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Stock
In stock, usually ships within 24 hours
Usually ships in 1-3 days
Usually ships in 1-2 weeks
Drop ships from manufacturer
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Returns
If you are not satisfied with your purchase, please request a Return Material Authorization (RMA) by emailing your account representative or the general customer support address: customercare@fondriest.com
Why Buy from Fondriest
At Fondriest, we are committed to providing high quality products at affordable prices with the industry’s best support. Additionally, we offer:
- Discounts
High volume purchases lead to favorable pricing, which is passed on to the customer by way of discount off MSRP.
- Assembly, Test and Calibration
Sensors and instruments are assembled, tested and calibrated prior to shipment. A calibration report is included.
- Lifetime Technical Support
A knowledgeable staff of application engineers provides ongoing support for the life of the product.
- Product Training
Application engineers are available for webinars or personalized, on-site start-up and training. Extensive measurement technology, product troubleshooting and instrument repair workshops are offered at the factory.
- Extended Warranties
Warranties extended beyond factory standards are offered on many items to ensure a lasting useful life.
- Repair
A factory-authorized service center provides fast-turnaround product repair and annual maintenance.
- Rental
Rental equipment is available to minimize downtime and cover equipment needs when projects expand.
- Communications
Call, email or chat online with application engineers. Email correspondence is responsive and a toll free number is available for added convenience.
- Quick Ship
Many orders ship on the same day and expedited shipping is available. If a product cannot be shipped immediately, customers are notified by phone or email.
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Description
Features
- Integrated pyranometer for solar radiation measurements
- Easily mounts to 2" diameter pipe with integrated bracket mount & U-bolts
- SDI-12 output for integration with NexSens and other data loggers

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8375.U10 | WS502 multi-parameter weather sensor, air temperature, humidity, pressure, solar radiation & wind, 10m cable |
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| Image | Part # | Product Description | Price | Order | Stock |
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8160.WT1 | WT1 surface temperature sensor, 10m cable |
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8353.10 | WTB100 tipping bucket rain gauge, 0.2mm per tip, 10m cable |
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WSConfig | USB configuration cable for Lufft WS-series sensors |
$395.00
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MS8-CON | MS8 connectorization of sensor cable assembly |
$119.00
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MS8-BULK | MS8 bulkhead connector assembly with 1m flying lead cable |
$95.00
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3100-MAST | Mast-mounted 3100-iSIC data logging system with cellular modem telemetry & solar charging kit |
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4100-MAST | Mast-mounted 4100-iSIC data logging system with spread spectrum radio telemetry & solar charging kit |
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6100-MAST | Mast-mounted 6100-iSIC data logging system with Iridium satellite telemetry & solar charging kit |
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Details
Overview
The Lufft family of multi-parameter weather sensors offer a cost-effective, compact alternative for the acquisition of a variety of measurement parameters on land- and buoy-based weather stations. Depending on the model, each sensor will measure a different combination of weather parameters to meet a wide variety of applications.
Air Temperature & Humidity
The Lufft WS502 Multi-Parameter Weather Sensor measures temperature using a highly accurate NTC-resistor, while humidity is measured using a capacitive humidity sensor. Both sensors are located in a ventilated radiation shield to reduce the effects of solar radiation.
Pressure
Absolute air pressure is measured using a built-in MEMS sensor. The relative air pressure referenced to sea level is calculated using the barometric formula with the aid of the local altitude, which is user-configurable on the equipment.
Wind Speed & Direction
The wind sensor uses four ultrasound sensors which take cyclical measurements in all directions. The resulting wind speed and direction are calculated from the measured run-time sound differential.
Compass
The integrated electronic compass can be used to check the north-south adjustment of the sensor housing for wind direction measurement. It is also used to calculate the compass-corrected wind direction.
Solar Radiation
The pyranometer is intended for shortwave global solar radiation measurements in the spectral range from 300 to 1100nm. The thermopile sensor construction measures the solar energy that is received from the total solar spectrum and the whole hemisphere. The output is expressed in Watts per square meter.
- Air Temperature
- Principle: NTC
- Measuring Range: -50 to +60 C
- Resolution: 0.1 C (-20 to +50 C); otherwise 0.2 C
- Accuracy: +/-0.2 C (-20 to +50 C); otherwise +/-0.5 C
- Units: C; F
- Humidity
- Principle: Capacitive
- Measuring Range: 0 to 100% RH
- Resolution: 0.1% RH
- Accuracy: +/-2% RH
- Units: % RH; g/m3; g/kg
- Pressure
- Principle: Capacitive
- Measuring Range: 300 to 1200hPa
- Resolution: 0.1hPa
- Accuracy: +/-1.5hPa
- Unit: hPa
- Radiation
- Response Time (95%): <1s
- Spectral Range: 300 to 1100 nm
- Measuring Range: 1400 W/m2
- Wind Speed
- Principle: Ultrasonic
- Measuring Range: 0 to 60m/s
- Resolution: 0.1m/s
- Accuracy: +/-0.3m/s or 3% (0 to 35m/s); +/-5% (>35m/s)
- Response Threshold: 0.3m/s
- Units: m/s; km/h; mph; kts
- Wind Direction
- Principle: Ultrasonic
- Measuring Range: 0 to 359.9 degrees
- Resolution: 0.1 degrees
- Accuracy: +/-3 degrees
- Response Threshold: 0.3m/s
- Compass
- Principle: Integrated Electronic Compass
- Measuring Range: 0 to 359.9 degrees
- Resolution: 1.0 degree
- Technical Data
- Interface: SDI-12, Modbus
- Operating Temperature: -50 to +60 C
- Operating Humidity: 0 to 100% RH
- Included Cable Length: 10m
- (1) Lufft WS502 Multi-Parameter Weather Sensor
- (1) 10m sensor cable
- (1) Operations manual



