Sensors 4 inch Sensor length
We have 9,000+ sensor models in our stock for your next building automation project. Duct, pipe, indoor and outdoor sensors: Blackhawk Supply has it all! Shop today!
![Image for Pressure Sensors](http://blackhawksupply.com/cdn/shop/collections/DLP_1_100x.png?v=1525965948)
![Image for Duct Temperature Sensors](http://blackhawksupply.com/cdn/shop/collections/GD-Duct_0_32724b59-446e-4602-9845-900ce84cfe70_600x600_1_100x.png?v=1525902491)
![Image for Current Sensors](http://blackhawksupply.com/cdn/shop/collections/CT-300_med_600x600_1_100x.png?v=1525965815)
![Image for Gas Sensors](http://blackhawksupply.com/cdn/shop/collections/Q5_9fe508f4-06ee-4376-a0d8-01f3ceed962f_600x600_1_100x.png?v=1656495283)
![Image for Outside Temperature Sensors](http://blackhawksupply.com/cdn/shop/collections/Outdoor-Air_4_6698b7d4-c74d-4d79-afe1-f2a778fd88f7_600x600_1_100x.png?v=1525902585)
![Image for Outside Humidity Sensors](http://blackhawksupply.com/cdn/shop/collections/Outdoor-AIr_14_73e889d9-72c0-49a8-b7aa-3244a6177a9a_600x600_1_100x.png?v=1525965672)
![Image for Duct Humidity Sensors](http://blackhawksupply.com/cdn/shop/collections/RH_20TT_20Duct_NEMA_204X_0_5bf3c77c-eba9-4c1b-9243-8a07e6d427b1_600x600_1_100x.png?v=1525965556)
![Image for Room Humidity Sensors](http://blackhawksupply.com/cdn/shop/collections/RH_20Resistive_20Room2_20Setpoint_20Override_1_8d939914-25aa-40e1-ae24-7d3557ddb1ff_600x600_1_100x.png?v=1525965135)
![Image for Room Temperature Sensors](http://blackhawksupply.com/cdn/shop/collections/Infinity_20Override_0_ef3262ed-6393-48a3-bd91-8aa200bed9fc_600x600_1_100x.png?v=1655986720)
![Image for Freezer Sensors](http://blackhawksupply.com/cdn/shop/collections/Freezer_6_1200x1200_2b2bcc68-4da6-4bdd-a0ec-3bcc379060c1_100x.png?v=1612451690)
![Image for Strap Sensors](http://blackhawksupply.com/cdn/shop/collections/GD-Strap_9_400x400_57c7c3ea-2a95-4273-b5f6-e4645a3b86e7_100x.png?v=1612451756)
![Image for Light/LUX Sensors](http://blackhawksupply.com/cdn/shop/collections/Light_20Level_0_1af9652e-abdf-4a24-b6e3-4f3023e7e2bf_600x600_1_100x.png?v=1525966099)
![Image for Bullet Sensors](http://blackhawksupply.com/cdn/shop/collections/Bullet-Probe_30_1200x1200_86df93e4-8206-4132-8f13-7c6b3a84d750_100x.png?v=1612451633)
![Image for Level Transmitters for Sale](http://blackhawksupply.com/cdn/shop/collections/SBLT2_1000x1000_400x400_a5387011-1079-43bf-b2f3-3a5019293bf3_100x.gif?v=1633682812)
![Image for Heating Sensors](http://blackhawksupply.com/cdn/shop/files/584547_c3a0c04d-c8d7-4f89-8aee-6a4a15facc9c_100x.jpg?v=1717076667)
![Image for Air Quality](http://blackhawksupply.com/cdn/shop/products/AQ2D_41c1db17-cc87-40e5-b1e1-debc524a3590_100x.png?v=1708973964)
![Image for Facility Monitoring](http://blackhawksupply.com/cdn/shop/products/wingrxtbanner_100x.jpg?v=1710256868)
![Image for Plumbing Sensors](http://blackhawksupply.com/cdn/shop/files/974891_9cf81fe0-49ad-44b1-bf09-c68f8ad31017_100x.jpg?v=1717079750)
![Image for Water Leak Detection](http://blackhawksupply.com/cdn/shop/collections/WD_PIC_1200x1200_ff2b53d6-6d0b-4a7c-9a53-05c5ea36409c_100x.jpg?v=1633683366)
![Image for Accessories](http://blackhawksupply.com/cdn/shop/collections/PIC_GL_A-22AP-A01...04_4C-product_retina_400x400_14114f37-ee0a-436c-99cd-84781d10eec7_100x.jpg?v=1611673512)
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![Veris TGBBR00 Temp | Duct w/Ext Bx | 4 in | 100R RTD | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/TGBBR00_5e71925f-c050-483d-a640-16c2598bff8c_medium.jpg?v=1689084364)
TGBBR00 | Temp | Duct w / Ext Bx | 4 in | 100R RTD | Veris
Brand: Veris
SKU: TGBBR00
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![Veris TFBPS00 Temp | Duct w/Mtg Box | 4" | Linitemp | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/TFBPS00_medium.jpg?v=1708999740)
TFBPS00 | Temp | Duct w / Mtg Box | 4" | Linitemp | Veris (OBSOLETE)
Brand: Veris
SKU: TFBPS00
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![Veris TFBNR00 Temp | Duct w/Mtg Box | 4in. | 1k8 Thrmistr | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/TFBBR00_5c01e32c-fb48-4dc1-9a46-322e26a22ea6_medium.jpg?v=1689084354)
TFBNR00 | Temp | Duct w / Mtg Box | 4in. | 1k8 Thrmistr | Veris
Brand: Veris
SKU: TFBNR00
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![Veris TFBMR00 Temp | Duct w/Mtg Box | 4" | 20k NTC | RTD | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/TFBBR00_e2611d94-d332-4ce7-b0f1-3b913aaaafb4_medium.jpg?v=1689084320)
TFBMR00 | Temp | Duct w / Mtg Box | 4" | 20k NTC | RTD | Veris
Brand: Veris
SKU: TFBMR00
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![Veris TFBJR00 Temp | Duct w/Mtg Box | 4" | 10k DALE | RTD | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/TFBBR00_25b84955-2da6-465c-b0d6-c9351710641e_medium.jpg?v=1689084309)
TFBJR00 | Temp | Duct w / Mtg Box | 4" | 10k DALE | RTD | Veris
Brand: Veris
SKU: TFBJR00
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![Veris TFBHR02 Temp | Duct w/Mtg Box | 4 in | 10k T3 | 2 Cal | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/TFBBR00_425c3b45-09ac-4e45-b17b-74fe8634f02e_medium.jpg?v=1689084321)
TFBHR02 | Temp | Duct w / Mtg Box | 4 in | 10k T3 | 2 Cal | Veris
Brand: Veris
SKU: TFBHR02
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![Veris TFBHR01 Temp | Duct w/Mtg Box | 4 in | 10k T3 | 1 Pt Cal Cert | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/TFBHR01_medium.jpg?v=1708999685)
TFBHR01 | Temp | Duct w / Mtg Box | 4 in | 10k T3 | 1 Pt Cal Cert | Veris (OBSOLETE)
Brand: Veris
SKU: TFBHR01
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![Veris TFBHR00 Temp | Duct w/Mtg Box | 4" | 10k T3 | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/TFBBR00_5c9c311f-0bda-4661-b751-5151fc9ebf1b_medium.jpg?v=1689084305)
TFBHR00 | Temp | Duct w / Mtg Box | 4" | 10k T3 | Veris
Brand: Veris
SKU: TFBHR00
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![Veris TFBFR00 Temp | Duct w/Mtg Box | 4" | 3k | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/TFBBR00_6fb0da56-121a-434e-a25b-b0e2b581b1c7_medium.jpg?v=1689084367)
TFBFR00 | Temp | Duct w / Mtg Box | 4" | 3k | Veris
Brand: Veris
SKU: TFBFR00
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![Veris TFBDR02 Temp | Duct w/Mtg Box | 4 in | 10k T2 | 2 Pt Cal Cert | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/TFBBR00_b80781f2-4974-4af6-8d30-5c53e4c3238f_medium.jpg?v=1689084354)
TFBDR02 | Temp | Duct w / Mtg Box | 4 in | 10k T2 | 2 Pt Cal Cert | Veris
Brand: Veris
SKU: TFBDR02
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![Veris TFBDR00 Temp | Duct w/Mtg Box | 4" | 10k T2 | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/TFBBR00_a0810d46-f120-4873-999e-70ed1bfee4d1_medium.jpg?v=1689084334)
TFBDR00 | Temp | Duct w / Mtg Box | 4" | 10k T2 | Veris
Brand: Veris
SKU: TFBDR00
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![Veris TFBCR03 Temp | Duct w/Mtg Box | 4 in | 1k RTD | 3 Pt Cal Cert | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/TFBCR03_medium.jpg?v=1708999685)
TFBCR03 | Temp | Duct w / Mtg Box | 4 in | 1k RTD | 3 Pt Cal Cert | Veris (OBSOLETE)
Brand: Veris
SKU: TFBCR03
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![Veris TFBCR02 Temp | Duct w/Mtg Box | 4 in | 1k RTD | 2 Cal | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/TFBBR00_8e941c6d-955a-40e6-8b3c-9e42ac23d5e6_medium.jpg?v=1689084340)
TFBCR02 | Temp | Duct w / Mtg Box | 4 in | 1k RTD | 2 Cal | Veris
Brand: Veris
SKU: TFBCR02
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![Veris TFBCR00 Temp | Duct w/Mtg Box | 4" | 1k Pt | RTD | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/TFBBR00_8b80fc63-aa24-48a8-aa5d-aba596f28dd5_medium.jpg?v=1689084319)
TFBCR00 | Temp | Duct w / Mtg Box | 4" | 1k Pt | RTD | Veris
Brand: Veris
SKU: TFBCR00
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![Veris TFBBR02 Temp | Duct w/Mtg Box | 4 in | 100R RTD | 2 Pt Cal Cert | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/TFBBR00_20e8bca0-7ff9-4bb5-82d3-265b0071efcf_medium.jpg?v=1689084305)
TFBBR02 | Temp | Duct w / Mtg Box | 4 in | 100R RTD | 2 Pt Cal Cert | Veris
Brand: Veris
SKU: TFBBR02
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![Veris TFBBR01 Temp | Duct w/Mtg Box | 4 in | 100R RTD | 1Pt Cal Cert | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/TFBBR01_medium.jpg?v=1708999726)
TFBBR01 | Temp | Duct w / Mtg Box | 4 in | 100R RTD | 1Pt Cal Cert | Veris (OBSOLETE)
Brand: Veris
SKU: TFBBR01
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![Veris TFBBR00 Temp | Duct w/Mtg Box | 4" | 100R Pt | RTD | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/TFBBR00_4c81641f-4165-4f2c-a038-f6f9e0608088_medium.jpg?v=1689084287)
TFBBR00 | Temp | Duct w / Mtg Box | 4" | 100R Pt | RTD | Veris
Brand: Veris
SKU: TFBBR00
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