Sensors 2.4" (61 mm) Monitored wire size
We have 9,000+ sensor models in our stock for your next building automation project. Duct, pipe, indoor and outdoor sensors: Blackhawk Supply has it all! Shop today!
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Outside Humidity Sensors 
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Light/LUX Sensors 
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H321SP | CT | SplitCore | 0-800A | 4-20mA | Cal Span | Veris
Brand: Veris
SKU: H321SP
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H421 | Split Core | Span Adj. | Range: 0-2400AAC | Output: 4-20mA | Veris
Brand: Veris
SKU: H421
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TSENSE-LCD | CO2/RH/TEMP, LCD, RELAY, BACNT | ACI
Brand: ACI
SKU: TSENSE-LCD
EP2100S | EP | Analog In | 3-15/0-20psi | Veris
Brand: Veris
SKU: EP2100S
SCE-20H1608LP | NEMA 3R, 12, 4 | Nema 4 LP Enclosure, 20H x 16W x 8D | Saginaw
Brand: Saginaw
SKU: SCE-20H1608LP
SCE-24N2406LP+SCE-24N24MPP | NEMA1 | 24H x 24W x 6D | Subpanel: Perforated | Knockouts: No | Keyed: No | Saginaw
Brand: Saginaw
SKU: SCE-24N2406LP+SCE-24N24MPP
QFM3160 | Duct RH and Temp Sensor, 2 percent (high) accuracy, RH: 0-10 Vdc, T: 0-10 Vdc | Siemens
Brand: Siemens
SKU: QFM3160
VG1275CP+943GGA | 1" 2W BALL VALVE 18.7CV; SS TRIM; SWEAT END CONN;PROP; SP CLOSED; W/O SW | Johnson Controls
Brand: Johnson Controls
SKU: VG1275CP+943GGA
GRD221.1U | Damper Actuator | Spring Return | 120 VAC | On/Off | 30 lb-in | Siemens
Brand: Siemens
SKU: GRD221.1U