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)
![Image for Flow Sensors](http://blackhawksupply.com/cdn/shop/files/fs2_600x600_741c4899-db29-404d-a494-2301b132231a_100x.gif?v=1719999007)
![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)
![Image for Enclosures](http://blackhawksupply.com/cdn/shop/files/PXA-ENC_3b3830d8-a75b-4743-ac6d-47dca67d1da8_100x.png?v=1720023762)
![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/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 HS-311 Humidity switch | 0-3 V input sensor | 110 VAC supply voltage. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/hs_600x600_6f2c3f7c-7ef5-4896-8369-6d7540b21110_medium.gif?v=1719999118)
HS-311 | Humidity switch | 0-3 V input sensor | 110 VAC supply voltage. | Dwyer
Brand: Dwyer
SKU: HS-311
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![Dwyer HM3531DLC100 Differential pressure manometer | range 0-28" w.c. | 0.05% accuracy. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/hm35_front_1000x1000_189bb0b5-1d1c-4ee0-bc53-38c1e20754d7_medium.gif?v=1719999119)
HM3531DLC100 | Differential pressure manometer | range 0-28" w.c. | 0.05% accuracy. | Dwyer
Brand: Dwyer
SKU: HM3531DLC100
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![Dwyer HM3531DLH100 Differential pressure manometer | range 0-14.5 psi | 0.05% accuracy. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/hm35_front_1000x1000_b2589d9d-4e94-4116-b1d1-57728ffcf42d_medium.gif?v=1719999118)
HM3531DLH100 | Differential pressure manometer | range 0-14.5 psi | 0.05% accuracy. | Dwyer
Brand: Dwyer
SKU: HM3531DLH100
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![Dwyer HM3531DLK600 Differential pressure manometer | range 0-108 psi | 0.1% of reading accuracy. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/hm35_front_1000x1000_dda70b80-1f9e-4e96-b9d9-2c3915dbf896_medium.gif?v=1719999114)
HM3531DLK600 | Differential pressure manometer | range 0-108 psi | 0.1% of reading accuracy. | Dwyer
Brand: Dwyer
SKU: HM3531DLK600
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![Dwyer HS-312 Humidity switch | 0-3 V input sensor | 230 VAC supply voltage. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/hs_600x600_f3a1ab43-338c-4d7a-86c0-504593d88f49_medium.gif?v=1719999114)
HS-312 | Humidity switch | 0-3 V input sensor | 230 VAC supply voltage. | Dwyer
Brand: Dwyer
SKU: HS-312
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![Dwyer I2-11042 Immersion temperature sensor | 4" insertion length | Pt 100 Ω sensor. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/i2-1_1000x1000_b9e6e3ac-d28f-45d1-af86-e724439bef40_medium.jpg?v=1719999109)
I2-11042 | Immersion temperature sensor | 4" insertion length | Pt 100 Ω sensor. | Dwyer
Brand: Dwyer
SKU: I2-11042
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![Dwyer HFO-22205 In-line flow alarm | range 0.5-5.0 GPM (1-19 LPM) water | 1/2" female NPT. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/hfo_front_1000x1000_e11463f6-8da7-45cf-af92-215695e6d51e_medium.gif?v=1719999108)
HFO-22205 | In-line flow alarm | range 0.5-5.0 GPM (1-19 LPM) water | 1 / 2" female NPT. | Dwyer
Brand: Dwyer
SKU: HFO-22205
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![Dwyer HM3531DLH600 Differential pressure manometer | range 0-14.5 psi | 0.1% of reading accuracy. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/hm35_front_1000x1000_df56f95c-d811-4e9d-991d-fb212c51fce2_medium.gif?v=1719999108)
HM3531DLH600 | Differential pressure manometer | range 0-14.5 psi | 0.1% of reading accuracy. | Dwyer
Brand: Dwyer
SKU: HM3531DLH600
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![Dwyer HS-411 Humidity switch | 4-20 mA input sensor | 110 VAC supply voltage. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/hs_600x600_17ba77c1-4bba-4faf-8c22-4cc302ac0d57_medium.gif?v=1719999108)
HS-411 | Humidity switch | 4-20 mA input sensor | 110 VAC supply voltage. | Dwyer
Brand: Dwyer
SKU: HS-411
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![Dwyer HM3531GMN310 Gage pressure manometer | range 0-507 psi | 0.2% accuracy. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/hm35_front_1000x1000_836310b9-37ed-4a36-a9af-e61a086fe618_medium.gif?v=1719999103)
HM3531GMN310 | Gage pressure manometer | range 0-507 psi | 0.2% accuracy. | Dwyer
Brand: Dwyer
SKU: HM3531GMN310
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![Dwyer HM3531ALJ300 Absolute pressure manometer | range 0-29 psia | 0.2% accuracy. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/hm35_front_1000x1000_0896467b-e662-4523-aee9-b98d72f11956_medium.gif?v=1719999103)
HM3531ALJ300 | Absolute pressure manometer | range 0-29 psia | 0.2% accuracy. | Dwyer
Brand: Dwyer
SKU: HM3531ALJ300
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![Dwyer GFT2-10-RS232 Flow totalizer | 0-10 VDC input | RS-232 serial communication. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/gft2_600x600_76412d3d-656a-46c0-bc00-5335108b16e3_medium.gif?v=1719999104)
GFT2-10-RS232 | Flow totalizer | 0-10 VDC input | RS-232 serial communication. | Dwyer
Brand: Dwyer
SKU: GFT2-10-RS232
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![Dwyer GBTB560121 Glow-in-the-dark bimetal thermometer | range 50 to 400°F | 6" stem. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/1_cd8ee357-46c5-4d99-abcc-b199a5e07c1e_medium.jpg?v=1719999103)
GBTB560121 | Glow-in-the-dark bimetal thermometer | range 50 to 400°F | 6" stem. | Dwyer
Brand: Dwyer
SKU: GBTB560121
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![Dwyer HFO-22440 In-line flow alarm | range 4-40 GPM (15-151 LPM) water | 1" female NPT. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/hfo_front_1000x1000_3c7b7d0e-e361-46aa-a345-62328cc1747e_medium.gif?v=1719999104)
HFO-22440 | In-line flow alarm | range 4-40 GPM (15-151 LPM) water | 1" female NPT. | Dwyer
Brand: Dwyer
SKU: HFO-22440
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