Inspeed wind sensor, hand held wind meter, anemometer, windsensor, windmeter, and weather instruments for stormchasers and weather enthusiasts

anemometer, wind sensor, wind meter, storm chaser, stormchaser weather instruments Inspeed "WINDSWITCH" Controller

This device is for turning other devices on and off based on the 5-second average speed of the wind. Chose from 8 settings: 5, 10, 15, 20, 25, 30, 35, or 40 mph. Automatically switches an internal relay when the 5-second wind speed exceeds the setting, and automatically resets when the 5-second average wind speed drops below 85% of the selected setting. See this diagram for details on how it is set up.

See this DIAGRAM for details.

NOTE: Wind speed display kit is OPTIONAL


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WindSwitch in box

WindSwitch PC Board

Full Product DescriptionSpecificationsAdditional PhotosOwner's ManualsWarranty Support

The Inspeed WindSwitch is intended for turning electrical devices on and off based on the speed of the wind. A microprocessor is used to measure the speed of the wind, and take a 5-second average. When this 5-second average exceeds the selected trip speed, a single pole, 2-position relay is activated. When the 5-second average wind speed drops below the selected trip speed, the relay is deactivated.

It is fully compatible with the Inspeed Vortex Wind Sensor (not included), which can be situated up to hundreds of feet away.

Also compatible with the Inspeed Display Kit (bicycle speedometer calibrated for wind speed).

The way it works is simple:

  • connect your device to the screw terminals, which include Normally Open or a Normally Closed options.
  • select the dipswitch setting that represents your desired trip speed:
    5, 10, 15, 20, 25, 30, 35, or 40 mph.
    Note that the reset speed is 85% of the trip speed.
  • Plug in the Windswitch.
  • All set!

If you think you need more capability than this, have a look at the Wind Alarm & Switch





The Windswitch also works with a an OPTIONAL digital display (bicycle speedometer - see the Pole Mount) so that you can also monitor wind speed.

Cateye Velo8 Display Kit
click to enlarge


Windswitch shown with Wind Sensor (not included)


SENSOR TYPE 3-Cup Lexan rotor (not included). See Vortex Wind Sensor
Relay Type

Single Pole, 2-position (one normally open, one normally closed)
Resistive Loads: Max 10Amp, 240VAC or 24VDC
Inductive Loads: Max 3Amp, 240VAC, 24VDC

DISPLAY None standard.
OPTIONAL Bicycle speedometer LCD Digital, Dual Display (mph or km/h); Provides current speed, max speed, and time.
UPDATE RATE Approximately 1Hz (1 second)
POWER 12VDC, from power supply included, which runs on 115VAC
Available 220V-115VAC optional converter
Enclosure The PCB and relay are mounted in a plastic enclosure intended for indoor use.
Approximate dimensions 6"x4"x2"
ACCURACY +4% from 10 to 50 mph or +/-1mph, whichever is greater

Relay trips when the 5-second average wind speed exceeds:
5, 10, 15, 20, 25, 30, 35, or 40 mph


Relay resets when the 5-second average wind speed falls below 85% of the trip speed:
4.3, 8.5, 12.8, 17.0, 21.3, 25.5, 29.8, or 34 mph

This device is simple enough that we provide only the top and inside stickers for guidance!
If you open the box and it is not what you wanted or expected, return it within 2 weeks in as-new condition for a 100% refund (not including shipping). We provide a 1 year 100% warranty on any defective parts and/or any failure resulting from normal use.