fronius|SKU:4,204,110,027

Fronius Wind Speed Sensor — IP 54-Rated Cup Anemometer for PV Monitoring

Accurate Wind Data for Your Solar Setup

Cup anemometer design — Reed contact delivers accurate wind speed readings
IP 54 protection rating — Handles dust and water exposure in the field
Wide temperature range — Operates from -20°C to +60°C reliably
Clean signal output — Low ≤0.5V / High ≥4.5V rectangle signal
  • FREE System Design Consultation -- Our engineers verify component compatibility before you buy
  • FREE Shipping -- Ships free to your door, no minimum order

$51.95

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  • Fronius Wind Speed Sensor
Fronius | Sensor, Wind Speed
Fronius Wind Speed Sensor — IP 54-Rated Cup Anemometer for PV Monitoring
$51.95

Accurate Wind Data for Your Solar Setup

Track real-time wind conditions on your off-grid PV system with the Fronius wind speed sensor. Its cup anemometer and reed contact deliver reliable readings across a wide operating range. Built weatherproof with IP 54 protection and field-tested from -20°C to +60°C, this sensor handles the conditions your solar array faces every day. Pair it with irradiation and ambient temperature tracking for a complete picture of your energy environment. Ships free.

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Cup Anemometer
IP 54 Protected
-20°C to +60°C Range
±5% Tolerance
3.35 in
Overall Dimension
IP 54
Protection Rating
2.5 m/s
Activation Threshold
Know What Your Panels Actually Face

Know What Your Panels Actually Face

You sized your array based on solar irradiance maps — but wind loading, cooling effects, and real-world conditions rarely match the spreadsheet. This Fronius sensor gives you measured wind speed data, not estimates, so you can correlate output against actual conditions. At Off Grid Vault, every component we carry is something we would install on our own cabins — no exceptions. The cup anemometer with reed contact delivers readings with ±5% tolerance from 5 m/s upwards, and the IP 54 housing means this off-grid proven sensor stays accurate through seasons of exposure. When your system underperforms, the first question is always: what were the real conditions? This sensor gives you the answer.

Battle-Tested Accuracy in Extreme Temperatures

Battle-Tested Accuracy in Extreme Temperatures

Mount this sensor on your cabin roof or tower and forget about it. The Fronius wind speed sensor operates from -20°C to +60°C, covering the full range of continental U.S. climates — from Montana winters to Arizona summers. The cup anemometer activates at a 2.5 m/s threshold and resolves wind speed to 1 m/s increments. Output is a clean rectangle signal: low ≤0.5V, high ≥4.5V, compatible with Fronius monitoring platforms. IP 54 protection means dust, rain, and wind-driven debris stay outside the housing where they belong. This battle-tested sensor is built to sit on your mount and report accurately, season after season.

Calibrated for Grid-Independent System Monitoring

Calibrated for Grid-Independent System Monitoring

Precision matters when you are tracking your off-grid system's real-world performance. The calibration factor is fixed at 5.22 Hz per km/h and 18.79 Hz per m/s — no guesswork, no field calibration needed. With ±5% tolerance from 5 m/s and above, you get data you can actually use to compare against your PV output curves, battery charge rates, and daily kWh production. The 3.35-inch form factor fits standard mounting hardware, and the reed contact mechanism has no wearing brushes or optical lenses to degrade. At Off Grid Vault, we carry this sensor because it matches the standard our customers set: honest numbers from hardware that stays accurate for years.

Compatibility Check

Confirm this sensor works with your setup before ordering.

  • PV system accepts reed contact wind speed input
  • Installation location accommodates 3.35 in sensor footprint
  • Ambient temperature at install site stays within -20°C to +60°C

Where It Performs

Designed for PV monitoring in demanding, grid-independent environments.

Off-Grid Homestead Arrays
Remote Cabin Solar Systems
Solar Monitoring Stations

Full specifications

Full specifications10 data points across 4 categories

Dimensions

Dimension3.35 in

Power & Performance

SensorCup anemometer with reed contact
Output signalRectangle: Low ≤ 0.5V / High ≥ 4.5 V
Calibration factor5.22 Hz = 1 km/h, 18.79 Hz = 1 m/s
Threshold2.5 m/s wind speed
Resolution1 m/s, 1 km/h
Tolerance±5% from 5 m/s upwards

Materials

ConstructionSee product page

Compliance & Warranty

Degree of protectionIP 54
Permissible ambient temperature-20°C to +60°C

The Off Grid Vault Promise

Every product we carry is vetted for real-world performance. If it doesn't meet our standards, it doesn't make the cut.

30-Day Performance GuaranteeIf it doesn't perform as specified, we make it right — uninstalled returns accepted within 30 days in original packaging.
Free ShippingShips free on all orders — no minimums, no surprise freight charges.
Free System Design ConsultationOur engineers size your system for your actual consumption — no guesswork, no incompatible components.
★★★★★
“Mounted this on my array rack back in March. Wanted to correlate wind cooling effects with my panel output on hot afternoons. Data lines up with what I see on the Fronius dashboard — the sensor reads within spec and has not missed a beat through monsoon season. IP 54 rating is legit, no condensation issues inside the housing. Small addition to the system but it fills a real gap in my monitoring.”
F
First L.Flagstaff, AZ

This wind speed sensor is a game-changer for your PV system, allowing you to track additional measured values like irradiation and ambient temperature. With its cup anemometer and reed contact, it’s designed to provide accurate readings. The sensor has a dimension of 3.35 inches and operates within a temperature range of -20°C to +60°C. It’s also IP 54 protected, making it durable and reliable.

Dimension 3.35 in
Sensor Cup anemometer with reed contact
Output signal Rectangle: Low ≤ 0.5V / High ≥ 4.5 V
Calibration factor 5.22 Hz = 1 km/h, 18.79 Hz = 1 m/s
Threshold 2.5 m/s wind speed
Resolution 1 m/s, 1 km/h
Tolerance ±5% from 5 m/s upwards
Degree of protection IP 54
Permissible ambient temperature -20°C – +60°C
Connection cable 2 m Cu cable, exposed ends, ferrules, UV-resistant
Max. cable length 30 m

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Frequently Asked Questions

This Fronius wind speed sensor outputs a rectangle signal with low ≤0.5V and high ≥4.5V, along with a fixed calibration factor. Whether it integrates directly with non-Fronius equipment depends on your monitoring platform's input specifications. If you are unsure about compatibility with your system, contact us — our free system design consultation covers component matching for any setup we support.
A wind speed sensor is only useful if it delivers accurate, consistent data over time. At Off Grid Vault, we vet every component for build quality and real-world performance before listing it. You also get our 30-day performance guarantee, free shipping, and access to our team if you need help integrating it into your system. Unlike a generic marketplace listing, you are buying from people who understand solar monitoring and will still be here if something does not perform as specified.
The Fronius wind speed sensor carries an IP 54 protection rating, which means it is shielded against dust ingress and water splashes from any direction. Its operating temperature range spans -20°C to +60°C, covering the full spectrum of U.S. continental climates. The reed contact mechanism has no brushes or optical components that degrade with exposure. This sensor is designed for permanent outdoor mounting on PV installations — it is built to stay accurate through years of sun, rain, wind, and temperature swings.
Necessary depends on how seriously you track performance. If you want to understand why your array produced 18 kWh one day and 12 kWh the next — beyond just checking the weather app — wind data gives you a second variable to correlate against output. It also matters for structural planning: knowing sustained wind speeds at your site helps you confirm your mounting system is adequately rated. For system builders who treat their setup as a long-term investment worth optimizing, this sensor provides data that spreadsheets alone cannot.
The sensor has a ±5% tolerance starting from 5 m/s wind speed and above. Below that threshold, the cup anemometer activates at 2.5 m/s but accuracy specifications apply from the 5 m/s mark. Resolution is 1 m/s or 1 km/h. The calibration factor is fixed at 5.22 Hz per km/h and 18.79 Hz per m/s — no user calibration required. For most monitoring purposes, this level of precision is more than sufficient to track trends and correlate wind conditions with PV output performance.
Off Grid Vault offers a 30-day performance guarantee on all products. If the sensor does not perform as specified — meaning it does not deliver readings within its stated tolerance and operating range — you can return it uninstalled and in original packaging for a full refund. If you are uncertain about compatibility before purchasing, take advantage of our free system design consultation. Our team can verify whether this sensor fits your monitoring platform before you buy, so there are no surprises after it arrives.
SKU: 4,204,110,027 Categories: , Brand:

The Off Grid Vault Promise

Every product we carry is vetted for real-world performance. If it doesn't meet our standards, it doesn't make the cut.

30-Day Performance Guarantee If it doesn't perform as specified, we make it right — uninstalled returns accepted within 30 days in original packaging.
Free Shipping Ships free on all orders — no minimums, no surprise freight charges.
Free System Design Consultation Our engineers size your system for your actual consumption — no guesswork, no incompatible components.

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About fronius Solar Accessories

fronius is a trusted manufacturer of premium solar accessories. OffGridVault is an authorized dealer offering the full fronius lineup with free delivery, price match guarantee, and expert support.

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