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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-RSO-LCD-F-A03-C5 20,000 Ohm Thermistor, Room (R), Setpoint 0 to 10K Ohms, Override, LCD, Cool/Warm Sticker | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-a-csi-rso-rj6-a29-c5_c524792e-6298-4064-82f0-2b9e22505ede_medium.png?v=1719981745)
A / 20K-RSO-LCD-F-A03-C5 | 20, 000 Ohm Thermistor, Room (R), Setpoint 0 to 10K Ohms, Override, LCD, Cool / Warm Sticker | ACI
Brand: ACI
SKU: A/20K-RSO-LCD-F-A03-C5
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![ACI A/20K-RSO-LCD-F-A02-C5 20,000 Ohm Thermistor, Room (R), Setpoint 0 to 20K Ohms, Override, LCD, Cool/Warm Sticker | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-a-csi-rso-rj6-a29-c5_af135b56-932a-4104-857f-d3200c33aa3e_medium.png?v=1719981717)
A / 20K-RSO-LCD-F-A02-C5 | 20, 000 Ohm Thermistor, Room (R), Setpoint 0 to 20K Ohms, Override, LCD, Cool / Warm Sticker | ACI
Brand: ACI
SKU: A/20K-RSO-LCD-F-A02-C5
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![ACI A/3K-SP-OR-232 3,000 Ohm Thermistor, Wall Plate, Stainless Steel, Override, Comm Stereo Jack (3.5mm) | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-a-3k-sp-or-232_1a06eb12-d571-4ff2-959a-2c55083d8563_medium.jpg?v=1719981756)
A / 3K-SP-OR-232 | 3, 000 Ohm Thermistor, Wall Plate, Stainless Steel, Override, Comm Stereo Jack (3.5mm) | ACI
Brand: ACI
SKU: A/3K-SP-OR-232
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![ACI A/20K-RSO-A24-C5 20,000 Ohm Thermistor, Room (R), Setpoint 9.5K to 1K Ohms, Override, Cool/Warm sticker | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-a-csi-rso-rj6-a29-c5_b3b9d41d-3a50-4b3a-8fb2-ff39f8030156_medium.png?v=1719981717)
A / 20K-RSO-A24-C5 | 20, 000 Ohm Thermistor, Room (R), Setpoint 9.5K to 1K Ohms, Override, Cool / Warm sticker | ACI
Brand: ACI
SKU: A/20K-RSO-A24-C5
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![ACI A/20K-RSO-A14-C5 20,000 Ohm Thermistor, Room (R), Setpoint 10K to 0 Ohms, Override, Cool/Warm Sticker | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-a-csi-rso-rj6-a29-c5_725a16ba-4dbb-4710-b47d-2e8e70064c37_medium.png?v=1719981736)
A / 20K-RSO-A14-C5 | 20, 000 Ohm Thermistor, Room (R), Setpoint 10K to 0 Ohms, Override, Cool / Warm Sticker | ACI
Brand: ACI
SKU: A/20K-RSO-A14-C5
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![ACI A/3K-RSO-A02-C5 3,000 Ohm Thermistor, Room (R), Setpoint, Override, 0 to 20K Ohms, Cool/Warm Sticker | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-a-csi-rso-rj6-a29-c5_cbb4232f-1dc5-41c8-a7ee-7c873f2e3ec6_medium.png?v=1719981761)
A / 3K-RSO-A02-C5 | 3, 000 Ohm Thermistor, Room (R), Setpoint, Override, 0 to 20K Ohms, Cool / Warm Sticker | ACI
Brand: ACI
SKU: A/3K-RSO-A02-C5
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![ACI A/3K-R2SO-A07-G5 3,000 Ohm Thermistor, Room (R2), Setpoint 10K to 30K Ohms, Override, Blue/Red Sticker, DA | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-a-cp-r2so-a02-c5_a0af46a7-5bd7-41b1-8107-9d93b94ff842_medium.png?v=1719981775)
A / 3K-R2SO-A07-G5 | 3, 000 Ohm Thermistor, Room (R2), Setpoint 10K to 30K Ohms, Override, Blue / Red Sticker, DA | ACI
Brand: ACI
SKU: A/3K-R2SO-A07-G5
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![ACI A/20K-RA-12"-4X 20,000 Ohm Thermistor, Rigid Probe Averaging, 12", NEMA 4X Enclosure | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-a-100-3w-d-18-4x_ba7a3f02-3390-4b5f-8522-6ea196514b6b_medium.png?v=1719981702)
A / 20K-RA-12"-4X | 20, 000 Ohm Thermistor, Rigid Probe Averaging, 12", NEMA 4X Enclosure | ACI
Brand: ACI
SKU: A/20K-RA-12"-4X
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![ACI A/20K-R2S-A24-B4 20,000 Ohm Thermistor, Room (R2), Setpoint 9.5K to 1K, 55-85 Sticker | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-a-cp-r2s-a06-g5_a7f06faf-e8cd-4360-92a8-b79007268b1e_medium.png?v=1719981726)
A / 20K-R2S-A24-B4 | 20, 000 Ohm Thermistor, Room (R2), Setpoint 9.5K to 1K, 55-85 Sticker | ACI
Brand: ACI
SKU: A/20K-R2S-A24-B4
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![ACI A/20K-INW-1"-GD-NIST 20,000 Ohm Thermistor, Immersion, No Well, 1.25", Galvanized Enclosure, NIST Cert | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-a-tt100-inw-2-5-1-gd_2e87f4dd-7448-4966-aac2-48d96939a25e_medium.png?v=1719981687)
A / 20K-INW-1"-GD-NIST | 20, 000 Ohm Thermistor, Immersion, No Well, 1.25", Galvanized Enclosure, NIST Cert | ACI
Brand: ACI
SKU: A/20K-INW-1"-GD-NIST
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![ACI A/20K-A-50'-BB 20,000 Ohm Thermistor, Copper Averaging, 50', NEMA 3R Enclosure | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-a-1k-3w-a-24-bb_2ad131e7-8656-4dbe-a0c0-06ceb291ef1a_medium.png?v=1719981644)
A / 20K-A-50'-BB | 20, 000 Ohm Thermistor, Copper Averaging, 50', NEMA 3R Enclosure | ACI
Brand: ACI
SKU: A/20K-A-50'-BB
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![ACI A/3K-INW-2.5"-EXPL 3,000 Ohm Thermistor, Hazardous, Immersion, No Well, 2.5" | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-a-1-8k-inw-4-expl_97a470d8-7e58-43c7-8dea-347ac2401f56_medium.jpg?v=1719981756)
A / 3K-INW-2.5"-EXPL | 3, 000 Ohm Thermistor, Hazardous, Immersion, No Well, 2.5" | ACI
Brand: ACI
SKU: A/3K-INW-2.5"-EXPL
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![ACI A/1K-NI-R2SO-A10-D3 1,000 Ohm Nickel RTD, Room (R2), Setpoint 0 to 1K Ohms, Override, Warm/Cool Sticker | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-a-cp-r2so-a02-c5_72a27fc9-51b5-48a2-bc72-fc57b9a78e62_medium.png?v=1719981664)
A / 1K-NI-R2SO-A10-D3 | 1, 000 Ohm Nickel RTD, Room (R2), Setpoint 0 to 1K Ohms, Override, Warm / Cool Sticker | ACI
Brand: ACI
SKU: A/1K-NI-R2SO-A10-D3
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![ACI A/1K-NI-R2S-A10-B4 1,000 Ohm Nickel RTD, Room (R2), Setpoint 0 to 1K Ohms, 55-85 Sticker | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-a-cp-r2s-a06-g5_92020d45-473f-4e1b-bb0f-e5e51fbcb475_medium.png?v=1719981662)
A / 1K-NI-R2S-A10-B4 | 1, 000 Ohm Nickel RTD, Room (R2), Setpoint 0 to 1K Ohms, 55-85 Sticker | ACI
Brand: ACI
SKU: A/1K-NI-R2S-A10-B4
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![ACI A/3K-D-6"-4X 3,000 Ohm Thermistor, Duct, 6", NEMA 4X Enclosure | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-a-100-3w-d-18-4x_d42a9745-dfa3-412b-a352-b7eaef27a7c5_medium.png?v=1719981760)
A / 3K-D-6"-4X | 3, 000 Ohm Thermistor, Duct, 6", NEMA 4X Enclosure | ACI
Brand: ACI
SKU: A/3K-D-6"-4X
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![ACI A/1K-NI-PM-10'CL2P 1,000 Ohm Nickel RTD, Pipe Mount, Brass, 10' Plenum Cable | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-a-1-8k-pm-20-cl2p_cecbb371-04e5-4599-a3c1-1fad223a22c2_medium.png?v=1719981640)
A / 1K-NI-PM-10'CL2P | 1, 000 Ohm Nickel RTD, Pipe Mount, Brass, 10' Plenum Cable | ACI
Brand: ACI
SKU: A/1K-NI-PM-10'CL2P
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![ACI A/1K-3W-I-2.5"-EXPL 1,000 Ohm (Three Wires) RTD, Hazardous, Immersion, 2.5" | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-a-100-2w-i-2-5-expl_d235bad1-e9be-4bc7-9640-81eb6fc27087_medium.png?v=1719981600)
A / 1K-3W-I-2.5"-EXPL | 1, 000 Ohm (Three Wires) RTD, Hazardous, Immersion, 2.5" | ACI
Brand: ACI
SKU: A/1K-3W-I-2.5"-EXPL
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![ACI A/1K-2W-RSO-A03-C5 1,000 Ohm (Two Wires) RTD, Room (R), Setpoint 0 to 10K Ohms, Override, Cool/Warm Sticker | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-a-csi-rso-rj6-a29-c5_f2248cf1-752e-45f2-91e5-45aef13d188c_medium.png?v=1719981565)
A / 1K-2W-RSO-A03-C5 | 1, 000 Ohm (Two Wires) RTD, Room (R), Setpoint 0 to 10K Ohms, Override, Cool / Warm Sticker | ACI
Brand: ACI
SKU: A/1K-2W-RSO-A03-C5
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![ACI A/1K-2W-PO-4"-10'CL2P-HS 1,000 Ohm (Two Wires) RTD, Probe Only, 4", 10' Plenum Cable, w/ Additional Moisture Protection | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-a-1-8k-po-4-20-cl2p-hs_4f5ab538-c871-40b6-9fe9-3635d26bb518_medium.png?v=1719981556)
A / 1K-2W-PO-4"-10'CL2P-HS | 1, 000 Ohm (Two Wires) RTD, Probe Only, 4", 10' Plenum Cable, w / Additional Moisture Protection | ACI
Brand: ACI
SKU: A/1K-2W-PO-4"-10'CL2P-HS
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![ACI A/1K-2W-INW-6"-GD-NIST 1,000 Ohm (Two Wires) RTD, Immersion, No Well, 6", Galvanized Enclosure, NIST CERT | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-a-tt100-inw-2-5-1-gd_67762ebc-bca6-4d99-8c16-8fc8232d85be_medium.png?v=1719981537)
A / 1K-2W-INW-6"-GD-NIST | 1, 000 Ohm (Two Wires) RTD, Immersion, No Well, 6", Galvanized Enclosure, NIST CERT | ACI
Brand: ACI
SKU: A/1K-2W-INW-6"-GD-NIST
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![ACI A/20K-RS-232-A24-B4 20,000 Ohm Thermistor, Room (R), Setpoint 9.5K to 1K Ohms, Comm Stereo Jack (3.5mm), 55-85 Sticker | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-a-10ks-rs-a26-c5_28567f0b-1785-4f42-9c18-31e81e62e171_medium.png?v=1719981688)
A / 20K-RS-232-A24-B4 | 20, 000 Ohm Thermistor, Room (R), Setpoint 9.5K to 1K Ohms, Comm Stereo Jack (3.5mm), 55-85 Sticker | ACI
Brand: ACI
SKU: A/20K-RS-232-A24-B4
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![ACI A/1K-2W-INW-6"-EXPL-NIST 1,000 Ohm (Two Wires) RTD, Hazardous, Immersion, No Well, 6", NIST cert | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-a-1-8k-inw-4-expl_medium.jpg?v=1719981552)
A / 1K-2W-INW-6"-EXPL-NIST | 1, 000 Ohm (Two Wires) RTD, Hazardous, Immersion, No Well, 6", NIST cert | ACI
Brand: ACI
SKU: A/1K-2W-INW-6"-EXPL-NIST
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![ACI A/1K-2W-IM-2.5"-4X-NIST 1,000 Ohm (Two Wires) RTD, Immersion, Welded Well, 2.5", NEMA 4X Enclosure, NIST Cert | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-a-1k-ni-i-2-5-4x_20b6c2b7-7d19-49b6-8ccb-03b282efa1d9_medium.jpg?v=1719981532)
A / 1K-2W-IM-2.5"-4X-NIST | 1, 000 Ohm (Two Wires) RTD, Immersion, Welded Well, 2.5", NEMA 4X Enclosure, NIST Cert | ACI
Brand: ACI
SKU: A/1K-2W-IM-2.5"-4X-NIST
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