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    4 Products

    Airflow Modules for Development Boards

    Position these modules in vents or near sensitive electronics to monitor airflow. Unlike handheld meters, these modules continuously monitor airflow and alert you to changes. Connect them to development boards with Qwiic cords or by soldering.
    Modules with Airflow Sensor
    Image of Product. Front orientation. Development Board Sensor Modules. Airflow Modules for Development Boards.
    Output Data
    Airflow Speed,
    mph
    Airflow Speed
    Tolerance, mph
    Resolution,
    bit
    Freq.,
    Hz
    Measures
    Temp. Range,
    ° F
    Input Voltage,
    V DC
    I2C
    Address
    Connection
    Method
    No. of Qwiic
    Connections
    Lg.
    Wd.
    Each
    I²C Communication Protocol—Qwiic Connection
    0 to 33.6-1.68 to 1.68128Airflow0 to 1852.7 to 3.30x28Solder21"1"0000000000000
     

    Airflow-Actuated HVAC Switches

    Image of Product. Front orientation. HVAC Switches. Airflow-Actuated HVAC Switches.
    Use this switch to sense changes in airflow velocity in duct. The paddle extends into the duct and actuates the switch when airflow reaches the setpoint. Switch is rated NEMA 3R for protection from dirt, falling liquids, and light splashing.
    Paddle
    Speed Set Point,
    fpm
    Temp. Range,
    ° F
    Current @ Voltage
    Electrical
    Connection
    Switch
    Designation
    For Conduit
    Trade Size
    Knockout
    Dia.
    Material
    Ht.
    Wd.
    For Use
    Outdoors
    Enclosure
    Rating
    Certification
    Each
    Paddle Sensors
    350 to 50032 to 10410 amp @ 240V AC
    16 amp @ 120V AC    		Screw TerminalSPDT
    		1/2
    		7/8"Stainless Steel
    		6 7/8"3 1/8"YesIP43, NEMA 3R
    		UL Listed, C-UL Listed, CE Marked
    		00000000000000
     

    Air-Pressure-Actuated HVAC Switches

    Image of Product. Front orientation. HVAC Switches. Air-Pressure-Actuated HVAC Switches.
    Often used to detect clogged air filters and iced air conditioner coils, these switches sense small changes in pressure between two points in your duct.
    Pressure Set
    Point, in. H₂O
    Accuracy,
    in. H₂O
    Temp. Range,
    ° F
    Current @ Voltage
    Electrical
    Connection Type
    Switch
    Designation
    Max. Pressure,
    psi
    Low Pressure Side
    Connection
    High Pressure Side
    Inside Connection
    High Pressure Side
    Outside Connection
    For Use
    Outdoors
    Enclosure
    Rating
    Certification
    Each
    Diaphragm Sensors
    0.05 to 50.025-40 to 1652.9 amp @ 240V AC
    5.8 amp @ 120V AC    		HardwireSPDT
    		11/8 NPT Female1/8 NPT Female1/2 NPSMNoNEMA 1
    		CSA Certified, UL Listed
    		0000000000000
    0.05 to 50.04-40 to 1654.9 amp @ 240V AC
    9.8 amp @ 120V AC    		HardwireSPDT
    		11/8 NPT Female1/8 NPT Female1/2 NPSMNoNEMA 1
    		CSA Certified, UL Listed
    		000000000000
     
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