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Welcome to ACI Products! We offer over 6000 products, such as CO and NO2 sensors, current switches, temperature and humidity monitors, and more.
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![ACI A/20K-INW-6"-BB IMMER 6", NO WELL, BB | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-a-balco-inw-2-5-bb_bc108331-b39e-40dc-bec9-9167d17cd22e_medium.png?v=1719981697)
A / 20K-INW-6"-BB | IMMER 6", NO WELL, BB | ACI
Brand: ACI
SKU: A/20K-INW-6"-BB
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![ACI A/20K-IM-4"-GD IMMER 4", GD, MACH WELL | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-a-cp-im-4-gd_7d2d5615-5321-4784-a085-6665f039a297_medium.jpg?v=1719981707)
A / 20K-IM-4"-GD | IMMER 4", GD, MACH WELL | ACI
Brand: ACI
SKU: A/20K-IM-4"-GD
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![ACI A/20K-INW-6"-4X IMMER 6", NO WELL, 4X | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-a-tt1k-inw-6-4-4x-potted_d178dc0a-3714-486b-b6b2-f5daddb557c6_medium.jpg?v=1719981707)
A / 20K-INW-6"-4X | IMMER 6", NO WELL, 4X | ACI
Brand: ACI
SKU: A/20K-INW-6"-4X
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![ACI A/20K-INW-2.5"-PB IMMER 2.5", NO WELL, PB | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-a-tt100-inw-2-5-4-pb_e8c1bdd2-928a-44e1-baac-184277c964ef_medium.png?v=1719981751)
A / 20K-INW-2.5"-PB | IMMER 2.5", NO WELL, PB | ACI
Brand: ACI
SKU: A/20K-INW-2.5"-PB
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![ACI A/20K-I-4"-EXPL IMMER 4", EXPL ENC | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-a-100-2w-i-2-5-expl_9ef75471-e4e3-4b22-8d68-6582f1d03252_medium.png?v=1719981678)
A / 20K-I-4"-EXPL | IMMER 4", EXPL ENC | ACI
Brand: ACI
SKU: A/20K-I-4"-EXPL
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![ACI A/20K-FA-24'-PB FLEXIBLE AVERAGING 24', PB | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-a-1-8k-fa-24-pb_0ab87d4e-0954-4d48-aa7a-edbcc21715e0_medium.png?v=1719981682)
A / 20K-FA-24'-PB | FLEXIBLE AVERAGING 24', PB | ACI
Brand: ACI
SKU: A/20K-FA-24'-PB
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View all →![Veris MX1B Moisture | Battery | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/MX1B_large.jpg?v=1720029907)
MX1B | Moisture | Battery | Veris
Brand: Veris
SKU: MX1B![Veris PX3DLX02 Pressure | Dry | Duct | LCD | 0-10 In WC | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/PX3DLX02_4069df82-0643-48ae-8cf1-82ce32c73ead_large.jpg?v=1721247857)
PX3DLX02 | Pressure | Dry | Duct | LCD | 0-10 In WC | Veris
Brand: Veris
SKU: PX3DLX02![Veris H971 Current Sensor | DC | Split | 0-200A | Pulse Reset | Bi-Directional | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/H971_large.jpg?v=1720029813)
H971 | Current Sensor | DC | Split | 0-200A | Pulse Reset | Bi-Directional | Veris
Brand: Veris
SKU: H971![Siemens SAS61.33U MT Series SAS Electronic Valve Act, SR, 24V, 0-10V / 4-20 mA Proport Control | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/SAS61.33U_78a9114f-bcb0-4494-9269-0c4c103614c9_large.jpg?v=1720023835)
SAS61.33U | MT Series SAS Electronic Valve Act, SR, 24V, 0-10V / 4-20 mA Proport Control | Siemens
Brand: Siemens
SKU: SAS61.33U![Veris PW2LX05S Pressure | Wet | NEMA 4 | LCD | 0-250PSID | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/PW2LX05S_large.jpg?v=1720029916)
PW2LX05S | Pressure | Wet | NEMA 4 | LCD | 0-250PSID | Veris
Brand: Veris
SKU: PW2LX05S![Siemens RDY2000BN BACnet Commercial Thermostat | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/RDY2000BN_e3c0626d-a99d-46c3-b2b3-52fd3373e5c4_large.jpg?v=1720023806)
RDY2000BN | BACnet Commercial Thermostat | Siemens
Brand: Siemens
SKU: RDY2000BN![Viconics R820-643-REV2 SCR Power controller 600 V, 45 A, 3 phase | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/r820_7cb77ca8-160c-48e9-aeff-0d2c30617492_large.jpg?v=1720030225)
R820-643-REV2 | SCR Power controller 600 V, 45 A, 3 phase | Viconics
Brand: Viconics
SKU: R820-643-REV2![iO HVAC Controls iO-WR-XR Extended Range wireless relay kit | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/iO_WR_XR_web_large.png?v=1719992337)
iO-WR-XR | Extended Range wireless relay kit | iO HVAC Controls (OBSOLETE)
Brand: iO HVAC Controls
SKU: iO-WR-XR