sensors
![Image for Air Quality Sensors](http://blackhawksupply.com/cdn/shop/files/ultravation-as-ih-1001_100x.jpg?v=1720029593)
![Image for Humidity Sensors](http://blackhawksupply.com/cdn/shop/files/A6V10320551_en_100x.jpg?v=1723900536)
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![Image for Room Humidity Sensors](http://blackhawksupply.com/cdn/shop/files/VT8650U5000B_100x.jpg?v=1723901181)
![Image for Flow Sensors](http://blackhawksupply.com/cdn/shop/files/FS2_600x600_5336f1a8-d144-4184-8608-eb9b756e644b_100x.gif?v=1723861785)
![Image for Network Sensors](http://blackhawksupply.com/cdn/shop/files/BAC-5051E-medium_100x.jpg?v=1720012548)
![Image for Duct Sensors](http://blackhawksupply.com/cdn/shop/files/A6V10219142_en_100x.jpg?v=1723900530)
![Image for Duct Temperature Sensors](http://blackhawksupply.com/cdn/shop/files/aci-a-tt100-lt-d-8-2-gd_1b647ff8-9a71-4bb0-80e7-b1a9242bcfe2_100x.png?v=1719982702)
![Image for Room Temperature Sensors](http://blackhawksupply.com/cdn/shop/files/A6V10260204_en_5fcfc329-6809-40f2-9f25-01d9029d73f5_100x.jpg?v=1723900511)
![Image for Room Humidity/Temperature Sensors](http://blackhawksupply.com/cdn/shop/files/logo_aci_product_4c07a5a6-75de-4335-80bb-a190ee2b2a96_100x.png?v=1719982921)
![Image for Duct Humidity Sensors](http://blackhawksupply.com/cdn/shop/files/aci-a-rh2-1k-2w-d-nist_c053cdf0-84ce-4aba-8dc0-96e222748d81_100x.jpg?v=1719982450)
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![Image for Humidity & Temperature Sensors](http://blackhawksupply.com/cdn/shop/files/HU-226-3-VDC-12_22c8888c-36c1-4e0c-88ff-47489b4d620a_100x.png?v=1720012853)
![Image for Temperature & Humidity Sensors](http://blackhawksupply.com/cdn/shop/files/PIC_AM_22DTH-5.._01_4C-product_retina_bdd3b394-8f8a-46a6-b3be-24dbdc502657_100x.jpg?v=1723858656)
![Image for Liquid Level Sensors](http://blackhawksupply.com/cdn/shop/files/F59H-1C_100x.png?v=1723867978)
![Image for Water Detection](http://blackhawksupply.com/cdn/shop/files/Senva_Family_WD_100x.jpg?v=1723872342)
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![Image for Networked Sensors](http://blackhawksupply.com/cdn/shop/files/STE-8201W80-medium_100x.jpg?v=1720012668)
![Image for Air Flow Sensors](http://blackhawksupply.com/cdn/shop/files/sce-n12fga66_100x.png?v=1723871159)
![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)
![Image for Sensor Accessories](http://blackhawksupply.com/cdn/shop/files/aci-universal-clip-6_63584f76-a29f-41a9-86ea-b829da162614_100x.jpg?v=1719983203)
![Image for Room Sensors](http://blackhawksupply.com/cdn/shop/files/Senva_Family_AQW_d13dbeab-df71-4ec7-9af9-da03b6ffc002_100x.png?v=1720021017)
![Image for Relays](http://blackhawksupply.com/cdn/shop/files/VC3504E5000_100x.jpg?v=1723901158)
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![Image for Flame Sensors](http://blackhawksupply.com/cdn/shop/files/578623_100x.jpg?v=1720025028)
![Image for Differential Pressure Sensors](http://blackhawksupply.com/cdn/shop/files/sce-n12fga33_100x.png?v=1723871140)
![Image for Covers](http://blackhawksupply.com/cdn/shop/files/VT73XX_100x.png?v=1720030229)
![Image for Timer Sensors](http://blackhawksupply.com/cdn/shop/files/THR-131-j_a290dae0-cbe7-49ed-b4a4-cac572ca7d2c_100x.jpg?v=1720054312)
![Image for Current/Voltage Sensors](http://blackhawksupply.com/cdn/shop/files/TH4-P1R1T0_76398a8d-df4f-4831-803d-0f441cc9334b_100x.jpg?v=1720047140)
![Image for Current & Voltage Sensors](http://blackhawksupply.com/cdn/shop/files/TH4-P2R0T0_ff69cba0-733a-4169-83a3-ea1d1eedbf1b_100x.jpg?v=1720046961)
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![Siemens QAA2220.FWNN Room Temperature Sensor, Nickel 1K Ohm at 32F, Full Feature, No Logo | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/A6V10260203_en_a9e11987-fcad-4bf2-aef1-4c2053282cf3_medium.jpg?v=1723900512)
QAA2220.FWNN | Room Temperature Sensor, Nickel 1K Ohm at 32F, Full Feature, No Logo | Siemens
Brand: Siemens
SKU: QAA2220.FWNN
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![Siemens QAD2012U Surface Mount Temperature Sensor (Pipe), 1K Ohm Platinum RTD (385 Alpha) | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/QAD2012U_medium.jpg?v=1720023754)
QAD2012U | Surface Mount Temperature Sensor (Pipe), 1K Ohm Platinum RTD (385 Alpha) | Siemens
Brand: Siemens
SKU: QAD2012U
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![Siemens QAC2020U Outside Air Temperature Sensor, 1K Ohm, Nickel | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/QAC2020U_medium.jpg?v=1720023753)
QAC2020U | Outside Air Temperature Sensor, 1K Ohm, Nickel | Siemens
Brand: Siemens
SKU: QAC2020U
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![Siemens QAA2232.EWNN Room Temperature Sensor, 10K Type 3 NTC Thermistor, No HMI, No Logo | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/A6V10224397_en_da9cc8ed-6302-4fb3-8e6a-18c08af94dea_medium.jpg?v=1723900515)
QAA2232.EWNN | Room Temperature Sensor, 10K Type 3 NTC Thermistor, No HMI, No Logo | Siemens
Brand: Siemens
SKU: QAA2232.EWNN
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![Siemens QAA2291.DWSC Room Temperature Sensor, Wireless - P2P, Display, Siemens Logo | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/QAA2291.DWSC_medium.jpg?v=1720023752)
QAA2291.DWSC | Room Temperature Sensor, Wireless - P2P, Display, Siemens Logo | Siemens
Brand: Siemens
SKU: QAA2291.DWSC
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![Siemens POL220.00 POL220.00 ECON CONTROL RP 0-10V 20PK | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/A6V10891187_en_ca581afd-f4a1-4796-8a2b-dc7f0b7b42b0_medium.jpg?v=1723900512)
POL220.00 | POL220.00 ECON CONTROL RP 0-10V 20PK | Siemens
Brand: Siemens
SKU: POL220.00
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![Siemens QAA2291.DWNC Room Temperature Sensor, Wireless - P2P, Display, No Logo | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/QAA2291.DWNC_medium.jpg?v=1720023750)
QAA2291.DWNC | Room Temperature Sensor, Wireless - P2P, Display, No Logo | Siemens
Brand: Siemens
SKU: QAA2291.DWNC
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![Siemens QAA2220.EWSN Room Temperature Sensor, Nickel 1K Ohm at 32F, No HMI, Siemens Logo | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/A6V10224391_en_8a1b9bdb-b907-4c50-8562-3789ee663fd8_medium.jpg?v=1723900508)
QAA2220.EWSN | Room Temperature Sensor, Nickel 1K Ohm at 32F, No HMI, Siemens Logo | Siemens
Brand: Siemens
SKU: QAA2220.EWSN
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![Siemens QAC2021U Outside Air Temperature Sensor, 1K Ohm, Nickel | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/QAC2021U_medium.jpg?v=1720023749)
QAC2021U | Outside Air Temperature Sensor, 1K Ohm, Nickel | Siemens
Brand: Siemens
SKU: QAC2021U
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![Siemens QAA22SS.FWNN Room Temp Sensor, 0-10V / 0-5V / 4-20 mA (selectable), Full Feature, No Logo | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/A6V10260203_en_de123f9d-d430-4809-8c2b-c98d30bb2ae2_medium.jpg?v=1723900510)
QAA22SS.FWNN | Room Temp Sensor, 0-10V / 0-5V / 4-20 mA (selectable), Full Feature, No Logo | Siemens
Brand: Siemens
SKU: QAA22SS.FWNN
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![Siemens POL220.05 POL220.05 ECON CONTROLLER RP 0-10VDC | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/A6V10891187_en_e9cbfe9f-fc6f-4d92-b450-4939897c468d_medium.jpg?v=1723900511)
POL220.05 | POL220.05 ECON CONTROLLER RP 0-10VDC | Siemens
Brand: Siemens
SKU: POL220.05
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![Siemens QAA2232.FWNN Room Temperature Sensor, 10K Ohm Type 3 NTC Thermistor, Full Feature, No Logo | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/A6V10260203_en_1a1c17c0-36f2-4c9a-9715-4948df24f67d_medium.jpg?v=1723900511)
QAA2232.FWNN | Room Temperature Sensor, 10K Ohm Type 3 NTC Thermistor, Full Feature, No Logo | Siemens
Brand: Siemens
SKU: QAA2232.FWNN
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![Siemens QAA4292.EWSC Series 4292 Wireless Room Temp Sensor | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/logo_af2909f5-d289-4cf5-9373-b519f2d2a4d7_medium.png?v=1720023743)
QAA4292.EWSC | Series 4292 Wireless Room Temp Sensor | Siemens (OBSOLETE)
Brand: Siemens
SKU: QAA4292.EWSC
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![Siemens POL648.10/RTU-P74 POL648.10/RTU-P74 Climatix QMX3.P74 KIT | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/siemens_57af99b5-ee43-4f11-8378-028b7f4ff0f2_medium.png?v=1723900510)
POL648.10 / RTU-P74 | POL648.10 / RTU-P74 Climatix QMX3.P74 KIT | Siemens
Brand: Siemens
SKU: POL648.10/RTU-P74
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![Siemens QAD2020U Surface Mount Temperature Sensor (Pipe), Nickel 1K Ohm (at 32 Deg F) | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/QAD2020U_medium.jpg?v=1720023743)
QAD2020U | Surface Mount Temperature Sensor (Pipe), Nickel 1K Ohm (at 32 Deg F) | Siemens
Brand: Siemens
SKU: QAD2020U
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![Siemens POL648.10/RTU-P70 POL648.10/RTU-P70 Climatix QMX3.P70 KIT | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/siemens_6e3065c4-3a06-4ad2-8114-7ad2767d679e_medium.png?v=1723900504)
POL648.10 / RTU-P70 | POL648.10 / RTU-P70 Climatix QMX3.P70 KIT | Siemens
Brand: Siemens
SKU: POL648.10/RTU-P70
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![Siemens QAA2230.FWNC Room Temp Sensor, 10K Ohm Type 2 NTC Thermistor, Full Feature, No Logo, Talon | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/A6V10260203_en_6eec7376-5ac6-42b5-8339-4e37d4ac8580_medium.jpg?v=1723900506)
QAA2230.FWNC | Room Temp Sensor, 10K Ohm Type 2 NTC Thermistor, Full Feature, No Logo, Talon | Siemens
Brand: Siemens
SKU: QAA2230.FWNC
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![Siemens QAA2291.EWNC Room Temperature Sensor, Wireless - P2P, No HMI, No Logo | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/QAA2291.EWNC_medium.jpg?v=1720023740)
QAA2291.EWNC | Room Temperature Sensor, Wireless - P2P, No HMI, No Logo | Siemens
Brand: Siemens
SKU: QAA2291.EWNC
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![Siemens QAA2212.EWNN Room Temperature Sensor, Platinum 1K Ohm (385 Alpha), No HMI, No Logo | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/A6V10224397_en_3da59e54-bf7c-480c-9ce1-362e132a1b76_medium.jpg?v=1723900508)
QAA2212.EWNN | Room Temperature Sensor, Platinum 1K Ohm (385 Alpha), No HMI, No Logo | Siemens
Brand: Siemens
SKU: QAA2212.EWNN
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![Siemens POL220.10 POL220.10 ECON CONTROLLER RP 135 OHM | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/A6V10891187_en_medium.jpg?v=1723900503)
POL220.10 | POL220.10 ECON CONTROLLER RP 135 OHM | Siemens
Brand: Siemens
SKU: POL220.10
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![Siemens QAA2072.WU Room Temperature Sensor, 4-20 MA, 55-95 Deg F, Sensing Only, White | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/logo_15148c0b-c65c-4d0a-90cb-994c813b6d1c_medium.png?v=1720023735)
QAA2072.WU | Room Temperature Sensor, 4-20 MA, 55-95 Deg F, Sensing Only, White | Siemens
Brand: Siemens
SKU: QAA2072.WU
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![Siemens QAA2570.2532 SEMI-FLUSH MOUNT TEMP SENSOR, PL-LINK | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/QAA2570.2532_medium.jpg?v=1720023733)
QAA2570.2532 | SEMI-FLUSH MOUNT TEMP SENSOR, PL-LINK | Siemens
Brand: Siemens
SKU: QAA2570.2532
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![Siemens QAA2291.FWNC Room Temperature Sensor, Wireless - P2P, Full Feature, No Logo | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/QAA2291.FWNC_medium.jpg?v=1720023734)
QAA2291.FWNC | Room Temperature Sensor, Wireless - P2P, Full Feature, No Logo | Siemens
Brand: Siemens
SKU: QAA2291.FWNC
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![Siemens BT300-MFAN-FS9 MAIN FAN FS9 48VDC | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/A6V10218740_en_49be8532-a97d-42d7-8dcd-9bcfe88f2891_medium.jpg?v=1723900471)
BT300-MFAN-FS9 | MAIN FAN FS9 48VDC | Siemens
Brand: Siemens
SKU: BT300-MFAN-FS9
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