Sensors Differential pressure Sensor
![Image for Air Quality Sensors](http://blackhawksupply.com/cdn/shop/files/ultravation-as-ih-1001_100x.jpg?v=1720029593)
![Image for Humidity Sensors](http://blackhawksupply.com/cdn/shop/files/A6V10320551_en_100x.jpg?v=1723900536)
![Image for Air Velocity Sensors](http://blackhawksupply.com/cdn/shop/files/A6V10256787_en_100x.jpg?v=1723900516)
![Image for Thermostats](http://blackhawksupply.com/cdn/shop/files/ecobee-eb-emssi-01_48df1219-0270-4f07-af67-47cc3ee72019_100x.jpg?v=1720730915)
![Image for Pressure Sensors](http://blackhawksupply.com/cdn/shop/files/PW2LX04S_2aa99148-fb66-4e40-a711-7a6bf5dbf2d8_100x.jpg?v=1723900869)
![Image for Room Humidity Sensors](http://blackhawksupply.com/cdn/shop/files/VT8650U5000B_100x.jpg?v=1723901181)
![Image for Flow Sensors](http://blackhawksupply.com/cdn/shop/files/FS2_600x600_5336f1a8-d144-4184-8608-eb9b756e644b_100x.gif?v=1723861785)
![Image for Network Sensors](http://blackhawksupply.com/cdn/shop/files/BAC-5051E-medium_100x.jpg?v=1720012548)
![Image for Duct Sensors](http://blackhawksupply.com/cdn/shop/files/A6V10219142_en_100x.jpg?v=1723900530)
![Image for Duct Temperature Sensors](http://blackhawksupply.com/cdn/shop/files/aci-a-tt100-lt-d-8-2-gd_1b647ff8-9a71-4bb0-80e7-b1a9242bcfe2_100x.png?v=1719982702)
![Image for Room Temperature Sensors](http://blackhawksupply.com/cdn/shop/files/A6V10260204_en_5fcfc329-6809-40f2-9f25-01d9029d73f5_100x.jpg?v=1723900511)
![Image for Room Humidity/Temperature Sensors](http://blackhawksupply.com/cdn/shop/files/logo_aci_product_4c07a5a6-75de-4335-80bb-a190ee2b2a96_100x.png?v=1719982921)
![Image for Duct Humidity Sensors](http://blackhawksupply.com/cdn/shop/files/aci-a-rh2-1k-2w-d-nist_c053cdf0-84ce-4aba-8dc0-96e222748d81_100x.jpg?v=1719982450)
![Image for Accessories](http://blackhawksupply.com/cdn/shop/files/A6V10256764_en_100x.jpg?v=1723900207)
![Image for Humidity & Temperature Sensors](http://blackhawksupply.com/cdn/shop/files/HU-226-3-VDC-12_22c8888c-36c1-4e0c-88ff-47489b4d620a_100x.png?v=1720012853)
![Image for Temperature & Humidity Sensors](http://blackhawksupply.com/cdn/shop/files/PIC_AM_22DTH-5.._01_4C-product_retina_bdd3b394-8f8a-46a6-b3be-24dbdc502657_100x.jpg?v=1723858656)
![Image for Liquid Level Sensors](http://blackhawksupply.com/cdn/shop/files/F59H-1C_100x.png?v=1723867978)
![Image for Water Detection](http://blackhawksupply.com/cdn/shop/files/Senva_Family_WD_100x.jpg?v=1723872342)
![Image for Wireless Sensors](http://blackhawksupply.com/cdn/shop/files/PIC_AM_22UTH-550X...560X_01_4C-product_retina_bc5ec978-c848-4b0a-94e9-0db28aff9978_100x.jpg?v=1723858692)
![Image for Networked Sensors](http://blackhawksupply.com/cdn/shop/files/STE-8201W80-medium_100x.jpg?v=1720012668)
![Image for Air Flow Sensors](http://blackhawksupply.com/cdn/shop/files/sce-n12fga66_100x.png?v=1723871159)
![Image for Gas Detection](http://blackhawksupply.com/cdn/shop/files/aci-q6-co-h2-100l_905be93c-e90a-4247-9774-e5e64c2a4389_100x.jpg?v=1719983058)
![Image for Enclosures](http://blackhawksupply.com/cdn/shop/files/siemens_logo_3f0a5f01-5c23-479b-873e-e0194002ca68_100x.jpg?v=1723900519)
![Image for Smoke Sensors](http://blackhawksupply.com/cdn/shop/files/aci-rt-3000-p_c3917f02-db34-450d-8ddf-de5d220f5ba4_100x.png?v=1719983110)
![Image for Sensor Accessories](http://blackhawksupply.com/cdn/shop/files/aci-universal-clip-6_63584f76-a29f-41a9-86ea-b829da162614_100x.jpg?v=1719983203)
![Image for Room Sensors](http://blackhawksupply.com/cdn/shop/files/Senva_Family_AQW_d13dbeab-df71-4ec7-9af9-da03b6ffc002_100x.png?v=1720021017)
![Image for Relays](http://blackhawksupply.com/cdn/shop/files/VC3504E5000_100x.jpg?v=1723901158)
![Image for Thermometers](http://blackhawksupply.com/cdn/shop/files/TG53_f97df607-acc5-4057-b310-491162de664b_100x.jpg?v=1720032207)
![Image for Data Loggers](http://blackhawksupply.com/cdn/shop/files/dw_usb_lcd_1000x1000_a57bb880-d892-42fd-8dd1-7914ea2b78e3_100x.gif?v=1719998923)
![Image for Flame Sensors](http://blackhawksupply.com/cdn/shop/files/578623_100x.jpg?v=1720025028)
![Image for Differential Pressure Sensors](http://blackhawksupply.com/cdn/shop/files/sce-n12fga33_100x.png?v=1723871140)
![Image for Covers](http://blackhawksupply.com/cdn/shop/files/VT73XX_100x.png?v=1720030229)
![Image for Timer Sensors](http://blackhawksupply.com/cdn/shop/files/THR-131-j_a290dae0-cbe7-49ed-b4a4-cac572ca7d2c_100x.jpg?v=1720054312)
![Image for Current/Voltage Sensors](http://blackhawksupply.com/cdn/shop/files/TH4-P1R1T0_76398a8d-df4f-4831-803d-0f441cc9334b_100x.jpg?v=1720047140)
![Image for Current & Voltage Sensors](http://blackhawksupply.com/cdn/shop/files/TH4-P2R0T0_ff69cba0-733a-4169-83a3-ea1d1eedbf1b_100x.jpg?v=1720046961)
View Details
![Siemens 590-781 Differential Pressure Sensor, Transmitter, .65" , 0.4%, 4-20mA, Conduit Cover | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/590-781_medium.jpg?v=1720022629)
590-781 | Differential Pressure Sensor, Transmitter, .65" , 0.4%, 4-20mA, Conduit Cover | Siemens
Brand: Siemens
SKU: 590-781
View Details
![Siemens 590-507 Differential Pressure Sensor in Conduit Box, 1% FS, 2" WC, 0 to 10 | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/logo_acc50460-43f8-45df-bd06-f180e0b098af_medium.png?v=1720022620)
590-507 | Differential Pressure Sensor in Conduit Box, 1% FS, 2" WC, 0 to 10 | Siemens
Brand: Siemens
SKU: 590-507
View Details
![Siemens 590-501 590 Series Differential Pressure Sensor, 5" Water Column | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/logo_d3171a32-4a5c-4240-bc2c-5250e7fb63e3_medium.png?v=1720022613)
590-501 | 590 Series Differential Pressure Sensor, 5" Water Column | Siemens (OBSOLETE)
Brand: Siemens
SKU: 590-501
View Details
![Siemens 590-780 Differential Pressure Sensor, Transmitter, 1", 0.4%, 4 to 20 mA, Conduit Cover | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/590-780_medium.jpg?v=1720022619)
590-780 | Differential Pressure Sensor, Transmitter, 1", 0.4%, 4 to 20 mA, Conduit Cover | Siemens
Brand: Siemens
SKU: 590-780
View Details
![Siemens 590-502 590 Series Differential Pressure Sensor, 2" Water Column | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/logo_d804ad17-2089-4904-850e-8ad7818f17d4_medium.png?v=1720022615)
590-502 | 590 Series Differential Pressure Sensor, 2" Water Column | Siemens
Brand: Siemens
SKU: 590-502
View Details
![Siemens QBM3100U10 Dry Differential Pressure Sensor, 0-10" WC | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/A6V10387420_en_fe60511c-0d81-4716-8fd6-abe26cc6e8af_medium.jpg?v=1723900549)
QBM3100U10 | Dry Differential Pressure Sensor, 0-10" WC | Siemens
Brand: Siemens
SKU: QBM3100U10
View Details
![Siemens QBM81-3 Differential Pressure Switch,0.08-0.8 WC | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/A6V10218394_en_559302b8-f81c-4fbd-b0bd-35be5b67e947_medium.jpg?v=1723900533)
QBM81-3 | Differential Pressure Switch, 0.08-0.8 WC | Siemens
Brand: Siemens
SKU: QBM81-3
View Details
![Siemens QBM3100U5 Dry Differential Pressure Sensor, 0-5" WC | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/A6V10387420_en_medium.jpg?v=1723900518)
QBM3100U5 | Dry Differential Pressure Sensor, 0-5" WC | Siemens (OBSOLETE)
Brand: Siemens
SKU: QBM3100U5
View Details
![Siemens 590-505 590 Series Differential Pressure Sensor, +/- 0.25" Water Column | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/590-505_medium.jpg?v=1720022580)
590-505 | 590 Series Differential Pressure Sensor, + / - 0.25" Water Column | Siemens
Brand: Siemens
SKU: 590-505
View Details
![Siemens QBM3100U025U Dry Diferential Pressure Sensor, 0-0.25" WC | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/A6V10387420_en_2b4d27d8-4339-48f9-a370-dbbc1ce1da5a_medium.jpg?v=1723900538)
QBM3100U025U | Dry Diferential Pressure Sensor, 0-0.25" WC | Siemens (OBSOLETE)
Brand: Siemens
SKU: QBM3100U025U
View Details
![Siemens QBM81-5 Differential Pressure Switch, 0.2 -2.0-in WC | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/A6V10218394_en_b9187832-88cf-4d29-b88a-ea5543d95f32_medium.jpg?v=1723900532)
QBM81-5 | Differential Pressure Switch, 0.2 -2.0-in WC | Siemens
Brand: Siemens
SKU: QBM81-5
View Details
![Siemens 590-506 Differential Pressure Sensor in Conduit Box, 1% FS, 5" WC, 0 to 10 Vdc | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/590-506_medium.jpg?v=1720022623)
590-506 | Differential Pressure Sensor in Conduit Box, 1% FS, 5" WC, 0 to 10 Vdc | Siemens
Brand: Siemens
SKU: 590-506
View Details
![Siemens 590-503 590 Series Differential Pressure Sensor, 1" Water Column | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/logo_fc341156-0a01-47e4-98be-68c0a90be023_medium.png?v=1720022592)
590-503 | 590 Series Differential Pressure Sensor, 1" Water Column | Siemens
Brand: Siemens
SKU: 590-503
View Details
![Siemens QBM3100U2.5 Dry Differential Pressure Sensor. 0-2.5" WC | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/A6V10387420_en_58e403c0-0a6d-4d54-8532-a1670a16085f_medium.jpg?v=1723900531)
QBM3100U2.5 | Dry Differential Pressure Sensor. 0-2.5" WC | Siemens
Brand: Siemens
SKU: QBM3100U2.5
View Details
![Siemens QBM3100U1 Dry Differential Pressure Sensor 0-1" WC | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/A6V10387420_en_1dcdc703-25d1-4c75-bcec-11986458e966_medium.jpg?v=1723900526)
QBM3100U1 | Dry Differential Pressure Sensor 0-1" WC | Siemens
Brand: Siemens
SKU: QBM3100U1
View Details
![Siemens QBM81-10 Differential Pressure Switch, 0.4-4.0 WC | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/A6V10218394_en_medium.jpg?v=1723900524)
QBM81-10 | Differential Pressure Switch, 0.4-4.0 WC | Siemens
Brand: Siemens
SKU: QBM81-10
View Details
![Siemens 590-782 Differential Pressure Sensor, Transmitter, 0.5", 0.4%, 4-20 mA, Conduit Cover | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/590-782_medium.jpg?v=1720022617)
590-782 | Differential Pressure Sensor, Transmitter, 0.5", 0.4%, 4-20 mA, Conduit Cover | Siemens
Brand: Siemens
SKU: 590-782
Committed to customer satisfaction
as experts in Sensors
Recently Viewed