Sensors Duct Sensor configuration
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![Image for Gas Detection](http://blackhawksupply.com/cdn/shop/files/aci-q6-co-h2-100l_905be93c-e90a-4247-9774-e5e64c2a4389_100x.jpg?v=1719983058)
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![Image for Smoke Sensors](http://blackhawksupply.com/cdn/shop/files/aci-rt-3000-p_c3917f02-db34-450d-8ddf-de5d220f5ba4_100x.png?v=1719983110)
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![Image for Flame Sensors](http://blackhawksupply.com/cdn/shop/files/578623_100x.jpg?v=1720025028)
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![Siemens QAM2161.040 Duct Temperature Sensor, 0 to 10 Vdc, 16-Inch | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/QAM2161.040_medium.jpg?v=1720023838)
QAM2161.040 | Duct Temperature Sensor, 0 to 10 Vdc, 16-Inch | Siemens
Brand: Siemens
SKU: QAM2161.040
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![Siemens QAM2020.020 Duct Point Temperature Sensor, 1K Ohm Nickel at 32 Deg F, 8-Inch | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/QAM2020.020_medium.jpg?v=1720023825)
QAM2020.020 | Duct Point Temperature Sensor, 1K Ohm Nickel at 32 Deg F, 8-Inch | Siemens
Brand: Siemens
SKU: QAM2020.020
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![Siemens QAM2021.020 Duct Point Temperature sensor, 1K Ohm Nickel at 70 Deg F, 8-Inch | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/QAM2021.020_medium.jpg?v=1720023798)
QAM2021.020 | Duct Point Temperature sensor, 1K Ohm Nickel at 70 Deg F, 8-Inch | Siemens
Brand: Siemens
SKU: QAM2021.020
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![Siemens QFM81.21 Duct Hygrostat, 30 to 90% RH | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/QFM81.21_medium.jpg?v=1720023796)
QFM81.21 | Duct Hygrostat, 30 to 90% RH | Siemens
Brand: Siemens
SKU: QFM81.21
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![Siemens QAM2032.250 Duct Point Temperature Sensor, 10K Ohm Type 3, 8-Foot | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/logo_ffc05765-4dd9-4405-b0be-bf5b542f69de_medium.png?v=1720023793)
QAM2032.250 | Duct Point Temperature Sensor, 10K Ohm Type 3, 8-Foot | Siemens
Brand: Siemens
SKU: QAM2032.250
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![Siemens QFM4171 Duct RH and Temp Sensor, 2 percent certified, RH: 4-20 mA T: 4-20 mA | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/QFM4171_medium.jpg?v=1720023793)
QFM4171 | Duct RH and Temp Sensor, 2 percent certified, RH: 4-20 mA T: 4-20 mA | Siemens
Brand: Siemens
SKU: QFM4171
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![Siemens QAM2020.045 Duct Point Temperature Sensor, 1K Ohm Nickel at 32 Deg F, 18-Inch | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/QAM2020.045_medium.jpg?v=1720023787)
QAM2020.045 | Duct Point Temperature Sensor, 1K Ohm Nickel at 32 Deg F, 18-Inch | Siemens
Brand: Siemens
SKU: QAM2020.045
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![Siemens QAM2130.040 Duct Temperature Sensor, 10K Ohm NTC Type 2, 16-Inch | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/QAM2130.040_medium.jpg?v=1720023774)
QAM2130.040 | Duct Temperature Sensor, 10K Ohm NTC Type 2, 16-Inch | Siemens
Brand: Siemens
SKU: QAM2130.040
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![Siemens QAM2012.045 Duct Point Temperature Sensor, 1K Ohm Platinum, (385 Alpha), 18-Inch | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/QAM2012.045_medium.jpg?v=1720023771)
QAM2012.045 | Duct Point Temperature Sensor, 1K Ohm Platinum, (385 Alpha), 18-Inch | Siemens
Brand: Siemens
SKU: QAM2012.045
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![Siemens QFM4160 Duct RH and Temp Sensor, 2 percent certified, RH: 0-10 Vdc, T: 0-10 Vdc | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/QFM4160_medium.jpg?v=1720023769)
QFM4160 | Duct RH and Temp Sensor, 2 percent certified, RH: 0-10 Vdc, T: 0-10 Vdc | Siemens
Brand: Siemens
SKU: QFM4160
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![Siemens 535-490-36 Rigid Averaging Duct Sensor, 20 to 120 Deg F, 36-Inch | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/535-490-36_medium.jpg?v=1720022566)
535-490-36 | Rigid Averaging Duct Sensor, 20 to 120 Deg F, 36-Inch | Siemens
Brand: Siemens
SKU: 535-490-36
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![Siemens 536-378 Air Velocity Sensor Pickup Probe Kit, 2-pipe, 8" (203 mm) | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/536-378_medium.jpg?v=1720022561)
536-378 | Air Velocity Sensor Pickup Probe Kit, 2-pipe, 8" (203 mm) | Siemens
Brand: Siemens
SKU: 536-378
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![Siemens 535-490-24 Rigid Averaging Duct Sensor, 20 to 120 Deg F, 24-Inch | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/535-490-24_medium.jpg?v=1720022551)
535-490-24 | Rigid Averaging Duct Sensor, 20 to 120 Deg F, 24-Inch | Siemens
Brand: Siemens
SKU: 535-490-24
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![Siemens 536-376 Air Velocity Sensor Pickup Probe Kit, 2-pipe, 6" (152 mm) | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/536-376_medium.jpg?v=1720022546)
536-376 | Air Velocity Sensor Pickup Probe Kit, 2-pipe, 6" (152 mm) | Siemens
Brand: Siemens
SKU: 536-376
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![Siemens 533-377-8 Duct Point Temperature Sensor, Platinum, 30 to 250 Deg F, 8-Inch | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/533-377-8_medium.jpg?v=1720022546)
533-377-8 | Duct Point Temperature Sensor, Platinum, 30 to 250 Deg F, 8-Inch | Siemens
Brand: Siemens
SKU: 533-377-8
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![Siemens 536-382 Air Velocity Sensor Pickup Probe Kit, 2-pipe, 12" (305 mm) | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/536-382_medium.jpg?v=1720022545)
536-382 | Air Velocity Sensor Pickup Probe Kit, 2-pipe, 12" (305 mm) | Siemens
Brand: Siemens
SKU: 536-382
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![Senva Sensors HD-3F Duct, 3% RH, 10k Type3 | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/Senva_Family_HD_660639e0-7567-4a6e-b34f-332fa1f4a150_medium.png?v=1720021076)
HD-3F | Duct, 3% RH, 10k Type3 | Senva Sensors (OBSOLETE)
Brand: Senva Sensors
SKU: HD-3F
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![Senva Sensors HR-2A Wall, 2% RH Transmitter | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/Senva_Family_CHTWL_e9498a1e-52d7-4fce-82be-9cee9cd0899e_medium.png?v=1720021060)
HR-2A | Wall, 2% RH Transmitter | Senva Sensors (OBSOLETE)
Brand: Senva Sensors
SKU: HR-2A
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![Senva Sensors CO2D-VAL-H Duct, CO2, 3k Thermistor | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/co2d_9926ea18-b82e-4173-86d0-284f711ef640_medium.png?v=1720021035)
CO2D-VAL-H | Duct, CO2, 3k Thermistor | Senva Sensors (OBSOLETE)
Brand: Senva Sensors
SKU: CO2D-VAL-H
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![Senva Sensors CO2D-VAL-A Duct, CO2 | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/co2d_9ebd774e-b7b1-400b-aec3-26e2997de976_medium.png?v=1720021019)
CO2D-VAL-A | Duct, CO2 | Senva Sensors (OBSOLETE)
Brand: Senva Sensors
SKU: CO2D-VAL-A
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![Mamac TE-702-B-4-D 1000 ohm (Nickel) | Duct Temperature Sensor | Sensor Length: 12 inch | Galvanized Housing | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/TE-702-B-4-D_8434f299-eb1e-447c-bb3b-e17579d29901_medium.png?v=1720013101)
TE-702-B-4-D | 1000 ohm (Nickel) | Duct Temperature Sensor | Sensor Length: 12 inch | Galvanized Housing | Mamac
Brand: Mamac
SKU: TE-702-B-4-D
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![Mamac TE-702-A-7-C 10K Ohm Type III | Duct Temperature Sensor | Sensor Length: 8 inch | Plastic Housing | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/TE-702-A-7-C_medium.png?v=1720013094)
TE-702-A-7-C | 10K Ohm Type III | Duct Temperature Sensor | Sensor Length: 8 inch | Plastic Housing | Mamac
Brand: Mamac
SKU: TE-702-A-7-C
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![Mamac TE-702-C-12-D 10K Ohm Type II | Duct Temperature Sensor | Sensor Length: 12 inch | NEMA 4 Housing | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/TE-702-C-12-D_medium.png?v=1720013093)
TE-702-C-12-D | 10K Ohm Type II | Duct Temperature Sensor | Sensor Length: 12 inch | NEMA 4 Housing | Mamac
Brand: Mamac
SKU: TE-702-C-12-D
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![Mamac TE-702-A-7-A 10K Ohm Type III | Duct Temperature Sensor | Sensor Length: 4 inch | Plastic Housing | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/TE-702-A-7-A_medium.png?v=1720013090)
TE-702-A-7-A | 10K Ohm Type III | Duct Temperature Sensor | Sensor Length: 4 inch | Plastic Housing | Mamac
Brand: Mamac
SKU: TE-702-A-7-A
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