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    Lufft WS401 Weather Sensor, Tipping Bucket

    Item No: 8377-U01

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    Product Description

    Lufft WS401 Weather Sensor, Tipping Bucket
    Integrated design with ventilated radiation protection for measuring:

    • Air temperature
    • Relative humidity
    • Precipitation
    • Air pressure
    Relative humidity is measured by means of a capacitive sensor element; a precision NTC measuring element is used to measure air temperature.

    Optionally, the Lufft WS401-UMB can be equipped with a leaf wetness sensor in addition. Precipitation is measured by tipping spoon and tipping bucket processes. The flexible tipping bucket allows a 0.2mm or a 0.5mm resolution of the rainfall.

    Aspirated temperature/ humidity measurement. Open communication protocol:
    • ASCII
    • UMB
    • UMB-Binary
    • SDI12
    • MODBUS
    • Analog outputs in combination with 8160-UDAC
    • Comes with 10m cable

    Specifications and additional product information
    Lufft WS401-UMB 8377-U01
    Dimensions Ø approx. 150 mm, height approx. 380 mm
    Weight approx. 1.5kg
    Principle NTC
    Measuring range -50...60°C
    Accuracy ±0.2°C (-20°C...+50°C), otherwise ±0.5°C (> -30 ° C)
    Relative humidity
    Principle capacitive
    Measuring range 0…100% RH
    Accuracy ±2% RH
    Resolution 0.01mm
    Accuracy ±2%
    Air Pressure
    Principle MEMS capacitive
    Measuring range 300...1200 hPa
    Accuracy ±0.5hPa
    General Information
    Protection type housing IP65
    Interface RS 485 2-wire, half duplex
    Operating power consumption 24 VDC +/- 10% < 4VA (without heating)
    Operating humidity range 0...100%
    Operating temperature range -50...60°C
    Surge protection 8379-USP
    Power supply 24V/4A 8366-USV1
    RS485 to USB Cable 8160-RS485USB
    Digital-analog-converter 8160-UDAC
    Leaf wetness sensor WLW100 342-LEAF
    Temperature Sensor WT1 160-WT1
    Surface Temperature Sensor WST1 160-WST1
    20m Cable 8370-UKAB20 (Other lengths available)
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