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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/50K-D-12"-PB 50,000 Ohm Thermistor, Duct, 12", Plastic Enclosure | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-a-1k-ni-d-12-bb_5e863506-0dfb-4afd-b9e1-568f15b45365_medium.png?v=1719981780)
A / 50K-D-12"-PB | 50, 000 Ohm Thermistor, Duct, 12", Plastic Enclosure | ACI
Brand: ACI
SKU: A/50K-D-12"-PB
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![ACI MS-RA/R (1) RED LED, Key Test/Reset, Single Gang SS Plate | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/logo_aci_product_10b56518-ccf4-4f6b-8750-6237488453a8_medium.png?v=1719983100)
MS-RA / R | (1) RED LED, Key Test / Reset, Single Gang SS Plate | ACI (OBSOLETE)
Brand: ACI
SKU: MS-RA/R
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![ACI A/100KS-RA-24"-PB 100,000 Ohm Thermistor, Rigid Probe Averaging, 24", Plastic Enclosure | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-a-1k-ni-d-12-bb_15911c21-6c81-4e40-a01a-5e4053827a45_medium.png?v=1719981517)
A / 100KS-RA-24"-PB | 100, 000 Ohm Thermistor, Rigid Probe Averaging, 24", Plastic Enclosure | ACI
Brand: ACI
SKU: A/100KS-RA-24"-PB
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![ACI A/50K-D-4"-PB 50,000 Ohm Thermistor, Duct, 4", Plastic Enclosure | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-a-1k-ni-d-12-bb_68d93c59-adfa-46c5-87aa-1e6d336a2f12_medium.png?v=1719981780)
A / 50K-D-4"-PB | 50, 000 Ohm Thermistor, Duct, 4", Plastic Enclosure | ACI
Brand: ACI
SKU: A/50K-D-4"-PB
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![ACI A/1K-NI-PO-4"-10'CL2P 1,000 Ohm Nickel RTD, Probe Only, 4", 10' Plenum Cable | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-a-10k-e1-po-4-10-cl2p-nist_510cd3e4-4ec4-4bed-a696-3f07c924264c_medium.png?v=1719981663)
A / 1K-NI-PO-4"-10'CL2P | 1, 000 Ohm Nickel RTD, Probe Only, 4", 10' Plenum Cable | ACI
Brand: ACI
SKU: A/1K-NI-PO-4"-10'CL2P
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![ACI MSR-AV/T/W/C AV Combination Sounder with LED Strobe, Single Gang White Plate, Clear Lens | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/logo_aci_product_a612fa8b-7b91-496d-9009-ac2778a1e76a_medium.png?v=1719983085)
MSR-AV / T / W / C | AV Combination Sounder with LED Strobe, Single Gang White Plate, Clear Lens | ACI
Brand: ACI
SKU: MSR-AV/T/W/C
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![ACI B8-CH4-100L-O-X Expl Proof, 3 SPDT Relays, BACnet MSTP, Methane Sensor, 0-100% LEL, NEMA 4X Enclosure | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-q8-butan-100l-r-x_602056f2-e74a-4728-8620-33bfb2c231ed_medium.png?v=1719982999)
B8-CH4-100L-O-X | Expl Proof, 3 SPDT Relays, BACnet MSTP, Methane Sensor, 0-100% LEL, NEMA 4X Enclosure | ACI
Brand: ACI
SKU: B8-CH4-100L-O-X
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![ACI B8-GENL-100L-O-X-GASOLINE Expl Proof, 3 SPDT Relays, BACnet MSTP, Gasoline, 0-100% LEL, NEMA 4X Enclosure | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-q8-butan-100l-r-x_768ddeb3-c3b1-4e54-b805-19daac7a7a82_medium.png?v=1719982999)
B8-GENL-100L-O-X-GASOLINE | Expl Proof, 3 SPDT Relays, BACnet MSTP, Gasoline, 0-100% LEL, NEMA 4X Enclosure | ACI
Brand: ACI
SKU: B8-GENL-100L-O-X-GASOLINE
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![ACI A/1K-3W-IM-6"-PB 1,000 Ohm (Three Wires) RTD, Immersion, Machined Well, 6", Plastic Enclosure | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-a-1k-ni-im-2-5-pb_33d7e9e7-d5ae-472b-8d93-83374c554339_medium.jpg?v=1719981585)
A / 1K-3W-IM-6"-PB | 1, 000 Ohm (Three Wires) RTD, Immersion, Machined Well, 6", Plastic Enclosure | ACI
Brand: ACI
SKU: A/1K-3W-IM-6"-PB
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![ACI A/MLP2-005-W-U-B-A-0P Differential Pressure, Panel Mount, 5.00 inWC, UniDirectional, +/- 0.25% FSO, 4-20mA | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-a-mlp2-005-w-u-a-a-0p_bc6f1438-b084-4e56-8dde-489d7e0abcd0_medium.png?v=1719982290)
A / MLP2-005-W-U-B-A-0P | Differential Pressure, Panel Mount, 5.00 inWC, UniDirectional, + / - 0.25% FSO, 4-20mA | ACI
Brand: ACI
SKU: A/MLP2-005-W-U-B-A-0P
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![ACI A/AN-BC-FA-24'-4X 10,000 Ohm Thermistor w/11K Shunt, Flexible Cable Averaging, 24', NEMA 4X Enclosure | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-a-10k-e1-fa-24-4x_68bcd62f-90b6-4aaf-8f47-cc92b1790a20_medium.png?v=1719981852)
A / AN-BC-FA-24'-4X | 10, 000 Ohm Thermistor w / 11K Shunt, Flexible Cable Averaging, 24', NEMA 4X Enclosure | ACI
Brand: ACI
SKU: A/AN-BC-FA-24'-4X
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![ACI B5-GENL-100L-O-X-HEXANE 3 SPDT Relays, BACnet MSTP, Hexane, 0-100% LEL, NEMA 4X Enclosure | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-b5-butan-100l-o-x_ef363913-0251-4882-ab0d-c7cb95bf106e_medium.jpg?v=1719982995)
B5-GENL-100L-O-X-HEXANE | 3 SPDT Relays, BACnet MSTP, Hexane, 0-100% LEL, NEMA 4X Enclosure | ACI
Brand: ACI
SKU: B5-GENL-100L-O-X-HEXANE
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![ACI A/1K-2W-FA-12'-4X 1,000 Ohm (Two Wires) RTD, Flexible Cable Averaging, 12', NEMA 4X Enclosure | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-a-10k-e1-fa-24-4x_e6ec1592-ac27-4876-bb4e-185d037d4b12_medium.png?v=1719981522)
A / 1K-2W-FA-12'-4X | 1, 000 Ohm (Two Wires) RTD, Flexible Cable Averaging, 12', NEMA 4X Enclosure | ACI
Brand: ACI
SKU: A/1K-2W-FA-12'-4X
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![ACI A/BN2120-R2 BACnet MS/TP, Modbus RTU, Relative Humidity, Room (R2) | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/logo_aci_product_88904485-3c7b-460c-84ca-586fb158dee1_medium.png?v=1719981988)
A / BN2120-R2 | BACnet MS / TP, Modbus RTU, Relative Humidity, Room (R2) | ACI (OBSOLETE)
Brand: ACI
SKU: A/BN2120-R2
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![ACI A/BN2110-INW-4-PB BACnet MS/TP, Modbus RTU, Temperature, Immersion No Well, 4", Plastic Enclosure | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/logo_aci_product_5bdcdeaa-3f82-4271-be12-24dc37a8bcc4_medium.png?v=1719981997)
A / BN2110-INW-4-PB | BACnet MS / TP, Modbus RTU, Temperature, Immersion No Well, 4", Plastic Enclosure | ACI (OBSOLETE)
Brand: ACI
SKU: A/BN2110-INW-4-PB
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![ACI A/BN2110-INW-2.5-PB BACnet MS/TP, Modbus RTU, Temperature, Immersion No Well, 2.5", Plastic Enclosure | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/logo_aci_product_abbd566f-f2f7-4bef-887f-edee316fa075_medium.png?v=1719982021)
A / BN2110-INW-2.5-PB | BACnet MS / TP, Modbus RTU, Temperature, Immersion No Well, 2.5", Plastic Enclosure | ACI (OBSOLETE)
Brand: ACI
SKU: A/BN2110-INW-2.5-PB
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![ACI A/MLP2-100-P-U-A-C-0P Differential Pressure, Panel Mount, 100 pascals, UniDirectional, +/- 0.5% FSO, 0-10VDC | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-a-mlp2-005-w-u-a-a-0p_c0887242-7e94-4b84-a6e5-62df4dce2d6e_medium.png?v=1719982315)
A / MLP2-100-P-U-A-C-0P | Differential Pressure, Panel Mount, 100 pascals, UniDirectional, + / - 0.5% FSO, 0-10VDC | ACI
Brand: ACI
SKU: A/MLP2-100-P-U-A-C-0P
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![ACI A/BN2110-O BACnet MS/TP, Modbus RTU, Temperature, Outside, Euro Enclosure | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/logo_aci_product_e75b0baa-2b5b-436f-8162-b0f80a72c055_medium.png?v=1719982016)
A / BN2110-O | BACnet MS / TP, Modbus RTU, Temperature, Outside, Euro Enclosure | ACI (OBSOLETE)
Brand: ACI
SKU: A/BN2110-O
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![ACI A/BN2110-R2 BACnet MS/TP, Modbus RTU, Temperature, Room (R2) | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/logo_aci_product_9fa3c3d8-ee8e-4e61-a786-01e0740674d7_medium.png?v=1719982003)
A / BN2110-R2 | BACnet MS / TP, Modbus RTU, Temperature, Room (R2) | ACI (OBSOLETE)
Brand: ACI
SKU: A/BN2110-R2
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