Lufft WS400 Compact Weather Station
The Lufft WS400 is a compact, all-in-one weather station that measures air temperature, relative humidity, air pressure and precipitation. It has no moving parts and is built for a -50 to +60°C climate range to WMO-compliant accuracy.
- Ingress
- IP66
- Supply
- 11 to 32 VDC; 24 VDC ±10% for heater
- Dimensions
- Ø approx. 150 mm, height approx. 280 mm
Overview
In detail
How it works
The WS400 measures air temperature, relative humidity and air pressure, plus precipitation (rain and snow) by droplet detection, with sensors protected by a radiation shield for accuracy and to meet WMO guidelines. With no moving parts and built-in data processing, it is robust and easy to use across all climates. It ships as standard with Modbus communications; SDI-12 output can be supplied on request, and an optional external temperature probe can be fitted, for example as a back-of-module temperature sensor in PV solar applications.
Mounting
The sensor mounts directly onto a 60 mm diameter pole using the supplied 'U' mounting brackets, or via an optional mounting arm that attaches to 40-80 mm diameter poles.
Connectivity
Communication is via an RS485 interface supporting UMB-Binary, UMB-ASCII, Modbus-RTU, Modbus-ASCII, XDR or SDI-12 protocols, giving compatibility with most commercially available Met/HydroMet data loggers and PLC systems through an open communication protocol. An external temperature probe or a Lufft WTB100 rain gauge can be added as optional extras.
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Specifications
Technical specifications
- Dimensions
- Ø approx. 150 mm, height approx. 280 mm
- Weight
- Approx. 1.3 kg
- Interface
- RS485, 2-wire, half-duplex
- Supply voltage
- 11 to 32 VDC; 24 VDC ±10% for heater
- Power consumption
- 20 VA (heater)
- Operating temperature
- -50 to 60°C (with heater)
- Operating relative humidity
- 0 to 100% RH
- Cable length
- 10 m
- Ingress
- IP66
- Mast mounting
- Suitable for mast diameter 60-76 mm
- Temperature principle
- NTC
Related
Often specified alongside
Weathertech
X-LAS MkII Scintillometer
- Path length
- 1 to 12 km
- Dimensions
- 1010 x 552 x 426 mm (with sunshield) 18,75 kg
- Wavelength
- 850 nm
- Range
- 0-100,000 µS/cm ±2%
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