Sensors Humidity Sensor
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![Siemens QFM81.2 Duct Hygrostat with External Setpoint, 30 - 90% RH | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/A6V10320551_en_medium.jpg?v=1723900536)
QFM81.2 | Duct Hygrostat with External Setpoint, 30 - 90% RH | Siemens
Brand: Siemens
SKU: QFM81.2
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![Siemens QFM3160 Duct RH and Temp Sensor, 2 percent (high) accuracy, RH: 0-10 Vdc, T: 0-10 Vdc | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/44127_en_5928b73f-2142-4139-b585-b9952215bffb_medium.jpg?v=1723900547)
QFM3160 | Duct RH and Temp Sensor, 2 percent (high) accuracy, RH: 0-10 Vdc, T: 0-10 Vdc | Siemens
Brand: Siemens
SKU: QFM3160
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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/A6V10953218_en_medium.jpg?v=1723900529)
QFM3100 | Duct Relative Humidity Temperature Sensor, 2 percent accuracy, 0-10 Vdc | Siemens
Brand: Siemens
SKU: QFM3100
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![Siemens QFM3101 Duct Relative Humidity Sensor, 2 percent accuracy, 4-20 mA | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/44127_en_medium.jpg?v=1723900521)
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/44126_en_b98beb9c-bc2a-4125-a278-c4354f0bc7b6_medium.jpg?v=1723900536)
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 QFM2100 Duct Relative Humidity Sensor, 5 percent accuracy, 0-10 Vdc | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/A6V10953212_en_medium.jpg?v=1723900543)
QFM2100 | Duct Relative Humidity Sensor, 5 percent accuracy, 0-10 Vdc | Siemens
Brand: Siemens
SKU: QFM2100
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![Siemens QFM2101 Duct Relative Humidity Temperature Sensor, 5 percent accuracy, 4-20 mA | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/44126_en_7bb427c5-3a14-44ea-8aa7-bcdd400ba86c_medium.jpg?v=1723900536)
QFM2101 | Duct Relative Humidity Temperature Sensor, 5 percent accuracy, 4-20 mA | Siemens
Brand: Siemens
SKU: QFM2101
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![Siemens QFM3171D DUCT RH & TMP SNSR, 4-20mA, 2%, DISPLAY | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/A6V101006536_en_medium.jpg?v=1723900547)
QFM3171D | DUCT RH & TMP SNSR, 4-20mA, 2%, DISPLAY | Siemens
Brand: Siemens
SKU: QFM3171D
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![Siemens QFM3171 Duct RH and Temp Sensor, 2 percent (high) accuracy, RH: 4-20 4 T: 4-20 mA | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/44127_en_56f7a915-a58b-4351-ab4a-8f589a7f9385_medium.jpg?v=1723900543)
QFM3171 | Duct RH and Temp Sensor, 2 percent (high) accuracy, RH: 4-20 4 T: 4-20 mA | Siemens
Brand: Siemens
SKU: QFM3171
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![Siemens QFM2171 Duct RH and Temp Sensor, 5 percent accuracy, RH: 4-20 4 to 20 Ma T: 4-20 mA | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/44126_en_medium.jpg?v=1723900518)
QFM2171 | Duct RH and Temp Sensor, 5 percent accuracy, RH: 4-20 4 to 20 Ma T: 4-20 mA | Siemens
Brand: Siemens
SKU: QFM2171
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![Siemens QFA1000 Room Hygrostat, 30 to 90% RH | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/A6V10320549_en_medium.jpg?v=1723900533)
QFA1000 | Room Hygrostat, 30 to 90% RH | Siemens (OBSOLETE)
Brand: Siemens
SKU: QFA1000
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![Siemens QFA2001 ROOM RH SENSOR, 4-20MA, 2 WIRE, 5% | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/A6V101006533_en_medium.jpg?v=1723900529)
QFA2001 | ROOM RH SENSOR, 4-20MA, 2 WIRE, 5% | Siemens
Brand: Siemens
SKU: QFA2001
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![Siemens QFM2120 Duct RH and Temp Sensor, 5 percent, RH: 0-10 Vdc, T: 1K ohm Nickel | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/44126_en_0b660e02-cd99-4e5f-b473-70a493b858a7_medium.jpg?v=1723900522)
QFM2120 | Duct RH and Temp Sensor, 5 percent, RH: 0-10 Vdc, T: 1K ohm Nickel | Siemens
Brand: Siemens
SKU: QFM2120
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![Siemens QFA1001 Room Hygrostat with External Setpoint, 30 - 90% RH | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/A6V10320550_en_medium.jpg?v=1723900525)
QFA1001 | Room Hygrostat with External Setpoint, 30 - 90% RH | Siemens (OBSOLETE)
Brand: Siemens
SKU: QFA1001
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![Siemens QFM81.21 Duct Hygrostat, 30 to 90% RH | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/A6V10320552_en_medium.jpg?v=1723900536)
QFM81.21 | Duct Hygrostat, 30 to 90% RH | Siemens
Brand: Siemens
SKU: QFM81.21
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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/44127_en_deeea7aa-59de-4b08-a1f3-5df450f31fd4_medium.jpg?v=1723900544)
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 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/44127_en_945667c4-d45d-43f6-b9b8-47c090a71a78_medium.jpg?v=1723900525)
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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![Vaisala HMT310 Humidity and Temperature Transmitter for Demanding Industrial Applications | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/HMT310_medium.jpg?v=1720029626)
HMT310 | Humidity and Temperature Transmitter for Demanding Industrial Applications | Vaisala
Brand: Vaisala
SKU: HMT310
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![Vaisala GMW93R CO2, Temperature and Humidity Transmitter Series for Green Building Projects | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/GMW93R_medium.jpg?v=1720029620)
GMW93R | CO2, Temperature and Humidity Transmitter Series for Green Building Projects | Vaisala
Brand: Vaisala
SKU: GMW93R
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![Siemens QFM3160D DUCT RH & TMP SNSR, 0-10V, 2%, DISPLAY | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/44127_en_57029b13-e2e8-464d-8bc6-4a2d897fb081_medium.jpg?v=1723900535)
QFM3160D | DUCT RH & TMP SNSR, 0-10V, 2%, DISPLAY | Siemens
Brand: Siemens
SKU: QFM3160D
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