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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/6" Stainless Thermowell | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-a-2-5_3a502eee-49bb-42d7-9825-1e1f7c60bcfe_medium.png?v=1720808210)
A / 6" | Stainless Thermowell | ACI
Brand: ACI
SKU: A/6"
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![ACI A/3K-R 3K ohm | Room Zone Wall Temperature Sensor | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-a-cp-r-rj6_1d06fc60-bfb7-4c52-832e-3471d62be28c_medium.png?v=1719981766)
A / 3K-R | 3K ohm | Room Zone Wall Temperature Sensor | ACI
Brand: ACI
SKU: A/3K-R
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![ACI A/20K-SBS 20K ohm | Stainless Steel Button Temperature Sensor | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-a-1-8k-sbs_3ed3b98c-6cc1-42cf-b212-bfd200c92316_medium.png?v=1719981721)
A / 20K-SBS | 20K ohm | Stainless Steel Button Temperature Sensor | ACI
Brand: ACI
SKU: A/20K-SBS
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![ACI A/1K-2W-SBS RTD 1000 ohm (2 wire) | Stainless Steel Button Temperature Sensor | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-a-1-8k-sbs_9d75b05c-068a-4c9b-acdf-99b6c88fd3c8_medium.png?v=1719981570)
A / 1K-2W-SBS | RTD 1000 ohm (2 wire) | Stainless Steel Button Temperature Sensor | ACI
Brand: ACI
SKU: A/1K-2W-SBS
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![ACI A/1K-2W-BP RTD 1000 ohm (2 wire) | Bullet Probe Temperature Sensor | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-a-1-8k-bp_3481f984-d366-47d3-b542-784f23a0f5fc_medium.png?v=1719981502)
A / 1K-2W-BP | RTD 1000 ohm (2 wire) | Bullet Probe Temperature Sensor | ACI
Brand: ACI
SKU: A/1K-2W-BP
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![ACI A/10' Tube Pneumatic Pressure Tube | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-a-20-tube_medium.jpg?v=1719981449)
A / 10' Tube | Pneumatic Pressure Tube | ACI
Brand: ACI
SKU: A/10' Tube
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![ACI 83830-020-000 CO CALIBRATION ADAPTER(CTS-M5) | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-84330-013-000_2844cb1c-949f-49e2-9e94-a3cf24a37552_medium.png?v=1718739746)
83830-020-000 | CO CALIBRATION ADAPTER(CTS-M5) | ACI
Brand: ACI
SKU: 83830-020-000
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![ACI F106710PA 10 PPM NITROGEN DIOXIDE, 34 LITERS, AIR BALANCE | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/logo_aci_product_3c1eb49b-ca59-4fbc-8ab0-35c3f5d6b6e5_medium.png?v=1720033628)
F106710PA | 10 PPM NITROGEN DIOXIDE, 34 LITERS, AIR BALANCE | ACI
Brand: ACI
SKU: F106710PA
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![ACI 85930-017-019-ETHANOL Smart Sensor replacement, Ethanol, 0-100% LEL | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-85930-017-019-ethanol_3e226593-837f-42ce-9d86-75e3c388e397_medium.jpg?v=1720033516)
85930-017-019-ETHANOL | Smart Sensor replacement, Ethanol, 0-100% LEL | ACI
Brand: ACI
SKU: 85930-017-019-ETHANOL
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![ACI NZH-101 Humidstat, Room, External Setpoint Dial, SPDT, NEMA 1 | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-nzh-101_308bc6cb-4c67-4a99-89eb-dc618d138af2_medium.png?v=1719983054)
NZH-101 | Humidstat, Room, External Setpoint Dial, SPDT, NEMA 1 | ACI
Brand: ACI
SKU: NZH-101
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![ACI A/CP-PO-4"-20'CL2P-HS 10,000 Ohm Thermistor (Type II), Probe Only, 4", 20' Plenum Cable, w/ Adhesive Heat Shrink | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-a-1-8k-po-4-20-cl2p-hs_4b751e03-41a2-4866-8893-137acb643231_medium.png?v=1719982079)
A / CP-PO-4"-20'CL2P-HS | 10, 000 Ohm Thermistor (Type II), Probe Only, 4", 20' Plenum Cable, w / Adhesive Heat Shrink | ACI
Brand: ACI
SKU: A/CP-PO-4"-20'CL2P-HS
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![ACI A/0.1AN-BP-20'CL2P High Accuracy 10,000 Ohm Thermistor (Type III), Bullet Probe, 1", 20' Plenum Cable | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-a-1-8k-bp-10-cl2p_36ff2a2e-23ac-4bf2-a8e1-933b169f72ba_medium.png?v=1719981284)
A / 0.1AN-BP-20'CL2P | High Accuracy 10, 000 Ohm Thermistor (Type III), Bullet Probe, 1", 20' Plenum Cable | ACI
Brand: ACI
SKU: A/0.1AN-BP-20'CL2P
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![ACI B5-CO2-5000P-O-X BACnet MSTP, Smart Sensor, IR-Carbon Dioxide, 0-5000 ppm, 3 SPDT Relays, NEMA 4X | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-b5-butan-100l-o-x_988ca5ff-d2f1-4830-83a6-41e5499aa94e_medium.jpg?v=1719982991)
B5-CO2-5000P-O-X | BACnet MSTP, Smart Sensor, IR-Carbon Dioxide, 0-5000 ppm, 3 SPDT Relays, NEMA 4X | ACI
Brand: ACI
SKU: B5-CO2-5000P-O-X
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![ACI FAST TUBE Fast Sampling Tube | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-fast-tube_medium.jpg?v=1718739487)
FAST TUBE | Fast Sampling Tube | ACI
Brand: ACI
SKU: FAST TUBE
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Brand: Belimo
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Brand: Siemens
SKU: 547-323A