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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/100-3W-O-SUN RTD 100 ohm (3 wire) | Outdoor Outside Air Temperature Sensor | w Sun Shield | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-a-rh2-cp-o-sun-nist_4d57802e-c2ac-4be0-92a8-58a0dc8f2d5c_medium.png?v=1719981412)
A / 100-3W-O-SUN | RTD 100 ohm (3 wire) | Outdoor Outside Air Temperature Sensor | w Sun Shield | ACI
Brand: ACI
SKU: A/100-3W-O-SUN
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![ACI A/100-2W-PBS RTD 100 ohm (2 wire) | Plastic Button Temperature Sensor | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-a-1-8k-pbs_medium.png?v=1719981334)
A / 100-2W-PBS | RTD 100 ohm (2 wire) | Plastic Button Temperature Sensor | ACI
Brand: ACI
SKU: A/100-2W-PBS
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![ACI A/100-2W-DO-4" RTD 100 ohm (2 wire) | Duct Temperature Sensor | Sensor Length: 4 inch | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-a-1-8k-do-12_d057afe6-efd6-4b3f-aeca-4826ef727e8d_medium.png?v=1719981324)
A / 100-2W-DO-4" | RTD 100 ohm (2 wire) | Duct Temperature Sensor | Sensor Length: 4 inch | ACI
Brand: ACI
SKU: A/100-2W-DO-4"
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![ACI A/100-2W-BP-6'CL2P RTD 100 ohm (2 wire) | Bullet Probe Temperature Sensor | Included Wire Length: 6 feet | CL2P | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-a-1-8k-bp-10-cl2p_cbd14b26-892e-4537-bf9e-bda920f7db66_medium.png?v=1719981338)
A / 100-2W-BP-6'CL2P | RTD 100 ohm (2 wire) | Bullet Probe Temperature Sensor | Included Wire Length: 6 feet | CL2P | ACI
Brand: ACI
SKU: A/100-2W-BP-6'CL2P
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![ACI A/1.8K-R2 1.8K ohm | Room Zone Wall Temperature Sensor | Modern Housing Enclosure | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-a-an-r2-rj4_6d4b31e0-e8d3-4047-a870-e7ce479e8096_medium.png?v=1719981338)
A / 1.8K-R2 | 1.8K ohm | Room Zone Wall Temperature Sensor | Modern Housing Enclosure | ACI
Brand: ACI
SKU: A/1.8K-R2
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![ACI A/1.8K-O-BB 1.8K ohm | Outdoor Outside Air Temperature Sensor | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-a-1-8k-o-bb_b5ede300-e502-4055-99db-dc3729a91fb4_medium.png?v=1719981324)
A / 1.8K-O-BB | 1.8K ohm | Outdoor Outside Air Temperature Sensor | ACI
Brand: ACI
SKU: A/1.8K-O-BB
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![ACI TUC2-AN-F1-1J-ZY-S-X-X-X Microprocessor Based Sensor (Temp) LCD, 10,000 Ohm Thermistor (Type III), Deg F, Setpoint, Override | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-tuc2-10-f2-xx-xx-x-x-x-x_465c531b-d689-4690-b5ce-08011280ed02_medium.png?v=1720046139)
TUC2-AN-F1-1J-ZY-S-X-X-X | Microprocessor Based Sensor (Temp) LCD, 10, 000 Ohm Thermistor (Type III), Deg F, Setpoint, Override | ACI
Brand: ACI
SKU: TUC2-AN-F1-1J-ZY-S-X-X-X
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![ACI TUCH2-16C4XXXXXX-316XXXXXX Microprocessor Based Sensor (RH & Temp) LCD, RH3%:4-20mA, 4-20 mA, Deg C | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/logo_aci_product_aca579e2-7789-4a1d-b02e-41183d45e444_medium.png?v=1720046140)
TUCH2-16C4XXXXXX-316XXXXXX | Microprocessor Based Sensor (RH & Temp) LCD, RH3%:4-20mA, 4-20 mA, Deg C | ACI
Brand: ACI
SKU: TUCH2-16C4XXXXXX-316XXXXXX
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![ACI TUCH2-16F21FG0CX-216XXXXX Microprocessor Based Sensor (RH & Temp) LCD, RH2%:4-20mA, 4-20 mA, Deg F, Setpoint, Override | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-a-rh3-r-lcd-010-nist_01fb75bb-2b50-4697-900e-0aeed46d4e2a_medium.png?v=1720046143)
TUCH2-16F21FG0CX-216XXXXX | Microprocessor Based Sensor (RH & Temp) LCD, RH2%:4-20mA, 4-20 mA, Deg F, Setpoint, Override | ACI
Brand: ACI
SKU: TUCH2-16F21FG0CX-216XXXXX
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SAS61.33U | MT Series SAS Electronic Valve Act, SR, 24V, 0-10V / 4-20 mA Proport Control | Siemens
Brand: Siemens
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Brand: Veris
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RDY2000BN | BACnet Commercial Thermostat | Siemens
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R820-643-REV2 | SCR Power controller 600 V, 45 A, 3 phase | Viconics
Brand: Viconics
SKU: R820-643-REV2