-9c2a-3a65ea2af99c_medium.gif?v=1719999257)
MARK II 40-250PA | Molded plastic manometer | range 10-0-250 Pa | red fluid | .826 sp. gr. | Dwyer
Brand: Dwyer
SKU: MARK II 40-250PA
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![Dwyer HM3531DLM110 Differential pressure manometer | range 0-245 psi | 0.05% accuracy. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/hm35_front_1000x1000_9dffdcb9-0004-43a6-9d99-d6bddb922766_medium.gif?v=1719999252)
HM3531DLM110 | Differential pressure manometer | range 0-245 psi | 0.05% accuracy. | Dwyer
Brand: Dwyer
SKU: HM3531DLM110
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![Dwyer MARK II 26 Molded plastic manometer | range 0-7" w.c. | blue fluid | 1.91 sp. gr. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/mark_ii_700pa_600x600_1_33fc48da-c8e8-4203-920e-a9e8371fd4e1_medium.gif?v=1719999243)
MARK II 26 | Molded plastic manometer | range 0-7" w.c. | blue fluid | 1.91 sp. gr. | Dwyer
Brand: Dwyer
SKU: MARK II 26
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![Dwyer HM3531DLB300 Differential pressure manometer | range 0-10" w.c. | 0.2% accuracy. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/hm35_front_1000x1000_63c3c704-021e-4e17-80d7-7cad37848928_medium.gif?v=1719999241)
HM3531DLB300 | Differential pressure manometer | range 0-10" w.c. | 0.2% accuracy. | Dwyer
Brand: Dwyer
SKU: HM3531DLB300
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![Dwyer MARK II 40-25MM-NIST Molded plastic manometer | range 0-26 mm w.c. | red fluid | .826 sp. gr. | with NIST Calibration certificate. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/mark_ii_700pa_600x600_1_medium.gif?v=1719999238)
MARK II 40-25MM-NIST | Molded plastic manometer | range 0-26 mm w.c. | red fluid | .826 sp. gr. | with NIST Calibration certificate. | Dwyer
Brand: Dwyer
SKU: MARK II 40-25MM-NIST
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![Dwyer HM3531DLK300 Differential pressure manometer | range 0-100 psi | 0.2% accuracy. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/hm35_front_1000x1000_93268b91-df5c-48e7-9e85-d7429701981a_medium.gif?v=1719999222)
HM3531DLK300 | Differential pressure manometer | range 0-100 psi | 0.2% accuracy. | Dwyer
Brand: Dwyer
SKU: HM3531DLK300
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![Dwyer HM3531GMZ310 Gage pressure manometer | range 0-1305 psi | 0.2% accuracy. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/hm35_front_1000x1000_d6bdb23f-c8cb-4392-907d-10eea3a3b46a_medium.gif?v=1719999217)
HM3531GMZ310 | Gage pressure manometer | range 0-1305 psi | 0.2% accuracy. | Dwyer
Brand: Dwyer
SKU: HM3531GMZ310
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![Dwyer 477B-3 Handheld digital manometer | 0 to 200" w.c. (0 to 49.82 kPa) | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/477b_front_1000x1000_a4d89c0e-a339-47db-9563-21be7faa713f_medium.gif?v=1719998093)
477B-3 | Handheld digital manometer | 0 to 200" w.c. (0 to 49.82 kPa) | Dwyer
Brand: Dwyer
SKU: 477B-3
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![Dwyer 490A-3 Wet/Wet handheld digital manometer | 0 to 50 psi (0 to 344.8 kPa) | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/490a_family_1000x1000_ce443ba5-af77-47ad-a125-04d707899aca_medium.gif?v=1719998035)
490A-3 | Wet / Wet handheld digital manometer | 0 to 50 psi (0 to 344.8 kPa) | Dwyer
Brand: Dwyer
SKU: 490A-3
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![Dwyer 1223-24-D U-tube manometer | range 12-0-12" w.c. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/1221_1222_1223_family_1000x1000_1_2451d5e3-2db2-4b95-a410-1339b0ce02d2_medium.gif?v=1719997995)
1223-24-D | U-tube manometer | range 12-0-12" w.c. | Dwyer
Brand: Dwyer
SKU: 1223-24-D
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![Dwyer 490A-5 Wet/Wet handheld digital manometer | 0 to 500 psi (0 to 3448 kPa) | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/490a_family_1000x1000_ecab1d5f-a2f0-4b57-8d9c-6f45dc48f37c_medium.gif?v=1719997904)
490A-5 | Wet / Wet handheld digital manometer | 0 to 500 psi (0 to 3448 kPa) | Dwyer
Brand: Dwyer
SKU: 490A-5
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![Dwyer 477B-2 Handheld digital manometer | 0 to 40" w.c. (0 to 9.96 kPa) | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/477b_front_1000x1000_0e46fa4a-29b7-4c23-8e6e-0999d497baa5_medium.gif?v=1719997868)
477B-2 | Handheld digital manometer | 0 to 40" w.c. (0 to 9.96 kPa) | Dwyer
Brand: Dwyer
SKU: 477B-2
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![Dwyer 490A-1 Wet/Wet handheld digital manometer | 0 to 15 psi (0 to 103.4 kPa) | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/490a_family_1000x1000_f6a51b1e-3d1b-4803-b0ac-5982caf2c3ac_medium.gif?v=1719997843)
490A-1 | Wet / Wet handheld digital manometer | 0 to 15 psi (0 to 103.4 kPa) | Dwyer
Brand: Dwyer
SKU: 490A-1
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![Dwyer 478A-1 Digital differential manometer | range -60 to 60" w.c. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/476a-478a_1000x1000_46c79b63-d94e-45f7-8417-638d88cccb25_medium.jpg?v=1719997838)
478A-1 | Digital differential manometer | range -60 to 60" w.c. | Dwyer
Brand: Dwyer
SKU: 478A-1
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![Dwyer 477AV-0 Digital manometer | range 0-10.00" w.c. | air velocity/flow modes. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/477av_front_1000x1000_2_6f02f2d8-892e-4dc0-bcb9-f01c2edca77b_medium.gif?v=1719997828)
477AV-0 | Digital manometer | range 0-10.00" w.c. | air velocity / flow modes. | Dwyer
Brand: Dwyer
SKU: 477AV-0
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![Dwyer 477AV-6 Digital manometer | range 0-30.00 psi | air velocity/flow modes. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/477av_front_1000x1000_2_a6448d36-81b9-4f0e-bbb0-8b4723440da0_medium.gif?v=1719997838)
477AV-6 | Digital manometer | range 0-30.00 psi | air velocity / flow modes. | Dwyer
Brand: Dwyer
SKU: 477AV-6
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![Dwyer 477AV-1 Digital manometer | range 0-20.00" w.c. | air velocity/flow modes. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/477av_front_1000x1000_2_9ca310d0-e7c3-4510-bf63-83f9ad657f58_medium.gif?v=1719997818)
477AV-1 | Digital manometer | range 0-20.00" w.c. | air velocity / flow modes. | Dwyer
Brand: Dwyer
SKU: 477AV-1
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