sensors
![Image for Air Quality Sensors](http://blackhawksupply.com/cdn/shop/files/ultravation-as-ih-1001_5c301da2-e9d5-4215-acb2-1d46af5f12bb_100x.jpg?v=1725573645)
![Image for Humidity Sensors](http://blackhawksupply.com/cdn/shop/files/A6V10320551_en_35a3c4cc-7b48-407d-b3c8-412c2692da2a_100x.jpg?v=1725573630)
![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_d01cb162-99a0-45a6-b56b-a1119cdb904e_100x.jpg?v=1725641739)
![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_001b0808-07fe-48eb-ad03-5adc160e0aae_100x.gif?v=1725573516)
![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_2aff0c92-7890-43f6-9ded-4e8030246f48_100x.jpg?v=1725573629)
![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=1725573619)
![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_561fe822-6e1e-447e-9413-856bce990160_100x.png?v=1724233873)
![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_eb74f9f7-0673-4540-88c8-c3f1ec22f3cc_100x.jpg?v=1725573671)
![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
![Johnson Controls A19AAB-26C REMOTE BULB TEMP CONTROL; 6' CAP; SPST; NEMA 1; 3/8 X 3-1/2" BULB 100/240 F 4 DIFF. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/A19AAB-26C_869379e9-ef51-489b-8257-cfde9ac85f8c_medium.png?v=1724233832)
Temperature Controller, Fixed Differential, Open High, Standard, 6 ft. Capillary, for Temperature Control Applications.
Brand: Johnson Controls
SKU: A19AAB-26C
View Details
![Johnson Controls A19AAE-3C REMOTE BULB TEMP CONTROL; 10' CAP; SPST; NEMA 1; COILED BULB; OPEN HIGH | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/A19AAB-29C_2b21f867-db4f-4be2-b389-2ee6e0a2f10f_medium.png?v=1724233828)
Temperature Control Thermostat, High Temperature Applications, Narrow or Wide Adjustable Differential, for Crop Drying. (OBSOLETE)
Brand: Johnson Controls
SKU: A19AAE-3C
View Details
![Johnson Controls A19EAF-7C DUCT TEMP CONTROL; SPDT; NEMA 1; 1/4HP; MTG BRKT FLANGE | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/A19AAB-29C_c306e47f-7cba-431d-9865-7a96a76ac3a8_medium.png?v=1719992610)
A19EAF-7C | DUCT TEMP CONTROL; SPDT; NEMA 1; 1 / 4HP; MTG BRKT FLANGE | Johnson Controls
Brand: Johnson Controls
SKU: A19EAF-7C
View Details
![Johnson Controls A19AHC-8C REMOTE BULB TEMP CONTROL; -30/180F; DIFF 3-12 ADJ; 8' CAP; SPDT; ENCL-OPEN; SWAGED BULB | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/A19AHC-8C_f57d0315-997d-48c5-b11f-9a44ac4a4926_medium.png?v=1724233833)
Temperature Control Module, Temperature Range -30-180°F, Differential 3-12 Adjustable, for Remote Bulb Applications.
Brand: Johnson Controls
SKU: A19AHC-8C
View Details
![Johnson Controls A19AAB-7C REMOTE BULB TEMP CONTROL; 6' CAP; SPST; NEMA 1; 3/16 X 9-1/2" BULB; OPEN H 100/300 F 1 DIFF. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/A19AAB-7C_bde6557a-4d8e-47ee-b857-e6371933956a_medium.png?v=1724233838)
Remote Bulb Temperature Controller, Fixed Differential, Open High and Standard Differential, 100 to 300 °F.
Brand: Johnson Controls
SKU: A19AAB-7C
View Details
![Johnson Controls A19ABC-40C REMOTE BULB TEMP CONTROL; 30/110F; DIFF 3.5-14 ADJ; 6' CAP; SPDT; NEMA 1; 3/8 X 4" BULB 1; | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/A19ABC-40C_66ced8a6-f924-4a41-9743-1e01d4ec0d5a_medium.png?v=1724233832)
Temperature Control Device, Temperature Range: 30-110°F, Differential Adjustment: 3.5-14°, for Industrial Applications.
Brand: Johnson Controls
SKU: A19ABC-40C
View Details
![Johnson Controls A19AAF-49C REMOTE BULB TEMP CONTROL; 0/100C; DIFF 1.9 FIXED; 3M CAP; SPDT; NEMA 1; 9.7 X 76 MM BULB | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/A19AAB-29C_0bfcfba3-a8b4-4338-8cf1-5a3a518ecaf2_medium.png?v=1719992609)
A19AAF-49C | REMOTE BULB TEMP CONTROL; 0 / 100C; DIFF 1.9 FIXED; 3M CAP; SPDT; NEMA 1; 9.7 X 76 MM BULB | Johnson Controls
Brand: Johnson Controls
SKU: A19AAF-49C
View Details
![Johnson Controls A19ABB-7C REMOTE BULB TEMP CONTROL; 10' CAP; SPST; NEMA 1; 7.4 X 64 MM BULB | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/A19ABB-7C_71cd0a80-5ac8-4ab0-a772-703fdc590b7d_medium.png?v=1724233832)
Temperature Controller, SPST, NEMA 1, Adjustable Differential, for Industrial Temperature Monitoring.
Brand: Johnson Controls
SKU: A19ABB-7C
View Details
![Johnson Controls A19ACA-28C REMOTE BULB TEMP CONTROL; -35/40C; MANUAL RESET; 6' CAP; SPST; NEMA 1; 3/8 X 4" BULB 1 DIFF. NO; | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/A19ACA-28C_23704f14-7090-4db1-b502-2571195657d4_medium.png?v=1724233829)
Temperature Control Module, Temperature Range -35-40 Deg C, Manual Reset, for Industrial Applications.
Brand: Johnson Controls
SKU: A19ACA-28C
View Details
![Johnson Controls A19ABA-51C TEMPERATURE CONTROL; TEMPERATURE CONTROL SPANISH LITERATURE ONLY | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/A19AAB-29C_9c9c7fc9-90a2-4ec1-9135-773cf708c476_medium.png?v=1719992609)
A19ABA-51C | TEMPERATURE CONTROL; TEMPERATURE CONTROL SPANISH LITERATURE ONLY | Johnson Controls
Brand: Johnson Controls
SKU: A19ABA-51C
View Details
![Johnson Controls A19AGF-10C REMOTE BULB TEMP CONTROL; 40/90F; DIFF 1.5 FIXED; 2' CAP; SPDT; ENCL-OPEN; 3/8 X 5" BULB | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/A19AAB-29C_dc5f6ef5-052a-4790-a476-bb593b5fdf9a_medium.png?v=1719992606)
A19AGF-10C | REMOTE BULB TEMP CONTROL; 40 / 90F; DIFF 1.5 FIXED; 2' CAP; SPDT; ENCL-OPEN; 3 / 8 X 5" BULB | Johnson Controls (OBSOLETE)
Brand: Johnson Controls
SKU: A19AGF-10C
View Details
![Johnson Controls A19CAC-2C STRAP ON CHANGEOVR T-STAT; 60/90F; DIFF 10 FIXED; STYLE 20; SPDT; NEMA 1; REMOTE MTG; GRID STRAP ON | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/A19CAC-2C_406d1add-f725-4ec3-a93b-53e9a0fb818c_medium.png?v=1724233829)
Thermostat, Single Stage, SPDT, Range: 60-90°F (16-32°C), Differential: 10°F (5.6°C) fixed, for Industrial Temperature Control Applications.
Brand: Johnson Controls
SKU: A19CAC-2C
View Details
![Johnson Controls A19AAA-18C REMOTE BULB TEMP CONTROL; 6' CAP; SPST; NEMA 1; .093 X 12' BULB; 30/110 F 9 DIFF. 3.5+/-2F FIXED; | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/A19AAB-29C_e5c47a70-6abf-4442-a776-6ef254ae790f_medium.png?v=1719992610)
A19AAA-18C | REMOTE BULB TEMP CONTROL; 6' CAP; SPST; NEMA 1; .093 X 12' BULB; 30 / 110 F 9 DIFF. 3.5+ / -2F FIXED; | Johnson Controls
Brand: Johnson Controls
SKU: A19AAA-18C
View Details
![Johnson Controls A19EBC-1C DUCT TEMP CONTROL; 100/350F;DIFF 9 - 36 ADJ; SPDT; NEMA 1; 1HP; MTG BRKT FLANGE | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/A19EBC-1C_c6c9bb0c-2895-4c7f-964b-f9188f57a2c4_medium.png?v=1724233828)
Duct Temperature Controller, Single Stage, SPDT, Adjustable Differential 9-36°F / 5-20°C, for HVAC Applications.
Brand: Johnson Controls
SKU: A19EBC-1C
View Details
![Johnson Controls A19BAA-16C TEMPERATURE CONTROL; STYLE 3 STAINLESS STEEL; RANGE 30/100 DEG F | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/A19AAB-29C_1f412e75-74e0-480c-af39-ecf04fd0cceb_medium.png?v=1719992605)
A19BAA-16C | TEMPERATURE CONTROL; STYLE 3 STAINLESS STEEL; RANGE 30 / 100 DEG F | Johnson Controls (OBSOLETE)
Brand: Johnson Controls
SKU: A19BAA-16C
View Details
![Johnson Controls A19ABA-40CQ TEMPERATURE CONTROL; DIFF 3-12 ADJ; 6' CAP; SPST; NEMA 1; 3/8 X 4" BULB; OPEN LOW | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/A19AAB-29C_0e8107e8-f22f-4b47-9595-569d1d280724_medium.png?v=1719992605)
A19ABA-40CQ | TEMPERATURE CONTROL; DIFF 3-12 ADJ; 6' CAP; SPST; NEMA 1; 3 / 8 X 4" BULB; OPEN LOW | Johnson Controls
Brand: Johnson Controls
SKU: A19ABA-40CQ
View Details
![Johnson Controls A19AGD-18C REMOTE BULB TEMP CONTROL; 20/90F; 6' CAP; SPST; ENCL-OPEN; 3/8 X 5" SWAGED BULB 1 | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/A19AGD-18C_150e28ca-53fe-4d98-ac1d-df059be0f97f_medium.png?v=1724233829)
Temperature Control System, Temperature Range: 20-90°F, Open Enclosure, SPST, 0.375 x 5 inch Swaged Bulb
Brand: Johnson Controls
SKU: A19AGD-18C
View Details
![Johnson Controls A19AAC-4C REMOTE BULB TEMP CONTROL; 6' CAP; SPDT; NEMA 1; 3/8 X 4" BULB | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/A19AAC-4C_medium.png?v=1723867915)
A19AAC-4C | REMOTE BULB TEMP CONTROL; 6' CAP; SPDT; NEMA 1; 3 / 8 X 4" BULB | Johnson Controls
Brand: Johnson Controls
SKU: A19AAC-4C
View Details
![Johnson Controls A19AAF-20C REMOTE BULB TEMP CONTROL; 6' CAP; SPDT; NEMA 1; 3/8 X 4" BULB -30/100 F 1 DIFF. 2.5+/-1.5F FIXED; | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/logo_jci1_942f5670-351c-464f-a2d1-a83ac7f67c26_medium.jpg?v=1724233828)
Temperature Controller, Fixed Differential, -30 to 100°F, SPDT, for Temperature Control Applications.
Brand: Johnson Controls
SKU: A19AAF-20C
View Details
![Johnson Controls A19BAA-5C COILED BULB TEMP CONTROL; 30/110F; SPST; NEMA 1; 1HP; KNOB VISIBLE | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/A19BAA-5C_medium.png?v=1723867914)
A19BAA-5C | COILED BULB TEMP CONTROL; 30 / 110F; SPST; NEMA 1; 1HP; KNOB VISIBLE | Johnson Controls
Brand: Johnson Controls
SKU: A19BAA-5C
View Details
![Johnson Controls A28AA-60C TWO STAGE TEMP CONTROL; 40/120C; DIFF 5 FIXED; 6M CAP; 2-SPDT; NEMA 1; 9.5 MM X 89 MM BULB; 1HP | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/A28AA-60C_62224b48-2302-43dd-b2e1-080648371878_medium.png?v=1719992602)
A28AA-60C | TWO STAGE TEMP CONTROL; 40 / 120C; DIFF 5 FIXED; 6M CAP; 2-SPDT; NEMA 1; 9.5 MM X 89 MM BULB; 1HP | Johnson Controls
Brand: Johnson Controls
SKU: A28AA-60C
Committed to customer satisfaction
as experts in Sensors
Recently Viewed
Popular Products
View all →![KMC BAC-5051E Router: BACnet, IP/Enet/Single MSTP | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/BAC-5051E-medium_large.jpg?v=1720012548)
BAC-5051E | Router: BACnet, IP/Enet/Single MSTP | KMC (OBSOLETE)
Brand: KMC
SKU: BAC-5051E