sensors
![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/QFM81.2_79d4079b-70ec-46dd-ad55-c21dcc811194_100x.jpg?v=1720023785)
![Image for Air Velocity Sensors](http://blackhawksupply.com/cdn/shop/files/QVM62.1_100x.jpg?v=1720023759)
![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_100x.jpg?v=1722436514)
![Image for Room Humidity Sensors](http://blackhawksupply.com/cdn/shop/files/VT8650U5000B_f493c69b-7e48-4d7a-a12f-bf6df0936a5e_100x.jpg?v=1721752016)
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![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/QPM2162_0092b664-4303-4de9-a39a-9b2aad45f32b_100x.jpg?v=1720023774)
![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/QAA2280.FWSC_100x.jpg?v=1720023764)
![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/AQF3100_100x.jpg?v=1720022886)
![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_74879663-4e72-4953-b2f4-cee9bd8c338b_100x.jpg?v=1719983615)
![Image for Liquid Level Sensors](http://blackhawksupply.com/cdn/shop/files/F59H-1C_46b2f514-8aa8-4745-9db6-557f94695344_100x.png?v=1719992959)
![Image for Water Detection](http://blackhawksupply.com/cdn/shop/files/Senva_Family_WD_909753fc-5e01-4976-b21f-1a46ea055ef3_100x.jpg?v=1720021280)
![Image for Wireless Sensors](http://blackhawksupply.com/cdn/shop/files/PIC_AM_22UTH-550X...560X_01_4C-product_retina_edb15bca-1963-4af5-bf42-4ec7bed341d8_100x.jpg?v=1719983659)
![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_53879c00-21b3-4265-9167-df33e85948ae_100x.png?v=1720019013)
![Image for Gas Detection](http://blackhawksupply.com/cdn/shop/files/aci-q6-co-h2-100l_905be93c-e90a-4247-9774-e5e64c2a4389_100x.jpg?v=1719983058)
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![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)
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![Image for Relays](http://blackhawksupply.com/cdn/shop/files/VC3XXX_850b8410-35d1-45d7-816b-d4e3dd1ac696_100x.png?v=1721752016)
![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_3488ebf9-03be-4992-b910-573e0b4db050_100x.png?v=1720018999)
![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)
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![Dwyer A3000-00 Pressure switch/gage | range 0-.25" w.c. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/a3000_2868cea9-8cc0-4fd2-9795-bff813d9feb6_medium.jpg?v=1719998220)
A3000-00 | Pressure switch / gage | range 0-.25" w.c. | Dwyer
Brand: Dwyer
SKU: A3000-00
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![Dwyer A-258 Pressure snubber | 316 SS | 3/8" male/female BSPP. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/a-251_a-257_pic_40e0cb8a-538f-48ce-bf41-42e94af31b53_medium.jpg?v=1719998220)
A-258 | Pressure snubber | 316 SS | 3 / 8" male / female BSPP. | Dwyer
Brand: Dwyer
SKU: A-258
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![Dwyer A-288 “L° type metal mounting bracket with screws. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/mountingoptions_family_1000x1000_476ed491-d61f-4d8d-85e4-fbbf338d15c9_medium.jpg?v=1719998216)
A-288 | “L° type metal mounting bracket with screws. | Dwyer
Brand: Dwyer
SKU: A-288
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![Dwyer A3000-500PA Pressure switch/gage | range 0-500 Pa. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/a3000_03aca68c-a7dc-4901-b23f-1a75dca6edaa_medium.jpg?v=1719998215)
A3000-500PA | Pressure switch / gage | range 0-500 Pa. | Dwyer
Brand: Dwyer
SKU: A3000-500PA
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![Dwyer A3000-100CM Pressure switch/gage | range 0-100 cm w.c. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/a3000_85b30c4c-e79c-44e0-bf93-ac33ca0ffa1a_medium.jpg?v=1719998216)
A3000-100CM | Pressure switch / gage | range 0-100 cm w.c. | Dwyer
Brand: Dwyer
SKU: A3000-100CM
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![Dwyer A3000-2CM Pressure switch/gage | range 0-2 cm w.c. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/a3000_9b3a5032-7cef-42da-9370-6dbe93ca8682_medium.jpg?v=1719998211)
A3000-2CM | Pressure switch / gage | range 0-2 cm w.c. | Dwyer
Brand: Dwyer
SKU: A3000-2CM
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![Dwyer A3000-20KPA Pressure switch/gage | range 0-20 kPa. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/a3000_da2089ba-5d66-4346-aa38-4a99c38fdab3_medium.jpg?v=1719998211)
A3000-20KPA | Pressure switch / gage | range 0-20 kPa. | Dwyer
Brand: Dwyer
SKU: A3000-20KPA
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![Dwyer A3000-100MM Pressure switch/gage | range 0-100 mm w.c. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/a3000_122f8826-8e1e-458a-b9b9-56528a48304e_medium.jpg?v=1719998211)
A3000-100MM | Pressure switch / gage | range 0-100 mm w.c. | Dwyer
Brand: Dwyer
SKU: A3000-100MM
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![Dwyer A-2026-8 Stainless steel tee | 1-1/2" FNPT. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/a-2000group_pic_22b34d19-ac8e-41b7-b6b5-67270007f0dd_medium.jpg?v=1719998210)
A-2026-8 | Stainless steel tee | 1-1 / 2" FNPT. | Dwyer
Brand: Dwyer
SKU: A-2026-8
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![Dwyer A3000-00N Pressure switch/gage | range .05 to .20" w.c. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/a3000_0e82206d-cf61-473e-bca2-8699ff7fdd85_medium.jpg?v=1719998210)
A3000-00N | Pressure switch / gage | range .05 to .20" w.c. | Dwyer
Brand: Dwyer
SKU: A3000-00N
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![Dwyer A-126 1 oz dispenser bottle fluorescein green color concentrate. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/gagefluid-family_large_e3183495-5ace-458c-ab1d-3fe1b497b79d_medium.jpg?v=1719998206)
A-126 | 1 oz dispenser bottle fluorescein green color concentrate. | Dwyer
Brand: Dwyer
SKU: A-126
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![Johnson Controls HT-69020NP-0 DUCT TRNS 2%RH; DUCT TRANSMITTER 2%RH | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/ht69020_c0c77af2-ba37-4688-9152-1380836e638a_medium.png?v=1719993066)
HT-69020NP-0 | DUCT TRNS 2%RH; DUCT TRANSMITTER 2%RH | Johnson Controls
Brand: Johnson Controls
SKU: HT-69020NP-0
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![Johnson Controls HE-68P2-0N00WS 2% RH PT TEMP WALL MOUNT; WALL MOUNT 2% RH PLATINUM TEMP NO ADJUST | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/1345755968951_cdd94dc0-1084-422b-a4ed-cc625754631d_medium.jpg?v=1719993014)
HE-68P2-0N00WS | 2% RH PT TEMP WALL MOUNT; WALL MOUNT 2% RH PLATINUM TEMP NO ADJUST | Johnson Controls
Brand: Johnson Controls
SKU: HE-68P2-0N00WS
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![Johnson Controls HE-68N3-0N00WS 3% RH NI TEMP WALL MOUNT; WALL MOUNT 3% RH NICKEL TEMP NO ADJUST | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/1345755968951_3ed49e09-d76c-4f13-aac5-bde0fe943d87_medium.jpg?v=1719993014)
HE-68N3-0N00WS | 3% RH NI TEMP WALL MOUNT; WALL MOUNT 3% RH NICKEL TEMP NO ADJUST | Johnson Controls
Brand: Johnson Controls
SKU: HE-68N3-0N00WS
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![Johnson Controls HE-68P3-0N00WS 3% RH PT TEMP WALL MOUNT; WALL MOUNT 3% RH PLATINUM TEMP NO ADJUST | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/1345755968951_37db1e65-9ac8-44d7-901e-717bd82b3114_medium.jpg?v=1719993013)
HE-68P3-0N00WS | 3% RH PT TEMP WALL MOUNT; WALL MOUNT 3% RH PLATINUM TEMP NO ADJUST | Johnson Controls
Brand: Johnson Controls
SKU: HE-68P3-0N00WS
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![Johnson Controls GS302WMXVR2A Gas Sensor, combined CO/NO2, 0 VDC to 5 VDC or 0 VDC to 10 VDC, and temperature | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/GS3000_20Gas_20Detector_20Sensor_e5527079-dfa7-4e3c-96d9-4a3ca482c34a_medium.jpg?v=1719993013)
GS302WMXVR2A | Gas Sensor, combined CO / NO2, 0 VDC to 5 VDC or 0 VDC to 10 VDC, and temperature | Johnson Controls
Brand: Johnson Controls
SKU: GS302WMXVR2A
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![Johnson Controls GS300WMXVR2P GAS SENSOR; CO; GAS SENSOR; CO; 0-5/0-10VDC;1000 ? PLAT.TEMP | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/GS3000_20Gas_20Detector_20Sensor_f365ca0a-6809-4c09-9728-4e01ec09d5b8_medium.jpg?v=1719993009)
GS300WMXVR2P | GAS SENSOR; CO; GAS SENSOR; CO; 0-5 / 0-10VDC;1000 ? PLAT.TEMP | Johnson Controls
Brand: Johnson Controls
SKU: GS300WMXVR2P
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![Johnson Controls HE-69435NS-0 SURFACEMNTDUCT;0-5V;3%RH; SURFACE MNT DUCT SENSOR;0-5V RH OUTPUT; +/-3%RH; 2.2KOHM NTC THERMISTOR | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/logo_jci1_ab7e735e-0858-4ab8-a7b8-2fef5314c486_medium.jpg?v=1719993008)
HE-69435NS-0 | SURFACEMNTDUCT;0-5V;3%RH; SURFACE MNT DUCT SENSOR;0-5V RH OUTPUT; + / -3%RH; 2.2KOHM NTC THERMISTOR | Johnson Controls
Brand: Johnson Controls
SKU: HE-69435NS-0
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![Johnson Controls GS302WMRVR2A Gas Sensor, CO/NO2, remote NO2, 0 VDC to 5 VDC or 0 VDC to 10 VDC, and temperature | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/GS3000_20Gas_20Detector_20Sensor_c36622ec-4218-46e0-ab05-9c3b18a8cb71_medium.jpg?v=1719993008)
GS302WMRVR2A | Gas Sensor, CO / NO2, remote NO2, 0 VDC to 5 VDC or 0 VDC to 10 VDC, and temperature | Johnson Controls
Brand: Johnson Controls
SKU: GS302WMRVR2A
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![Johnson Controls H-5502-1003 INDICATOR 2-1/2" 30-80RH | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/H-5502-1003_f43bef32-b18f-44ab-8107-80acdcf3e716_medium.png?v=1719993009)
H-5502-1003 | INDICATOR 2-1 / 2" 30-80RH | Johnson Controls
Brand: Johnson Controls
SKU: H-5502-1003
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![Johnson Controls HE-68N3-1N00WS 3% RH NI W/C WALL MOUNT; WALL MOUNT 3% RH NICKEL TEMP WARMER/OOLER ADJUST | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/1345755968951_d9b8ab67-b2f7-4d43-a821-83f60a9a8f55_medium.jpg?v=1719993008)
HE-68N3-1N00WS | 3% RH NI W / C WALL MOUNT; WALL MOUNT 3% RH NICKEL TEMP WARMER / OOLER ADJUST | Johnson Controls
Brand: Johnson Controls
SKU: HE-68N3-1N00WS
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![Johnson Controls GS3RWMX01N GAS SENSOR REPLACEMENT POD; NO2 AND 1000 ? NICKEL TEMP | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/logo_jci1_178ab073-5b42-4eaa-b213-c63d484e2a8a_medium.jpg?v=1719993008)
GS3RWMX01N | GAS SENSOR REPLACEMENT POD; NO2 AND 1000 ? NICKEL TEMP | Johnson Controls
Brand: Johnson Controls
SKU: GS3RWMX01N
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![Johnson Controls GS301WMXVR2P GAS SENSOR; NO2; GAS SENSOR; NO2; 0-5/0-10VDC;1000 ? PLAT.TEMP | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/GS3000_20Gas_20Detector_20Sensor_ae590ab0-5a48-44e7-979e-52d45b5d3b6d_medium.jpg?v=1719993003)
GS301WMXVR2P | GAS SENSOR; NO2; GAS SENSOR; NO2; 0-5 / 0-10VDC;1000 ? PLAT.TEMP | Johnson Controls
Brand: Johnson Controls
SKU: GS301WMXVR2P
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