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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/100-2W-D-8"-EXPL 100 Ohm (Two Wires) RTD, Hazardous, Duct, 8" | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-a-100-3w-d-18-4x_55e57f2a-c188-4a96-a2bd-8483b9bfb1cc_medium.png?v=1718739746)
A / 100-2W-D-8"-EXPL | 100 Ohm (Two Wires) RTD, Hazardous, Duct, 8" | ACI
Brand: ACI
SKU: A/100-2W-D-8"-EXPL
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![ACI A/20K-PO-2"-CHP 20,000 Ohm Thermistor, Connection Head Probe, 1/2" X 1/2" NPT, 2” | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-a-20k-po-4-expl_medium.jpg?v=1720046119)
A / 20K-PO-2"-CHP | 20, 000 Ohm Thermistor, Connection Head Probe, 1 / 2" X 1 / 2" NPT, 2” | ACI
Brand: ACI
SKU: A/20K-PO-2"-CHP
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![ACI A/20K-IM-8"-GD 20,000 Ohm Thermistor, Immersion, Machined Well, 8", Galvanized Enclosure | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-a-cp-im-4-gd_33182d09-14a4-465e-9493-9b248e605f0e_medium.jpg?v=1720046121)
A / 20K-IM-8"-GD | 20, 000 Ohm Thermistor, Immersion, Machined Well, 8", Galvanized Enclosure | ACI
Brand: ACI
SKU: A/20K-IM-8"-GD
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![ACI A/10KS-A-12'-PB-NIST 10,000 Ohm Thermistor, Copper Averaging, 12', Plastic Enclosure, NIST cert | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-a-1k-ni-a-12-bb_b2666a0c-f712-4cf0-b868-d417ceeeb2c2_medium.png?v=1720046115)
A / 10KS-A-12'-PB-NIST | 10, 000 Ohm Thermistor, Copper Averaging, 12', Plastic Enclosure, NIST cert | ACI
Brand: ACI
SKU: A/10KS-A-12'-PB-NIST
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![ACI A/20K-IM-8"-BB 20,000 Ohm Thermistor, Immersion, Machined Well, 8", NEMA 3R Enclosure | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-a-1k-3w-ht-im-4-bb_ccb063b8-5cf4-443e-9562-c2d914eec178_medium.png?v=1720046119)
A / 20K-IM-8"-BB | 20, 000 Ohm Thermistor, Immersion, Machined Well, 8", NEMA 3R Enclosure | ACI
Brand: ACI
SKU: A/20K-IM-8"-BB
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![ACI A/10K-E1-PO-8"-CHP 10,000 Ohm Thermistor (E1), Connection Head Probe, 1/2" X 1/2" NPT, 8” | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-a-20k-po-4-expl_0409de84-b359-4352-a85e-a92701422d14_medium.jpg?v=1720046115)
A / 10K-E1-PO-8"-CHP | 10, 000 Ohm Thermistor (E1), Connection Head Probe, 1 / 2" X 1 / 2" NPT, 8” | ACI
Brand: ACI
SKU: A/10K-E1-PO-8"-CHP
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![ACI A/1K-2W-PO-4"-CHP 1,000 Ohm (Two Wires) RTD, Connection Head Probe, 1/2" X 1/2" NPT, 4” | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/logo_aci_product_b26c7fde-b347-497c-acd4-32fb8e3cb37a_medium.png?v=1720046118)
A / 1K-2W-PO-4"-CHP | 1, 000 Ohm (Two Wires) RTD, Connection Head Probe, 1 / 2" X 1 / 2" NPT, 4” | ACI
Brand: ACI
SKU: A/1K-2W-PO-4"-CHP
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![ACI A/1K-2W-PO-2"-10'CL2P-NIST 1,000 Ohm (Two Wires) RTD, Probe Only, 2", 10' Plenum Cable, NIST cert | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-a-10k-e1-po-4-10-cl2p-nist_75c12115-4bc2-42e8-a94d-66a6e3b8fcd0_medium.png?v=1720046115)
A / 1K-2W-PO-2"-10'CL2P-NIST | 1, 000 Ohm (Two Wires) RTD, Probe Only, 2", 10' Plenum Cable, NIST cert | ACI
Brand: ACI
SKU: A/1K-2W-PO-2"-10'CL2P-NIST
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![ACI A/20K-IM-8"-4X 20,000 Ohm Thermistor, Immersion, Machined Well, 8", NEMA 4X Enclosure | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-a-cp-im-4-gd_3e35aad5-2915-4763-bbad-a94fb8cdbb4c_medium.jpg?v=1720046119)
A / 20K-IM-8"-4X | 20, 000 Ohm Thermistor, Immersion, Machined Well, 8", NEMA 4X Enclosure | ACI
Brand: ACI
SKU: A/20K-IM-8"-4X
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![ACI A/1K-NI-RSO-A09-B4 1,000 Ohm Nickel RTD, Room (R), Setpoint 0 to 2K Ohms, Override, 55-85 Sticker | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-a-csi-rso-rj6-a29-c5_b0285946-8587-4a3a-8ac7-84cc8951259b_medium.png?v=1720046119)
A / 1K-NI-RSO-A09-B4 | 1, 000 Ohm Nickel RTD, Room (R), Setpoint 0 to 2K Ohms, Override, 55-85 Sticker | ACI
Brand: ACI
SKU: A/1K-NI-RSO-A09-B4
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![ACI A/1K-NI-R2SO-A09-B4 1,000 Ohm Nickel RTD, Room (R2), Setpoint 0 to 2K Ohms, Override,55-85 Sticker | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-a-cp-r2so-a02-c5_69cff3de-e6a5-46aa-acfe-eebeea7acf62_medium.png?v=1720046119)
A / 1K-NI-R2SO-A09-B4 | 1, 000 Ohm Nickel RTD, Room (R2), Setpoint 0 to 2K Ohms, Override, 55-85 Sticker | ACI
Brand: ACI
SKU: A/1K-NI-R2SO-A09-B4
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![ACI A/1K-3W-IM-2.5"-BB 1,000 Ohm (Three Wires) RTD, Immersion, Machined Well, 2.5", NEMA 3R Enclosure | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-a-1k-3w-ht-im-4-bb_35aabbcb-71ad-4256-9cf8-ddb0d51c1860_medium.png?v=1720046119)
A / 1K-3W-IM-2.5"-BB | 1, 000 Ohm (Three Wires) RTD, Immersion, Machined Well, 2.5", NEMA 3R Enclosure | ACI
Brand: ACI
SKU: A/1K-3W-IM-2.5"-BB
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![ACI A/1K-NI-IM-6"-PB 1,000 Ohm Nickel RTD, Immersion, Machined Well, 6", Plastic Enclosure | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-a-cp-im-4-gd_d411d515-48f7-4caf-9635-5ca2e5dc610f_medium.jpg?v=1720046119)
A / 1K-NI-IM-6"-PB | 1, 000 Ohm Nickel RTD, Immersion, Machined Well, 6", Plastic Enclosure | ACI
Brand: ACI
SKU: A/1K-NI-IM-6"-PB
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![ACI A/100-3W-INW-8"-GD 100 Ohm (Three Wires) RTD, Immersion, No Well, 8", Galvanized Enclosure | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-a-tt100-inw-2-5-1-gd_31c167af-bc32-4e7f-8d94-b85c661feda6_medium.png?v=1720046112)
A / 100-3W-INW-8"-GD | 100 Ohm (Three Wires) RTD, Immersion, No Well, 8", Galvanized Enclosure | ACI
Brand: ACI
SKU: A/100-3W-INW-8"-GD
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![ACI A/1.8K-IM-2.5"-GD 1,800 Ohm Thermistor, Immersion, Machined Well, 2.5", Galvanized Enclosure | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-a-cp-im-4-gd_5f100b5c-4b9d-4f8d-8ca3-4b57c332dd22_medium.jpg?v=1720046116)
A / 1.8K-IM-2.5"-GD | 1, 800 Ohm Thermistor, Immersion, Machined Well, 2.5", Galvanized Enclosure | ACI
Brand: ACI
SKU: A/1.8K-IM-2.5"-GD
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![ACI A/100-2W-INW-4"-4X-NIST 100 Ohm (Two Wires) RTD, Immersion, No Well, 4", NEMA 4X Enclosure, NIST Cert | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-a-tt1k-inw-6-4-4x-potted_a756951d-cc4e-4b9d-aece-a4276e10f1f0_medium.jpg?v=1720046115)
A / 100-2W-INW-4"-4X-NIST | 100 Ohm (Two Wires) RTD, Immersion, No Well, 4", NEMA 4X Enclosure, NIST Cert | ACI
Brand: ACI
SKU: A/100-2W-INW-4"-4X-NIST
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![ACI A/1K-3W-HT-IM-4"-GD 1,000 Ohm (Three Wires) RTD, High Temperature Immersion, Machined Well, 4", Galvanized Enclosure | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-a-1k-3w-ht-im-2-5-gd_medium.png?v=1720046119)
A / 1K-3W-HT-IM-4"-GD | 1, 000 Ohm (Three Wires) RTD, High Temperature Immersion, Machined Well, 4", Galvanized Enclosure | ACI
Brand: ACI
SKU: A/1K-3W-HT-IM-4"-GD
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![ACI A/1.8K-IM-4"-GD 1,800 Ohm Thermistor, Immersion, Machined Well, 4", Galvanized Enclosure | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-a-cp-im-4-gd_2f7a715d-9a8d-42e0-9477-2c6a1c4827d0_medium.jpg?v=1720046116)
A / 1.8K-IM-4"-GD | 1, 800 Ohm Thermistor, Immersion, Machined Well, 4", Galvanized Enclosure | ACI
Brand: ACI
SKU: A/1.8K-IM-4"-GD
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![ACI 85930-017-018-HYDROGEN Smart Sensor replacement, Hydrogen, 0-100% LEL | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-85930-017-019-ethanol_dbf5dc60-91c6-40cf-a6fa-2738aa4dd6b8_medium.jpg?v=1720046112)
85930-017-018-HYDROGEN | Smart Sensor replacement, Hydrogen, 0-100% LEL | ACI
Brand: ACI
SKU: 85930-017-018-HYDROGEN
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![ACI A/1K-2W-PO-18"-CHP 1,000 Ohm (Two Wires) RTD, Connection Head Probe, 1/2" X 1/2" NPT, 18” | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-a-0-1cp-po-4_5efe4b99-8502-4efe-82e1-7e1250930989_medium.jpg?v=1720046118)
A / 1K-2W-PO-18"-CHP | 1, 000 Ohm (Two Wires) RTD, Connection Head Probe, 1 / 2" X 1 / 2" NPT, 18” | ACI
Brand: ACI
SKU: A/1K-2W-PO-18"-CHP
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![ACI A/20K-PO-4"-CHP 20,000 Ohm Thermistor, Connection Head Probe, 1/2" X 1/2" NPT, 4” | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-a-20k-po-4-expl_b490db33-88af-454b-ade5-01045f40da8a_medium.jpg?v=1720046119)
A / 20K-PO-4"-CHP | 20, 000 Ohm Thermistor, Connection Head Probe, 1 / 2" X 1 / 2" NPT, 4” | ACI
Brand: ACI
SKU: A/20K-PO-4"-CHP
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![ACI A/100-2W-PO-4"-CHP 100 Ohm (Two Wires) RTD, Connection Head Probe, 1/2" X 1/2" NPT, 4” | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-a-10k-e1-po-4-10-cl2p-nist_d3b142f1-8763-493f-9f58-50b62856f593_medium.png?v=1720046112)
A / 100-2W-PO-4"-CHP | 100 Ohm (Two Wires) RTD, Connection Head Probe, 1 / 2" X 1 / 2" NPT, 4” | ACI
Brand: ACI
SKU: A/100-2W-PO-4"-CHP
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![ACI A/1K-2W-PO-2"-CHP 1,000 Ohm (Two Wires) RTD, Connection Head Probe, 1/2" X 1/2" NPT, 2” | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-a-10k-e1-po-4-10-cl2p-nist_4e81845c-632b-4390-8a67-9fe8878bddea_medium.png?v=1720046115)
A / 1K-2W-PO-2"-CHP | 1, 000 Ohm (Two Wires) RTD, Connection Head Probe, 1 / 2" X 1 / 2" NPT, 2” | ACI
Brand: ACI
SKU: A/1K-2W-PO-2"-CHP
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![ACI A/1K-NI-PO-8"-CHP 1,000 Ohm Nickel RTD, Connection Head Probe, 1/2" X 1/2" NPT, 8” | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-a-0-1cp-po-4_b0817e6a-6311-4f20-acfe-f5106febcdf3_medium.jpg?v=1720046119)
A / 1K-NI-PO-8"-CHP | 1, 000 Ohm Nickel RTD, Connection Head Probe, 1 / 2" X 1 / 2" NPT, 8” | ACI
Brand: ACI
SKU: A/1K-NI-PO-8"-CHP
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