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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 85930-019-216 IR-CH4,Replacement Sensor, 0-100% | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-85930-017-019-ethanol_44792db0-002f-4fd0-83a0-05e499feb438_medium.jpg?v=1719981305)
85930-019-216 | IR-CH4, Replacement Sensor, 0-100% | ACI
Brand: ACI
SKU: 85930-019-216
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![ACI 85930-019-415 IR-CO2, Replacement Sensor, 0-100% | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-85930-017-019-ethanol_e5112efc-0466-4939-8c16-975dc43c9878_medium.jpg?v=1719981271)
85930-019-415 | IR-CO2, Replacement Sensor, 0-100% | ACI
Brand: ACI
SKU: 85930-019-415
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![ACI 85930-019-315 IR-CO2, Replacement Sensor, 0-20% | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-85930-017-019-ethanol_bf0fef34-d1f0-4448-81b8-75ea52e80b40_medium.jpg?v=1719981292)
85930-019-315 | IR-CO2, Replacement Sensor, 0-20% | ACI
Brand: ACI
SKU: 85930-019-315
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![ACI 85930-018-101 HBR, Replacement Sensor, 0-30ppm | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-85930-017-019-ethanol_1c6512eb-c8e9-4ca9-90d2-4588b48ef6c7_medium.jpg?v=1719981284)
85930-018-101 | HBR, Replacement Sensor, 0-30ppm | ACI
Brand: ACI
SKU: 85930-018-101
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![ACI A/AN-A-50'-4X AVERAGING 50', 4X | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-a-100ks-a-24-4x_7de8951b-f076-4136-915a-e0680f7924c8_medium.png?v=1719981842)
A / AN-A-50'-4X | AVERAGING 50', 4X | ACI
Brand: ACI
SKU: A/AN-A-50'-4X
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![ACI 85930-018-012 Q5/B5, ETO, Replacement Sensor, 0-20ppm | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-85930-017-019-ethanol_c8cc59f5-4f85-4b21-ad47-ffefb34a2f42_medium.jpg?v=1719981296)
85930-018-012 | Q5 / B5, ETO, Replacement Sensor, 0-20ppm | ACI
Brand: ACI
SKU: 85930-018-012
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![ACI 85930-018-004 NO, Replacement Sensor, 0-100ppm | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-85930-017-019-ethanol_190c23e4-3448-4fa7-a662-3d295ba26882_medium.jpg?v=1719981279)
85930-018-004 | NO, Replacement Sensor, 0-100ppm | ACI
Brand: ACI
SKU: 85930-018-004
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![ACI 85930-018-100 B2H6, Replacement Sensor, 0-2ppm | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-85930-017-019-ethanol_4f1d7608-6706-45e1-bfbe-df3fabac13d6_medium.jpg?v=1719981279)
85930-018-100 | B2H6, Replacement Sensor, 0-2ppm | ACI
Brand: ACI
SKU: 85930-018-100
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![ACI 85930-018-098 SIH4, Replacement Sensor,0-50ppm | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-85930-017-019-ethanol_4d9444ac-91ce-433c-82ae-2231f4112202_medium.jpg?v=1719981301)
85930-018-098 | SIH4, Replacement Sensor, 0-50ppm | ACI
Brand: ACI
SKU: 85930-018-098
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![ACI 85930-018-097 PH3, Replacement Sensor, 0-5ppm | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-85930-017-019-ethanol_ca25daa7-fd7a-46ca-aaf8-90f94a84521d_medium.jpg?v=1719981270)
85930-018-097 | PH3, Replacement Sensor, 0-5ppm | ACI
Brand: ACI
SKU: 85930-018-097
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![ACI 85930-018-096 ASH3, Replacement Sensor, 0-1ppm | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-85930-017-019-ethanol_1bed084d-1861-4690-9e9d-9e550bf1f51f_medium.jpg?v=1719981301)
85930-018-096 | ASH3, Replacement Sensor, 0-1ppm | ACI
Brand: ACI
SKU: 85930-018-096
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![ACI 85930-018-014 Replacement Sensor, 0-2ppm | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-85930-017-019-ethanol_48e4f233-940e-4dc7-b539-da11efafcb58_medium.jpg?v=1719981279)
85930-018-014 | Replacement Sensor, 0-2ppm | ACI
Brand: ACI
SKU: 85930-018-014
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![ACI 85930-019-016 IR-CH4,Replacement Sensor, 0-100%LEL | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-85930-017-019-ethanol_9210148f-280d-4980-8bb2-31df273ea2ed_medium.jpg?v=1719981297)
85930-019-016 | IR-CH4, Replacement Sensor, 0-100%LEL | ACI
Brand: ACI
SKU: 85930-019-016
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![ACI 85930-018-011 O3, Replacement Sensor, 0-1ppm | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-85930-017-019-ethanol_53862c19-f09a-49f1-9d33-829e59031d94_medium.jpg?v=1719981288)
85930-018-011 | O3, Replacement Sensor, 0-1ppm | ACI
Brand: ACI
SKU: 85930-018-011
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![ACI 85930-018-209 NH3,Replacement Sensor,0-1000ppm | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-85930-017-019-ethanol_137aa61e-3f02-4a12-9ca5-dd8d22dfe88b_medium.jpg?v=1719981274)
85930-018-209 | NH3, Replacement Sensor, 0-1000ppm | ACI
Brand: ACI
SKU: 85930-018-209
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![ACI 85930-018-007 HCN, Replacement Sensor, 0-50ppm | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-85930-017-019-ethanol_456bf211-0bfc-4890-af1b-3100cb911543_medium.jpg?v=1719981280)
85930-018-007 | HCN, Replacement Sensor, 0-50ppm | ACI
Brand: ACI
SKU: 85930-018-007
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![ACI 85930-018-008 HCI, Replacement Sensor, 0-30ppm | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-85930-017-019-ethanol_008c458b-564d-45ec-8342-de5371786f6e_medium.jpg?v=1719981301)
85930-018-008 | HCI, Replacement Sensor, 0-30ppm | ACI
Brand: ACI
SKU: 85930-018-008
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![ACI 85930-018-202 H2S, Replacement Sensor,0-100ppm | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-85930-017-019-ethanol_a6eff63f-76eb-49ca-9bf7-68508ff0faa4_medium.jpg?v=1719981280)
85930-018-202 | H2S, Replacement Sensor, 0-100ppm | ACI
Brand: ACI
SKU: 85930-018-202
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![ACI 85930-018-002 H2S, Replacement Sensor, 0-25ppm | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-85930-017-019-ethanol_2360864c-693b-48f9-bd9d-280cbb152d06_medium.jpg?v=1719981276)
85930-018-002 | H2S, Replacement Sensor, 0-25ppm | ACI
Brand: ACI
SKU: 85930-018-002
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![ACI 85930-017-026 BUTAN, Replacement Sensor, 0-100% | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-85930-017-019-ethanol_medium.jpg?v=1719981265)
85930-017-026 | BUTAN, Replacement Sensor, 0-100% | ACI
Brand: ACI
SKU: 85930-017-026
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![ACI 85930-018-099 GEH4, Replacement Sensor, 0-2ppm | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-85930-017-019-ethanol_8b141c7b-a879-447d-b52d-e1efd9a60d4c_medium.jpg?v=1719981267)
85930-018-099 | GEH4, Replacement Sensor, 0-2ppm | ACI
Brand: ACI
SKU: 85930-018-099
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![ACI 85930-017-025 CH3CO, Replacement Sensor,0-100% | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-85930-017-019-ethanol_53931353-909f-4b8f-9942-f5b0d89ec463_medium.jpg?v=1719981288)
85930-017-025 | CH3CO, Replacement Sensor, 0-100% | ACI
Brand: ACI
SKU: 85930-017-025
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![ACI 85930-017-024 C6H6, Replacement Sensor, 0-100% | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-85930-017-019-ethanol_db05e9e6-cfdc-4e0a-8600-cf39831bda9f_medium.jpg?v=1719981263)
85930-017-024 | C6H6, Replacement Sensor, 0-100% | ACI
Brand: ACI
SKU: 85930-017-024
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![ACI 85930-017-023 CH3OH, Replacement Sensor,0-100% | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aci-85930-017-019-ethanol_3ff2c1a3-5476-4d4b-8992-61d762d983d4_medium.jpg?v=1719981288)
85930-017-023 | CH3OH, Replacement Sensor, 0-100% | ACI
Brand: ACI
SKU: 85930-017-023
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Brand: Siemens
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