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![Siemens QFM3100 Duct Relative Humidity Temperature Sensor, 2 percent accuracy, 0-10 Vdc | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/QFM3100_medium.jpg?v=1720023785)
QFM3100 | Duct Relative Humidity Temperature Sensor, 2 percent accuracy, 0-10 Vdc | Siemens
Brand: Siemens
SKU: QFM3100
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![Siemens QFA3160 Outside Air RH and Temp Sensor, 2 percent, RH: 0-10 Vdc, T: 0-10 Vdc | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/QFA3160_medium.jpg?v=1720023823)
QFA3160 | Outside Air RH and Temp Sensor, 2 percent, RH: 0-10 Vdc, T: 0-10 Vdc | Siemens
Brand: Siemens
SKU: QFA3160
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![Siemens 533-376-18 Duct Point Temperature Sensor, Platinum, 20 to 120 Deg F, 18-Inch | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/533-376-18_medium.jpg?v=1720022569)
533-376-18 | Duct Point Temperature Sensor, Platinum, 20 to 120 Deg F, 18-Inch | Siemens
Brand: Siemens
SKU: 533-376-18
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![Siemens 192-3044 Room Thermostat Kit, Pneumatic, RETROLINE, DA, Fahrenheit, DSP, D/N, 2-pipe | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/192-3044_medium.jpg?v=1720021625)
192-3044 | Room Thermostat Kit, Pneumatic, RETROLINE, DA, Fahrenheit, DSP, D / N, 2-pipe | Siemens
Brand: Siemens
SKU: 192-3044
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![Siemens 540-670B Room Temperature Sensor with Setpoint and Occupancy Override, White | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/A6V10219004_en_medium.jpg?v=1720094537)
540-670B | Room Temperature Sensor with Setpoint and Occupancy Override, White | Siemens
Brand: Siemens
SKU: 540-670B
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![Siemens 588-100B 6-WIRE 2-RJ11 RS CABLE 50'PLMN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/41l2O2Dy2kL_medium.jpg?v=1720022577)
588-100B | 6-WIRE 2-RJ11 RS CABLE 50'PLMN | Siemens
Brand: Siemens
SKU: 588-100B
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![Siemens 547-323A RCM FM BAC +/-.25"wc(62.5Pa)0.5%FS | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/547-322B-2__18675.1474097902.1280.1280_medium.jpg?v=1720022574)
547-323A | RCM FM BAC + / -.25"wc(62.5Pa)0.5%FS | Siemens
Brand: Siemens
SKU: 547-323A
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![Siemens GND221.1U Damper Actuator | Spring Return | 120 VAC | On/Off | 53 lb-in | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/logo_7e6e824b-eeab-4204-880f-c29fe4b0e51f_medium.png?v=1720023677)
GND221.1U | Damper Actuator | Spring Return | 120 VAC | On / Off | 53 lb-in | Siemens (OBSOLETE)
Brand: Siemens
SKU: GND221.1U
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![Siemens GDE131.1P Damper Actuator | Non-Spring Return | 24 VAC | On/Off/Floating Point | 44 lb-in | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/GDE131.1P_medium.jpg?v=1720023711)
GDE131.1P | Damper Actuator | Non-Spring Return | 24 VAC | On / Off / Floating Point | 44 lb-in | Siemens
Brand: Siemens
SKU: GDE131.1P
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![Siemens 544-342-24 Flexible Averaging Duct Sensor, 1K Ohm Platinum, 24-Foot | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/544-342-24_medium.jpg?v=1720022573)
544-342-24 | Flexible Averaging Duct Sensor, 1K Ohm Platinum, 24-Foot | Siemens
Brand: Siemens
SKU: 544-342-24
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![Siemens GVD221.1U Damper Actuator | Spring Return | 120 VAC | On/Off | 200 lb-in | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/GVD221.1U_medium.jpg?v=1720094536)
GVD221.1U | Damper Actuator | Spring Return | 120 VAC | On / Off | 200 lb-in | Siemens
Brand: Siemens
SKU: GVD221.1U
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![Siemens QAA2280.FWNC Room Temp Sensor, Full Feature, No Logo, Tool Port, Siemens TEC Controllers | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/QAA2280.FWNC_medium.jpg?v=1720023823)
QAA2280.FWNC | Room Temp Sensor, Full Feature, No Logo, Tool Port, Siemens TEC Controllers | Siemens
Brand: Siemens
SKU: QAA2280.FWNC
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![Siemens GMA126.1U Damper Actuator | Spring Return | 24 VAC/DC | On/Off | 62 lb-in | SW | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/GMA126.1U_medium.jpg?v=1720023708)
GMA126.1U | Damper Actuator | Spring Return | 24 VAC / DC | On / Off | 62 lb-in | SW | Siemens
Brand: Siemens
SKU: GMA126.1U
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![Siemens GMA121.1P Damper Actuator | Spring Return | 24 VAC | On/Off | 62 lb-in | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/GMA121.1P_4cea4b94-208b-4285-a917-87ad0af08c4e_medium.jpg?v=1720094540)
GMA121.1P | Damper Actuator | Spring Return | 24 VAC | On / Off | 62 lb-in | Siemens
Brand: Siemens
SKU: GMA121.1P
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![Siemens 331-2961 Damper Actuator, Pneu No 4, 4" Stroke, 8-13psi, Integ Pivot Mount, UL Rec F/S | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/331-2961_medium.jpg?v=1720022349)
331-2961 | Damper Actuator, Pneu No 4, 4" Stroke, 8-13psi, Integ Pivot Mount, UL Rec F / S | Siemens
Brand: Siemens
SKU: 331-2961
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![Siemens QPA2000 Room Sensor CO2, 0 to 10V | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/QPA2000_medium.jpg?v=1720023814)
QPA2000 | Room Sensor CO2, 0 to 10V | Siemens
Brand: Siemens
SKU: QPA2000
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![Siemens QFM3101 Duct Relative Humidity Sensor, 2 percent accuracy, 4-20 mA | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/QFM3101_medium.jpg?v=1720023804)
QFM3101 | Duct Relative Humidity Sensor, 2 percent accuracy, 4-20 mA | Siemens
Brand: Siemens
SKU: QFM3101
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![Siemens QFM2160U Duct RH and Temp Sensor, 5 percent accuracy, RH: 0-10 Vdc, T: 0-10 Vdc | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/QFM2160U_medium.jpg?v=1720023788)
QFM2160U | Duct RH and Temp Sensor, 5 percent accuracy, RH: 0-10 Vdc, T: 0-10 Vdc | Siemens
Brand: Siemens
SKU: QFM2160U
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![Siemens 544-577-25 Liquid Immersion Temperature Sensor, 1K Ohm Platinum, (375 Alpha), 2.5-Inch | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/544-577-25_medium.jpg?v=1720022571)
544-577-25 | Liquid Immersion Temperature Sensor, 1K Ohm Platinum, (375 Alpha), 2.5-Inch | Siemens
Brand: Siemens
SKU: 544-577-25
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![Siemens 544-339-8 Duct Point Sensor, 1K Ohm Platinum (375 Alpha), 8-Inch | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/544-339-8_63f7e750-9736-452a-b7d3-12e50ee976c1_medium.jpg?v=1720022550)
544-339-8 | Duct Point Sensor, 1K Ohm Platinum (375 Alpha), 8-Inch | Siemens
Brand: Siemens
SKU: 544-339-8
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![Siemens 544-339-18 Duct Point Sensor, 1K Ohm Platinum (375 Alpha), 18-Inch | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/544-339-18_medium.jpg?v=1720022558)
544-339-18 | Duct Point Sensor, 1K Ohm Platinum (375 Alpha), 18-Inch | Siemens
Brand: Siemens
SKU: 544-339-18
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![Siemens 540-995 Flush Mount Room Temperature Sensor | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/540-995_medium.jpg?v=1721327695)
540-995 | Flush Mount Room Temperature Sensor | Siemens
Brand: Siemens
SKU: 540-995
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![Siemens QFA3280.FWSC Room Temp Sensor, RH 2%, TEC, Digital signal, Sense & Display | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/QFA3280.FWSC_medium.jpg?v=1720023775)
QFA3280.FWSC | Room Temp Sensor, RH 2%, TEC, Digital signal, Sense & Display | Siemens
Brand: Siemens
SKU: QFA3280.FWSC
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![Siemens 599-03391 Repack Kit, Bronze Valves 1/2" to 2" | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/599-03391_medium.jpg?v=1720022696)
599-03391 | Repack Kit, Bronze Valves 1 / 2" to 2" | Siemens
Brand: Siemens
SKU: 599-03391
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View all →![Siemens 147-2000 Positioning Relay, Pneumatic, Adj Start Point and Span, Rapid Response | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/147-2000_large.jpg?v=1720021388)
147-2000 | Positioning Relay, Pneumatic, Adj Start Point and Span, Rapid Response | Siemens
Brand: Siemens
SKU: 147-2000![Saginaw SCE-36H3612LP NEMA 3R, 12, 4 | Nema 4 LP Enclosure, 36H x 36W x 12D | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/sce-36h3612lp_large.png?v=1720018558)
SCE-36H3612LP | NEMA 3R, 12, 4 | Nema 4 LP Enclosure, 36H x 36W x 12D | Saginaw
Brand: Saginaw
SKU: SCE-36H3612LP![Neptronic BM000 B series low voltage Actuators | 50 in.lb | 24V | ON/OFF | Floating | Modulating | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/actuators-banner_f5bd3c5f-144c-44ec-bfcc-7253b8ceeb62_large.jpg?v=1720017277)
BM000 | B series low voltage Actuators | 50 in.lb | 24V | ON/OFF | Floating | Modulating | Neptronic
Brand: Neptronic
SKU: BM000![Schneider Electric MA-418-500 Act (MA-418-500): Elec, 2Pos, SR, 120 VAC, TB, 60 in-lb, Rotary, Auxiliary Switch: 1 SPDT, N1, Erie | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/MA-4_ecd10f9d-5838-4cc6-ac2b-c31863a62c32_large.jpg?v=1720019688)
MA-418-500 | Act (MA-418-500): Elec, 2Pos, SR, 120 VAC, TB, 60 in-lb, Rotary, Auxiliary Switch: 1 SPDT, N1, Erie | Schneider Electric
Brand: Schneider Electric
SKU: MA-418-500![Schneider Electric MA-418 Act (MA-418): Elec, 2Pos, SR, 120 VAC, TB, 60 in-lb, Rotary, N1, Erie | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/MA-4_c6d3be61-0ef2-433b-830d-9bec9e29b3e0_large.jpg?v=1719925296)
MA-418 | Act (MA-418): Elec, 2Pos, SR, 120 VAC, TB, 60 in-lb, Rotary, N1, Erie | Schneider Electric
Brand: Schneider Electric
SKU: MA-418![Veris PW2XX05S Pressure | Wet | NEMA 4 | 0-250PSID | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/PW2XX05S_large.jpg?v=1720029918)
PW2XX05S | Pressure | Wet | NEMA 4 | 0-250PSID | Veris
Brand: Veris
SKU: PW2XX05S![Veris E50B1 DIN Energy Meter | VAR Pulse Out | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/E50B1_468e105f-c937-40fd-b47e-8b7eebfadb24_large.jpg?v=1720029721)
E50B1 | DIN Energy Meter | VAR Pulse Out | Veris
Brand: Veris
SKU: E50B1